TC12653.3VAT [MICROCHIP]

3.3 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSFM5, TO-220, 5 PIN;
TC12653.3VAT
型号: TC12653.3VAT
厂家: MICROCHIP    MICROCHIP
描述:

3.3 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSFM5, TO-220, 5 PIN

局域网 输出元件 调节器
文件: 总18页 (文件大小:846K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
TC1265  
800 mA Fixed-Output CMOS LDO with Shutdown  
Features  
Description  
• Very Low Dropout Voltage  
The TC1265 is a fixed-output, high-accuracy (typically  
±0.5%) CMOS low dropout regulator. Designed  
specifically for battery-operated systems, the TC1265’s  
CMOS construction eliminates wasted ground current,  
significantly extending battery life. Total supply current  
is typically 80 µA at full load (20 to 60 times lower than  
in bipolar regulators).  
• 800 mA Output Current  
• High Output Voltage Accuracy  
• Standard or Custom Output Voltages  
• Overcurrent and Overtemperature Protection  
• SHDN Input for Active Power Management  
• ERROR Output Can Be Used as a Low Battery  
Detector (SOIC only)  
Key features of the TC1265 include ultra low noise  
operation, very low dropout voltage (typically 450 mV  
at full load) and fast response to step changes in load.  
Applications  
The TC1265 incorporates both overtemperature and  
overcurrent protection. The TC1265 is stable with an  
output capacitor of only 1 µF and has a maximum  
output current of 800 mA. It is available in 8-Pin SOIC,  
5-Pin TO-220 and 5-Pin DDPAK packages.  
• Battery-operated Systems  
• Portable Computers  
• Medical Instruments  
• Instrumentation  
• Cellular/GSM/PHS Phones  
• Linear Post-Regulators for SMPS  
• Pagers  
Package Type  
5-Pin TO-220  
5-Pin DDPAK  
Front View  
Tab Is GND  
Tab Is GND  
Typical Application  
TC1265  
TC1265  
VOUT  
VOUT  
VIN  
VIN  
+
C1  
1 µF  
TC1265  
1
2
3
4
5
3
2
5
4
1
GND  
SHDN  
SHDN  
8-Pin SOIC  
V
V
1
2
8
OUT  
IN  
GND  
NC  
NC  
TC12657  
6
SHDN  
ERROR  
3
4
BYPASS  
5
© 2006 Microchip Technology Inc.  
DS21376D-page 1  
TC1265  
† Notice: Stresses above those listed under "Maximum  
Ratings" may cause permanent damage to the device. This is  
a stress rating only and functional operation of the device at  
those or any other conditions above those indicated in the  
operation listings of this specification is not implied. Exposure  
to maximum rating conditions for extended periods may affect  
device reliability.  
1.0  
ELECTRICAL  
CHARACTERISTICS  
Absolute Maximum Ratings †  
Input Voltage .........................................................6.5V  
Output Voltage.................. (VSS – 0.3V) to (VIN + 0.3V)  
Power Dissipation................Internally Limited (Note 7)  
Maximum Voltage on Any Pin ........VIN +0.3V to -0.3V  
Operating Temperature Range...... -40°C < TJ < 125°C  
Storage Temperature..........................-65°C to +150°C  
DC CHARACTERISTICS  
Electrical Specifications: Unless otherwise indicated, VIN = VR + 1.5V, (Note 1), IL = 100 µA, CL = 3.3 µF,  
SHDN > VIH, TA = +25°C. Boldface type specifications apply for junction temperatures of -40°C to +125°C.  
Parameters  
Sym  
Min  
Typ  
Max  
Units  
Conditions  
Input Operating Voltage  
Maximum Output Current  
Output Voltage  
VIN  
2.7  
6.0  
V
mA  
V
Note 2  
IOUTMAX  
VOUT  
800  
VR – 2.5% VR ± 0.5% VR + 2.5%  
VR – 2% VR ± 0.5% VR + 3%  
VR 2.5V  
VR = 1.8V  
VOUT Temperature Coefficient  
Line Regulation  
ΔVOUT/ΔT  
ΔVOUT/ΔVIN  
ΔVOUT/VOUT  
VIN–VOUT  
40  
0.007  
0.002  
20  
0.35  
+0.01  
30  
ppm/°C Note 3  
%
(VR + 1V) VIN 6V  
Load Regulation (Note 4)  
Dropout Voltage (Note 5)  
-0.01  
%/mA IL = 0.1 mA to IOUTMAX  
mV  
VR 2.5V, IL = 100 µA  
VR 2.5V, IL = 100 mA  
VR 2.5V, IL = 300 mA  
VR 2.5V, IL = 500 mA  
VR 2.5V, IL = 800 mA  
VR = 1.8V, IL = 500 mA  
IL = 800 mA  
50  
160  
480  
800  
1300  
1200  
1400  
130  
1
150  
260  
450  
1000  
1200  
80  
Supply Current  
IDD  
ISHDN  
µA  
µA  
SHDN = VIH, IL = 0  
SHDN = 0V  
Shutdown Supply Current  
Power Supply Rejection Ratio  
Output Short Circuit Current  
Thermal Regulation  
0.05  
64  
PSRR  
IOUTSC  
ΔVOUT/ΔPD  
eN  
db  
F 1 kHz  
1200  
0.04  
260  
1400  
mA  
V/W  
VOUT = 0V  
Note 6  
Output Noise  
nV/Hz IL = IOUTMAX, F = 10 kHZ  
Note 1: VR is the regulator output voltage setting.  
2: The minimum VIN has to justify the conditions: VIN VR + VDROPOUT and VIN 2.7V for IL = 0.1 mA to IOUTMAX  
.
(VOUTMAX VOUTMIN) – 106  
3:  
TCVOUT = -------------------------------------------------------------------------  
VOUT × ΔT  
4: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested  
over a load range from 0.1 mA to the maximum specified output current. Changes in output voltage due to heating effects  
are covered by the thermal regulation specification.  
5: Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value  
measured at a 1.5V differential.  
6: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied,  
excluding load or line regulation effects. Specifications are for a current pulse equal to ILMAX at VIN = 6V for T = 10 ms.  
7: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temper-  
ature and the thermal resistance from junction-to-air (i.e., TA, TJ, θJA). Exceeding the maximum allowable power dissipa-  
tion causes the device to initiate thermal shutdown. Please see Section 5.0 “Thermal Considerations” for more details.  
8: Hysteresis voltage is referenced to VR.  
DS21376D-page 2  
© 2006 Microchip Technology Inc.  
TC1265  
DC CHARACTERISTICS (CONTINUED)  
Electrical Specifications: Unless otherwise indicated, VIN = VR + 1.5V, (Note 1), IL = 100 µA, CL = 3.3 µF,  
SHDN > VIH, TA = +25°C. Boldface type specifications apply for junction temperatures of -40°C to +125°C.  
Parameters  
SHDN Input  
Sym  
Min  
Typ  
Max  
Units  
Conditions  
SHDN Input High Threshold  
SHDN Input Low Threshold  
ERROR Output (SOIC Only)  
Minimum Operating Voltage  
Output Logic Low Voltage  
ERROR Threshold Voltage  
ERROR Positive Hysteresis  
VIH  
VIL  
45  
%VIN  
%VIN  
15  
VMIN  
VOL  
1.0  
400  
V
mV  
V
1 mA Flows to ERROR  
VTH  
0.95 x VR  
50  
VHYS  
mV  
Note 8  
Note 1: VR is the regulator output voltage setting.  
2: The minimum VIN has to justify the conditions: VIN VR + VDROPOUT and VIN 2.7V for IL = 0.1 mA to IOUTMAX  
.
(VOUTMAX VOUTMIN) – 106  
3:  
TCVOUT = -------------------------------------------------------------------------  
VOUT × ΔT  
4: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested  
over a load range from 0.1 mA to the maximum specified output current. Changes in output voltage due to heating effects  
are covered by the thermal regulation specification.  
5: Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value  
measured at a 1.5V differential.  
6: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied,  
excluding load or line regulation effects. Specifications are for a current pulse equal to ILMAX at VIN = 6V for T = 10 ms.  
7: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temper-  
ature and the thermal resistance from junction-to-air (i.e., TA, TJ, θJA). Exceeding the maximum allowable power dissipa-  
tion causes the device to initiate thermal shutdown. Please see Section 5.0 “Thermal Considerations” for more details.  
8: Hysteresis voltage is referenced to VR.  
TEMPERATURE CHARACTERISTICS  
Electrical Specifications: Unless otherwise indicated, VIN = VR + 1.5V, IL = 100 µA, CL = 3.3 µF,  
SHDN > VIH, TA = +25°C.  
Parameters  
Temperature Ranges  
Sym  
Min  
Typ  
Max  
Units  
Conditions  
Specified Temperature Range  
Operating Temperature Range  
Storage Temperature Range  
Thermal Package Resistances  
Thermal Resistance, 5L-DDPAK  
Thermal Resistance, 5L-TO-220  
Thermal Resistance, 8L-SOIC  
TA  
TJ  
TA  
-40  
-40  
-65  
+125  
+125  
+150  
°C  
°C  
°C  
(Note 1)  
θJA  
θJA  
θJA  
57  
71  
°C/W  
°C/W  
°C/W  
163  
Note 1: Operation in this range must not cause TJ to exceed Maximum Junction Temperature (+125°C).  
© 2006 Microchip Technology Inc.  
DS21376D-page 3  
TC1265  
2.0  
TYPICAL PERFORMANCE CURVES  
Note:  
The graphs and tables provided following this note are a statistical summary based on a limited number of  
samples and are provided for informational purposes only. The performance characteristics listed herein  
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified  
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.  
0
.
020  
150  
135  
0
.
018  
0
.
016  
014  
012  
120  
105  
90  
0
0
.
.
V
= 3V  
OUT  
0
0
.
010  
008  
75  
.
60  
0
.
006  
45  
0
.
004  
30  
0
.
002  
15  
0
0
.
000  
-
40  
°C  
0
°C  
25°C  
70°  
C
85°  
C
125  
°
C
-40°C 0°C  
25°C 70°C 85°C 125°C  
TEMPERATURE (°C)  
TE  
M
PERA  
TUR  
E (°C)  
FIGURE 2-1:  
Line Regulation vs.  
FIGURE 2-4:  
I
vs. Temperature.  
DD  
Temperature.  
0.600  
0.550  
0.500  
0.450  
0.400  
10.0  
125°C  
85  
70  
25  
°C  
R
C
= 50Ω  
LOAD  
= 1  
µ
F
OUT  
°
C
°
C
1.0  
0.350  
0.300  
0.250  
0.200  
0.150  
0.100  
0.050  
0.000  
0°C  
0.1  
0.0  
-40°C  
400 500 600 700 800  
(mA)  
0
100  
200 300  
I
0.01  
10  
FREQUENCY (kHz)  
0.01  
1
100  
1000  
LOAD  
FIGURE 2-5:  
3.0V Dropout Voltage vs.  
FIGURE 2-2:  
Output Noise vs. Frequency.  
I
.
LOAD  
0.0100  
0.0090  
0.0080  
0.0070  
0.0060  
0.0050  
0.0040  
0.0030  
3.030  
I
=
0
.
1
m
A
LOAD  
3
3
.
020  
010  
000  
.
3
.
I
=
=
300  
500  
m
m
A
A
LOAD  
LOAD  
2
2
.
990  
980  
.
.
.
.
I
V
= 3V  
OUT  
1 mA to 800 mA  
2
2
2
970  
960  
950  
I
=
800mA  
LOAD  
0.0020  
0.0010  
0.0100  
2
2
2
.
940  
930  
920  
.
.
-40°C  
-
40  
°C  
0
°C  
25°C  
70°C  
85°C 125°C  
0°C  
25°C 70°C  
85°C 125°C  
TEMPERATURE (°C)  
TEM  
PERA  
T
UR  
E (°C)  
FIGURE 2-3:  
Load Regulation vs.  
FIGURE 2-6:  
3.0V V  
vs.Temperature.  
OUT  
Temperature.  
DS21376D-page 4  
© 2006 Microchip Technology Inc.  
TC1265  
2.0  
TYPICAL PERFORMANCE CURVES (CONT)  
0.090  
0.080  
0.070  
0.060  
0.050  
0.040  
0.030  
0.020  
0.010  
0.000  
-40°C 0°C  
25°C 70°C  
85°C 125°C  
TEMPERATURE (°C)  
FIGURE 2-1:  
I
vs. Temperature.  
SHDN  
© 2006 Microchip Technology Inc.  
DS21376D-page 5  
TC1265  
3.0  
PIN DESCRIPTIONS  
The descriptions of the pins are listed in Table 3-1.  
TABLE 3-1:  
PIN FUNCTION TABLE  
Pin No.  
Pin No.  
(8-Pin SOIC)  
(5-Pin DDPAK)  
(5-Pin TO-220)  
Symbol  
Description  
1
2
3
4
5
6
7
8
5
3
VOUT  
GND  
NC  
Regulated voltage output  
Ground terminal  
No connect  
1
BYPASS Reference bypass input  
ERROR Out-of-Regulation Flag (open-drain output)  
2
SHDN  
NC  
Shutdown control input  
No connect  
4
VIN  
Unregulated supply input  
3.1  
Regulated Output Voltage (VOUT  
)
3.4  
Out-of-Regulation Flag (ERROR)  
Regulated voltage output.  
Out-of-regulation flag (open-drain output). This output  
goes low when VOUT is out-of-tolerance by  
approximately -5%.  
3.2  
Ground (GND)  
Ground terminal.  
3.5  
Shutdown Control (SHDN)  
Shutdown control input. The regulator is fully enabled  
when a logic-high is applied to this input. The regulator  
enters shutdown when a logic-low is applied to this  
input. During shutdown, the output voltage falls to zero  
and the supply current is reduced to 0.05 µA (typical).  
3.3  
Reference Bypass (BYPASS)  
Reference bypass input. Connecting a 470 pF to this  
input further reduces output noise.  
3.6  
Unregulated Supply (VIN)  
Unregulated supply input.  
DS21376D-page 6  
© 2006 Microchip Technology Inc.  
TC1265  
4.2  
ERROR Output  
4.0  
DETAILED DESCRIPTION  
ERROR is driven low whenever VOUT falls out of  
regulation by more than – 5% (typ.). This condition may  
be caused by low input voltage, output current limiting,  
or thermal limiting. The ERROR threshold is 5% below  
rated VOUT regardless of the programmed output  
voltage value (e.g., ERROR = VOL at 4.75V (typ.) for a  
5.0V regulator and 2.85V (typ.) for a 3.0V regulator).  
ERROR output operation is shown in Figure 4-2.  
The TC1265 is a precision, fixed-output LDO. Unlike  
bipolar regulators, the TC1265’s supply current does  
not increase with load current. In addition, VOUT  
remains stable and within regulation over the entire  
0 mA to ILOADMAX load current range (an important  
consideration in RTC and CMOS RAM battery back-up  
applications).  
Figure 4-1 shows a typical application circuit.  
Note that ERROR is active when VOUT is at or below  
VTH and inactive when VOUT is above VTH + VH.  
V
V
V
OUT  
IN  
OUT  
As shown in Figure 4-1, ERROR can be used as a  
battery low flag or as a processor RESET signal (with  
the addition of timing capacitor C3). R1 x C3 should be  
chosen to maintain ERROR below VIH of the processor  
RESET input for at least 200 ms to allow time for the  
system to stabilize. Pull-up resistor R1 can be tied to  
VOUT, VIN or any other voltage less than (VIN + 0.3V).  
+
+
1 µF  
2
1 µF  
1
+
C
C
TC1265  
Battery  
GND  
+
V
SHDN  
ERROR  
R
1
Shutdown Control  
(to CMOS Logic or Tie  
1 M  
C
Required Only  
BATTLOW  
or RESET  
to V , if unused)  
3
IN  
V
if ERROR is used as a  
Processor RESET Signal  
(See Text)  
OUT  
+
0.2 µF  
C
3
Hysteresis (V )  
H
V
TH  
FIGURE 4-1:  
Typical Application Circuit.  
ERROR  
V
IH  
4.1  
Output Capacitor  
V
OL  
A 1 µF (min.) capacitor from VOUT to ground is  
required. The output capacitor should have an Effective  
Series Resistance (ESR) greater than 0.1Ω and less  
than 5Ω. A 1 µF capacitor should be connected from  
VIN to GND if there is more than 10 inches of wire  
between the regulator and the AC filter capacitor, or if a  
battery is used as the power source. Aluminum electro-  
lytic or tantalum capacitor types can be used. Since  
many aluminum electrolytic capacitors freeze at  
FIGURE 4-2:  
ERROR Output Operation.  
approximately  
-30°C,  
solid  
tantalums  
are  
recommended for applications operating below -25°C.  
When operating from sources other than batteries,  
supply-noise rejection and transient response can be  
improved by increasing the value of the input and  
output capacitors, and by employing passive filtering  
techniques.  
© 2006 Microchip Technology Inc.  
DS21376D-page 7  
TC1265  
TABLE 5-2:  
THERMAL RESISTANCE  
GUIDELINES FOR TC1265 IN  
5-PIN DDPAK/TO-220  
PACKAGE  
5.0  
5.1  
THERMAL CONSIDERATIONS  
Thermal Shutdown  
Integrated thermal protection circuitry shuts the  
regulator off when die temperature exceeds 160°C.  
The regulator remains off until the die temperature  
drops to approximately 150°C.  
Copper  
Area  
(Topside)*  
Copper  
Area  
Thermal  
Resistance  
Board  
Area  
(Backside)  
(θ  
)
JA  
2500 sq mm 2500 sq mm 2500 sq mm  
1000 sq mm 2500 sq mm 2500 sq mm  
125 sq mm 2500 sq mm 2500 sq mm  
* Tab of device attached to top-side copper  
25°C/W  
27°C/W  
35°C/W  
5.2  
Power Dissipation  
The amount of power the regulator dissipates is  
primarily a function of input voltage, output voltage and  
output current. The following equation is used to  
calculate worst-case actual power dissipation:  
Equation 5-1 can be used in conjunction with  
Equation 5-2 to ensure regulator thermal operation is  
within limits. For example:  
EQUATION 5-1:  
Given:  
PD = (VINMAX VOUTMIN)ILOADMAX  
VINMAX = 3.3V ± 10%  
VOUTMIN = 2.7V ± 0.5%  
ILOADMAX = 275 mA  
TJMAX = 125°C  
Where:  
PD = Worst-case actual power dissipation  
= Maximum voltage on VIN  
VINMAX  
VOUTMIN = Minimum regulator output voltage  
ILOADMAX = Maximum output (load) current  
TAMAX = 95°C  
θJA = 60°C/W (SOIC)  
The  
maximum  
allowable  
power  
dissipation  
Find:  
(Equation 5-2) is a function of the maximum ambient  
temperature (TAMAX), the maximum allowable die  
temperature (TJMAX) and the thermal resistance from  
junction-to-air (θJA).  
1. Actual power dissipation  
2. Maximum allowable dissipation  
Actual power dissipation:  
PD ≈ (VINMAX VOUTMIN)ILOADMAX  
PD = (3.3 × 1.1) (2.7 × .995)275 × 10–3  
PD = 260 mW  
EQUATION 5-2:  
TJMAX TAMAX  
PDMAX = --------------------------------------  
θJA  
Where:  
PD = Worst-case actual power dissipation  
Maximum allowable power dissipation:  
= Maximum voltage on VIN  
VOUTMIN = Minimum regulator output voltage  
ILOADMAX = Maximum output (load) current  
VINMAX  
TJMAX TAMAX  
PDMAX = --------------------------------------  
θJA  
(125 – 95)  
PDMAX = -------------------------  
60  
Table 5-1 and Table 5-2 show various values of θJA for  
the TC1265 package types.  
PDMAX = 500 mW  
In this example, the TC1265 dissipates a maximum of  
260 mW, below the allowable limit of 500 mW. In a  
similar manner, Equation 5-1 and Equation 5-2 can be  
used to calculate maximum current and/or input  
voltage limits. For example, the maximum allowable  
VIN is found by substituting the maximum allowable  
power dissipation of 500 mW into Equation 5-1, from  
which VINMAX = 4.6V.  
TABLE 5-1:  
THERMAL RESISTANCE  
GUIDELINES FOR TC1265 IN  
8-PIN SOIC PACKAGE  
Copper  
Area  
(Topside)*  
Copper  
Area  
(Backside)  
Thermal  
Resistance  
Board  
Area  
JA)  
2500 sq mm 2500 sq mm 2500 sq mm  
1000 sq mm 2500 sq mm 2500 sq mm  
60°C/W  
60°C/W  
68°C/W  
74°C/W  
225 sq mm  
100 sq mm  
2500 sq mm 2500 sq mm  
2500 sq mm 2500 sq mm  
* Pin 2 is ground. Device is mounted on the top-side.  
DS21376D-page 8  
© 2006 Microchip Technology Inc.  
TC1265  
6.0  
6.1  
PACKAGING INFORMATION  
Package Marking Information  
5-Lead DDPAK  
Example  
XXXXXXXXX  
XXXXXXXXX  
YYWWNNN  
TC1265  
3.3VET  
0642256  
5-Lead TO-220  
Example:  
TC1265  
3.3VAT^
0642256  
XXXXXXXXX  
XXXXXXXXX  
YYWWNNN  
e
3
8-Lead SOIC (150 mil)  
Example:  
XXXXXXXX  
XXXXYYWW  
1265-33V  
e
3
OA^0642  
NNN  
256  
Legend: XX...X Customer-specific information  
Y
YY  
WW  
NNN  
Year code (last digit of calendar year)  
Year code (last 2 digits of calendar year)  
Week code (week of January 1 is week ‘01’)  
Alphanumeric traceability code  
e
3
Pb-free JEDEC designator for Matte Tin (Sn)  
*
This package is Pb-free. The Pb-free JEDEC designator (  
can be found on the outer packaging for this package.  
)
e3  
Note: In the event the full Microchip part number cannot be marked on one line, it will  
be carried over to the next line, thus limiting the number of available  
characters for customer-specific information.  
© 2006 Microchip Technology Inc.  
DS21376D-page 9  
TC1265  
5-Lead Plastic (ET) (DDPAK) )  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
E
L3  
E1  
D2  
D
D1  
1
e
b
BOTTOM VIEW  
α
TOP VIEW  
(5X)  
c2  
A
Φ
A1  
c
L
Units  
Dimension Limits  
INCHES  
NOM  
*
MILLIMETERS  
MIN  
MAX  
MIN  
NOM  
5
MAX  
Number of Pins  
Pitch  
5
e
.067 BSC  
1.70 BSC  
4.50  
Overall Height  
Standoff  
A
A1  
E
.170  
.000  
.385  
.177  
.005  
.398  
.183  
4.32  
0.00  
9.78  
4.65  
§
.010  
.410  
0.13  
0.25  
Overall Width  
10.11  
6.50 REF  
8.89  
10.41  
Exposed Pad Width  
Molded Package Length  
Overall Length  
Exposed Pad Length  
Lead Thickness  
Pad Thickness  
Lead Width  
E1  
D
.256 REF  
.330  
.549  
.350  
.577  
.370  
.605  
8.38  
9.40  
D1  
D2  
c
13.94  
14.66  
7.75 REF  
0.51  
15.37  
.303 REF  
.014  
.045  
.026  
.068  
.045  
--  
.020  
--  
.026  
.055  
.037  
.110  
.067  
0.36  
1.14  
0.66  
1.73  
1.14  
--  
0.66  
1.40  
0.94  
2.79  
1.70  
c2  
b
--  
.032  
.089  
--  
0.81  
Foot Length  
L
2.26  
Pad Length  
L3  
Φ
α
--  
Foot Angle  
--  
8°  
7°  
--  
8°  
7°  
Mold Draft Angle  
3°  
--  
3°  
--  
*
Controlling Parameter  
§
Significant Characteristic  
Notes:  
Dimensions D and E do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side.  
BSC: Basic Dimension. Theoretically exact value shown without tolerances.  
See ASME Y14.5M  
REF: Reference Dimension, usually without tolerance, for information purposes only.  
See ASME Y14.5M  
JEDEC equivalent: TO-252  
Drawing No. C04-012  
Revised 07-19-05  
DS21376D-page 10  
© 2006 Microchip Technology Inc.  
TC1265  
5-Lead Plastic Transistor Outline (AT) (TO-220)  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
L
H1  
Q
β
e3  
e1  
E
e
EJECTOR PIN  
ØP  
(5°)  
α
C1  
A
J1  
F
D
Units  
e
INCHES  
MIN  
.060  
.263  
.030  
.160  
.385  
.560  
.234  
.045  
.103  
.146  
.540  
.090  
.014  
.025  
3°  
*
MILLIMETERS  
MIN  
Dimension Limits  
MAX  
.072  
.273  
.040  
.190  
.415  
.590  
.258  
.055  
.113  
.156  
.560  
.115  
.022  
.040  
7°  
MAX  
1.83  
6.93  
1.02  
4.83  
10.54  
14.99  
6.55  
1.40  
2.87  
3.96  
14.22  
2.92  
0.56  
1.02  
7°  
Lead Pitch  
1.52  
Overall Lead Centers  
Space Between Leads  
Overall Height  
e1  
e3  
A
6.68  
0.76  
4.06  
Overall Width  
E
9.78  
Overall Length  
D
14.22  
5.94  
Flag Length  
H1  
F
Flag Thickness  
Through Hole Center  
Through Hole Diameter  
Lead Length  
1.14  
Q
P
2.62  
3.71  
L
J1  
C1  
β
13.72  
2.29  
Base to Bottom of Lead  
Lead Thickness  
Lead Width  
0.36  
0.64  
α
Mold Draft Angle  
3°  
*
Controlling Parameter  
Notes:  
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254 mm) per side.  
JEDEC equivalent: TO-220  
Drawing No. C04-036  
Revised 08-01-05  
© 2006 Microchip Technology Inc.  
DS21376D-page 11  
TC1265  
8-Lead Plastic Small Outline (SN) – Narrow, 150 mil Body (SOIC)  
Note: For the most current package drawings, please see the Microchip Packaging Specification located at  
http://www.microchip.com/packaging  
E
E1  
p
D
2
B
n
1
h
α
45°  
c
A2  
A
φ
β
L
A1  
Units  
INCHES*  
MILLIMETERS  
Dimension Limits  
MIN  
NOM  
8
MAX  
MIN  
NOM  
8
MAX  
n
p
Number of Pins  
Pitch  
.050  
1.27  
Overall Height  
A
.053  
.061  
.056  
.007  
.237  
.154  
.193  
.015  
.025  
4
.069  
1.35  
1.32  
1.55  
1.42  
0.18  
6.02  
3.91  
4.90  
0.38  
0.62  
4
1.75  
Molded Package Thickness  
Standoff  
A2  
A1  
E
.052  
.004  
.228  
.146  
.189  
.010  
.019  
0
.061  
.010  
.244  
.157  
.197  
.020  
.030  
8
1.55  
0.25  
6.20  
3.99  
5.00  
0.51  
0.76  
8
§
0.10  
5.79  
3.71  
4.80  
0.25  
0.48  
0
Overall Width  
Molded Package Width  
Overall Length  
E1  
D
Chamfer Distance  
Foot Length  
h
L
φ
Foot Angle  
c
Lead Thickness  
Lead Width  
.008  
.013  
0
.009  
.017  
12  
.010  
.020  
15  
0.20  
0.33  
0
0.23  
0.42  
12  
0.25  
0.51  
15  
B
α
β
Mold Draft Angle Top  
Mold Draft Angle Bottom  
0
12  
15  
0
12  
15  
* Controlling Parameter  
§ Significant Characteristic  
Notes:  
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed  
.010” (0.254mm) per side.  
JEDEC Equivalent: MS-012  
Drawing No. C04-057  
DS21376D-page 12  
© 2006 Microchip Technology Inc.  
TC1265  
APPENDIX A: REVISION HISTORY  
Revision D (October 2006)  
Section 1.0 “Electrical Characteristics”:  
Changed dropout voltage voltage typical value for  
IL = 500 mA from 700 to 1000 and maximum  
value from 1000 to 1200 for. Changed typical  
value for IL = 800 mA from 890 to 1200  
Section 6.0 “Packaging Information”: Added  
pb-free symbol to package marking information  
• Added disclaimer to package outline drawings  
• Updated package outline drawings as needed  
• Added Appendix A - Revision History  
Revision C (October 2004)  
• Not Documented  
Revision B (May 2002)  
• Not Documented  
Revision A (March 2002)  
• Original Release of this Document.  
© 2006 Microchip Technology Inc.  
DS21376D-page 13  
TC1265  
NOTES:  
DS21376D-page 14  
© 2006 Microchip Technology Inc.  
TC1265  
PRODUCT IDENTIFICATION SYSTEM  
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.  
Examples:  
PART NO.  
Device  
X.XX  
XX  
XX  
a)  
b)  
c)  
d)  
TC1265-1.8VAT  
1.8V LDO, TO-220-5 pkg.  
2.5V LDO, TO-220-5 pkg.  
3.0V LDO, TO-220-5 pkg.  
3.3V LDO, TO-220-5 pkg.  
Voltage  
Option  
Package  
Tape and  
Reel  
TC1265-2.5VAT  
TC1265-3.0VAT  
TC1265-3.3VAT  
a)  
b)  
TC1265-1.8VETTR 1.8V LDO, DDPAK-5 pkg.,  
Tape and Reel  
TC1265-2.5VETTR 2.5V LDO, DDPAK-5 pkg.,  
Tape and Reel  
TC1265-3.0VETTR 3.0V LDO, DDPAK-5 pkg.,  
Tape and Reel  
TC1265-3.3VETTR 3.3V LDO, DDPAK-5 pkg.,  
Tape and Reel  
Device  
TC1265 Fixed Output CMOS LDO with Shutdown  
Voltage Option:*  
1.8V  
2.5V  
3.0V  
3.3V  
=
=
=
=
1.8V  
2.5V  
3.0V  
3.3V  
c)  
d)  
* Other output voltages are available. Please contact your local  
Microchip sales office for details.  
a)  
b)  
TC1265-1.8VOA  
1.8V LDO, SOIC-8 pkg.  
TC1265-1.8VOATR 1.8V LDO, SOIC-8 pkg.,  
Tape and Reel  
Package  
AT  
=
=
=
Plastic (TO-220), 5-Lead  
c)  
d)  
TC1265-2.5VOA  
2.5V LDO, SOIC-8 pkg.  
ET  
Plastic Transistor Outline (DDPAK), 5-Lead  
Plastic Transistor Outline (DDPAK), 5-Lead,  
Tape and Reel  
TC1265-2.5VOATR 2.5V LDO, SOIC-8 pkg.,  
Tape and Reel  
ETTR  
OA  
OATR  
=
=
Plastic SOIC, (150 mil Body), 8-lead  
Plastic SOIC, (150 mil Body), 8-lead,  
Tape and Reel  
e)  
f)  
TC1265-3.0VOA  
3.0V LDO, SOIC-8 pkg.  
TC1265-3.0VOATR 3.0V LDO, SOIC-8 pkg.,  
Tape and Reel  
g)  
h)  
TC1265-3.3VOA  
TC1265-3.3VOATR 3.3V LDO, SOIC-8 pkg.,  
Tape and Reel  
3.3V LDO, SOIC-8 pkg.  
© 2006 Microchip Technology Inc.  
DS21376D-page 15  
TC1265  
NOTES:  
DS21376D-page 16  
© 2006 Microchip Technology Inc.  
Note the following details of the code protection feature on Microchip devices:  
Microchip products meet the specification contained in their particular Microchip Data Sheet.  
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the  
intended manner and under normal conditions.  
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our  
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data  
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.  
Microchip is willing to work with the customer who is concerned about the integrity of their code.  
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not  
mean that we are guaranteeing the product as “unbreakable.”  
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our  
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts  
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.  
Information contained in this publication regarding device  
applications and the like is provided only for your convenience  
and may be superseded by updates. It is your responsibility to  
ensure that your application meets with your specifications.  
MICROCHIP MAKES NO REPRESENTATIONS OR  
WARRANTIES OF ANY KIND WHETHER EXPRESS OR  
IMPLIED, WRITTEN OR ORAL, STATUTORY OR  
OTHERWISE, RELATED TO THE INFORMATION,  
INCLUDING BUT NOT LIMITED TO ITS CONDITION,  
QUALITY, PERFORMANCE, MERCHANTABILITY OR  
FITNESS FOR PURPOSE. Microchip disclaims all liability  
arising from this information and its use. Use of Microchip  
devices in life support and/or safety applications is entirely at  
the buyer’s risk, and the buyer agrees to defend, indemnify and  
hold harmless Microchip from any and all damages, claims,  
suits, or expenses resulting from such use. No licenses are  
conveyed, implicitly or otherwise, under any Microchip  
intellectual property rights.  
Trademarks  
The Microchip name and logo, the Microchip logo, Accuron,  
dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART,  
PRO MATE, PowerSmart, rfPIC, and SmartShunt are  
registered trademarks of Microchip Technology Incorporated  
in the U.S.A. and other countries.  
AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB,  
SEEVAL, SmartSensor and The Embedded Control Solutions  
Company are registered trademarks of Microchip Technology  
Incorporated in the U.S.A.  
Analog-for-the-Digital Age, Application Maestro, CodeGuard,  
dsPICDEM, dsPICDEM.net, dsPICworks, ECAN,  
ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,  
In-Circuit Serial Programming, ICSP, ICEPIC, Linear Active  
Thermistor, Mindi, MiWi, MPASM, MPLIB, MPLINK, PICkit,  
PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal,  
PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB,  
rfPICDEM, Select Mode, Smart Serial, SmartTel, Total  
Endurance, UNI/O, WiperLock and ZENA are trademarks of  
Microchip Technology Incorporated in the U.S.A. and other  
countries.  
SQTP is a service mark of Microchip Technology Incorporated  
in the U.S.A.  
All other trademarks mentioned herein are property of their  
respective companies.  
© 2006, Microchip Technology Incorporated, Printed in the  
U.S.A., All Rights Reserved.  
Printed on recycled paper.  
Microchip received ISO/TS-16949:2002 certification for its worldwide  
headquarters, design and wafer fabrication facilities in Chandler and  
Tempe, Arizona, Gresham, Oregon and Mountain View, California. The  
Company’s quality system processes and procedures are for its PIC®  
8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs,  
microperipherals, nonvolatile memory and analog products. In addition,  
Microchip’s quality system for the design and manufacture of  
development systems is ISO 9001:2000 certified.  
© 2006 Microchip Technology Inc.  
DS21376D-page 17  
WORLDWIDE SALES AND SERVICE  
AMERICAS  
ASIA/PACIFIC  
ASIA/PACIFIC  
EUROPE  
Corporate Office  
Asia Pacific Office  
Suites 3707-14, 37th Floor  
Tower 6, The Gateway  
Habour City, Kowloon  
Hong Kong  
Tel: 852-2401-1200  
Fax: 852-2401-3431  
India - Bangalore  
Tel: 91-80-4182-8400  
Fax: 91-80-4182-8422  
Austria - Wels  
Tel: 43-7242-2244-39  
Fax: 43-7242-2244-393  
2355 West Chandler Blvd.  
Chandler, AZ 85224-6199  
Tel: 480-792-7200  
Fax: 480-792-7277  
Technical Support:  
http://support.microchip.com  
Web Address:  
www.microchip.com  
Denmark - Copenhagen  
Tel: 45-4450-2828  
Fax: 45-4485-2829  
India - New Delhi  
Tel: 91-11-4160-8631  
Fax: 91-11-4160-8632  
France - Paris  
Tel: 33-1-69-53-63-20  
Fax: 33-1-69-30-90-79  
India - Pune  
Tel: 91-20-2566-1512  
Fax: 91-20-2566-1513  
Australia - Sydney  
Tel: 61-2-9868-6733  
Fax: 61-2-9868-6755  
Atlanta  
Germany - Munich  
Tel: 49-89-627-144-0  
Fax: 49-89-627-144-44  
Japan - Yokohama  
Tel: 81-45-471- 6166  
Fax: 81-45-471-6122  
Alpharetta, GA  
Tel: 770-640-0034  
Fax: 770-640-0307  
China - Beijing  
Tel: 86-10-8528-2100  
Fax: 86-10-8528-2104  
Italy - Milan  
Tel: 39-0331-742611  
Fax: 39-0331-466781  
Korea - Gumi  
Tel: 82-54-473-4301  
Fax: 82-54-473-4302  
Boston  
China - Chengdu  
Tel: 86-28-8665-5511  
Fax: 86-28-8665-7889  
Westborough, MA  
Tel: 774-760-0087  
Fax: 774-760-0088  
Netherlands - Drunen  
Tel: 31-416-690399  
Fax: 31-416-690340  
Korea - Seoul  
China - Fuzhou  
Tel: 86-591-8750-3506  
Fax: 86-591-8750-3521  
Tel: 82-2-554-7200  
Fax: 82-2-558-5932 or  
82-2-558-5934  
Chicago  
Itasca, IL  
Tel: 630-285-0071  
Fax: 630-285-0075  
Spain - Madrid  
Tel: 34-91-708-08-90  
Fax: 34-91-708-08-91  
China - Hong Kong SAR  
Tel: 852-2401-1200  
Fax: 852-2401-3431  
Malaysia - Penang  
Tel: 60-4-646-8870  
Fax: 60-4-646-5086  
Dallas  
Addison, TX  
Tel: 972-818-7423  
Fax: 972-818-2924  
UK - Wokingham  
Tel: 44-118-921-5869  
Fax: 44-118-921-5820  
China - Qingdao  
Tel: 86-532-8502-7355  
Fax: 86-532-8502-7205  
Philippines - Manila  
Tel: 63-2-634-9065  
Fax: 63-2-634-9069  
Detroit  
Farmington Hills, MI  
Tel: 248-538-2250  
Fax: 248-538-2260  
China - Shanghai  
Tel: 86-21-5407-5533  
Fax: 86-21-5407-5066  
Singapore  
Tel: 65-6334-8870  
Fax: 65-6334-8850  
Kokomo  
Kokomo, IN  
Tel: 765-864-8360  
Fax: 765-864-8387  
China - Shenyang  
Tel: 86-24-2334-2829  
Fax: 86-24-2334-2393  
Taiwan - Hsin Chu  
Tel: 886-3-572-9526  
Fax: 886-3-572-6459  
China - Shenzhen  
Tel: 86-755-8203-2660  
Fax: 86-755-8203-1760  
Taiwan - Kaohsiung  
Tel: 886-7-536-4818  
Fax: 886-7-536-4803  
Los Angeles  
Mission Viejo, CA  
Tel: 949-462-9523  
Fax: 949-462-9608  
China - Shunde  
Tel: 86-757-2839-5507  
Fax: 86-757-2839-5571  
Taiwan - Taipei  
Tel: 886-2-2500-6610  
Fax: 886-2-2508-0102  
Santa Clara  
Santa Clara, CA  
Tel: 408-961-6444  
Fax: 408-961-6445  
China - Wuhan  
Tel: 86-27-5980-5300  
Fax: 86-27-5980-5118  
Thailand - Bangkok  
Tel: 66-2-694-1351  
Fax: 66-2-694-1350  
Toronto  
Mississauga, Ontario,  
Canada  
Tel: 905-673-0699  
Fax: 905-673-6509  
China - Xian  
Tel: 86-29-8833-7250  
Fax: 86-29-8833-7256  
10/19/06  
DS21376D-page 18  
© 2006 Microchip Technology Inc.  

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