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SC4436RTRT [SEMTECH]

Three Terminal Voltage Reference, 1 Output, 0.6V, Trim/Adjustable, PDSO5, ROHS COMPLIANT, MO-203AA, SC-70, 5 PIN;
SC4436RTRT
型号： SC4436RTRT
厂家： SEMTECH CORPORATION    SEMTECH CORPORATION
描述：

Three Terminal Voltage Reference, 1 Output, 0.6V, Trim/Adjustable, PDSO5, ROHS COMPLIANT, MO-203AA, SC-70, 5 PIN

光电二极管 输出元件
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中文：  中文翻译
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SC4436  
0.6V Precision  
Voltage Reference  
PRELIMINARY  
POWER MANAGEMENT  
Description  
Features  
‹ Sub 1V reference (0.6V)  
The SC4436 is a five terminal device for voltage regula-  
tion or over voltage protection of an isolated power sup- ‹ Trimmed bandgap design  
ply with output voltages down to 600mV.  
‹ Very low operating current (10µA)  
‹ Wide supply voltage range (2V to 30V)  
‹ Unconditionally stable  
It is intended to be used as a replacement for three  
terminal shunt regulators such as SC431L where the  
output voltage is too low for the device to function in  
‹ Very low temperature coefficient (20 ppm/°C Typ.)  
conjunction with an opto-isolator. SC4436 achieves this ‹ Industrial temperature range  
by having seperate supply and output pins, allowing the  
output to sink 20mA of current at voltages ranging from  
0.2V to 30V, while the supply pin still has sufficient volt-  
age for the device to function. In this way, allowing for a  
1.4V drop through an opto-isolator diode, regulation  
down to 600mV out can be achieved.  
‹ Available in space-saving SC-70 package  
Applications  
‹ Telecom Power Supplies  
‹ Servers and workstation Supplies  
‹ Secondary side regulation for very low output  
voltage power supplies  
‹ Opto driver for very low output voltage  
Isolated power supplies  
The SC4436 shunt regulator is available with initial ref-  
erence voltage accuracies of 0.5% in the space saving  
5 lead SC-70.  
‹ Battery operated applications  
‹ Point of use power supplies  
Typical Application Circuit  
T1  
Primary Side  
Controller  
Secondary Side  
Rectification  
VIN  
and Filtering  
Auxillary  
Supply  
R2  
C1  
R1  
U1  
R3  
R4  
SC4436  
IN  
OUT  
FB  
C2  
GND  
PGND  
C2 = Open to 100nF  
Revision November 29, 2004  
1
www.semtech.com  
SC4436  
POWER MANAGEMENT  
PRELIMINARY  
Absolute Maximum Ratings  
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters  
specified in the Electrical Characteristics section is not implied.  
Parameter  
Symbol  
VIN  
Maximum  
-0.3 to 35  
-0.3 to 35  
-0.3 to Vin+0.3V  
-0.3 to +0.3  
332  
Units  
V
Input Voltage to GND  
Output Voltage to GND  
VIOUT  
VFB  
V
Feedback Voltage to GND  
PGND to GND  
V
V
Thermal Impedance, Junction to Ambient  
Operating Ambient Temperature Range  
Operating Junction Temperature Range  
Storage Temperature Range  
Lead Temperature (Soldering) 10 seconds  
°C/W  
°C  
°C  
°C  
°C  
θJA  
TA  
-40 to +105  
-40 to +150  
-65 to +150  
300  
TJ  
TSTG  
TLEAD  
Electrical Characteristics  
Unless specified: Vin = 3.3V, Iout = 5mA, OUT = FB, Cin = 0.1uF, Cout = 1.0uF, TA = TJ = -40°C to 105°C.  
Parameter  
IN  
Symbol  
Conditions  
Min  
Typ  
Max Units  
Voltage Range  
Supply Current  
VIN  
2
30  
1
V
I
VIN = 2V to 30V  
IOUT = 0.3mA  
OUT = 10mA  
0.5  
0.8  
mA  
IN  
I
1.5  
FB  
FB Threshold Accuracy  
TA = +25°C  
0.597 0.600 0.603  
V
TA = -40°C to +105°C  
0.594  
0.6  
3.8  
0.2  
0.2  
12  
0.606  
FB Load Regulation  
IOUT = 1mA to 20mA  
6
1
mV  
mV  
mV  
nA  
FB Line Regulation  
VIN = 2V to 30V  
OUT = 0.2V to 18V, IOUT = 1mA  
VIN = 30V  
FB Output Voltage Regulation  
FB Input Bias Current  
V
1
IFB(BIAS)  
+100  
© 2004 Semtech Corp.  
2
www.semtech.com  
SC4436  
POWER MANAGEMENT  
PRELIMINARY  
Electrical Characteristics (Cont.)  
Unless specified: Vin = 3.3V, Iout = 5mA, OUT = FB, Cin = 0.1uF, Cout = 1.0uF, TA = TJ = -40°C to 105°C.  
Parameter  
Symbol  
Conditions  
Min  
Typ Max Units  
OUT  
Voltage Range  
Maximum Output Current  
VOUT  
0.2  
20  
30  
V
VOUT = 0.25V, VIN = 2V, VFB = 0.630V  
mA  
IOUT(MAX)  
Output Leakage Current  
IOUT(LEAK) VIN = 30V, VOUT = 30V, VFB = 0V  
0.001 0.1  
0.03  
µA  
TA = +25°C  
TA = +105°C  
Dynamic Output Impedance  
Dynamic Output Slew rate  
ZOUT  
IOUT = 1mA to 20mA, f < 1lHz  
0.2  
20  
0.32  
Ω
IOUT = 5mA, VIN = 3.3V, VFB = 0.63V  
V/µs  
© 2004 Semtech Corp.  
3
www.semtech.com  
SC4436  
POWER MANAGEMENT  
PRELIMINARY  
Pin Configuration  
Ordering Information  
TOP VIEW  
Part Number  
Package  
5 lead SC70  
Temp. Range (TA)  
SC4436RTRT(1)(2)  
-40 to +105 OC  
PGND  
GND  
OUT  
FB  
IN  
Note:  
(1) Only available in tape and reel packaging  
(Suffix ‘TR’ e.g. SC4436RTRT).  
(2) Lead free device, fully WEEE and RoHS compliant.  
(SC70 5 Lead)  
Pin Descriptions  
Pin #  
Pin Name  
Pin Function  
1
2
3
4
5
PGND  
GND  
OUT  
IN  
Power ground, should be connected to the GND right at the SC4436 IC pin.  
Analog ground, should be connected to the PGND right at the SC4436 IC pin.  
This is the output pin of the device, essentially an open collector.  
This is the input supply pin for the IC., should be bypassed with a 0.1uF capacitor to GND.  
This is connected to the non-inverting input of the error amplifier.  
FB  
Block Diagram  
Marking Information  
Top Mark  
IN  
OUT  
4436  
FB  
Bottom Mark  
yyww  
GND  
PGND  
yyww = Datecode (Example: 9908)  
© 2004 Semtech Corp.  
4
www.semtech.com  
SC4436  
POWER MANAGEMENT  
PRELIMINARY  
Outline Drawing - SC70-5L  
DIMENSIONS  
INCHES MILLIMETERS  
A
DIM  
A
MIN NOM MAX MIN NOM MAX  
e1  
-
-
-
-
-
-
D
E
.043  
.004 0.00  
1.10  
0.10  
A1 .000  
N
A2 .028 .035 .039 0.70 0.90 1.00  
-
-
-
-
b
c
D
.006  
.003  
.012 0.15  
.009 0.08  
0.30  
0.22  
2X E/2  
EI  
.075 .079 .083 1.90 2.00 2.10  
E1 .045 .049 .053 1.15 1.25 1.35  
E
e
e1  
L
.083 BSC  
.026 BSC  
.051  
2.10 BSC  
0.65 BSC  
1.30 BSC  
1
2
ccc C  
2X N/2 TIPS  
e
.010 .014 .018 0.26 0.36 0.46  
(.017)  
5
-
.004  
.004  
.012  
(0.42)  
5
-
0.10  
0.10  
0.30  
L1  
N
01  
aaa  
bbb  
ccc  
B
0°  
8°  
0°  
8°  
D
aaa C  
A2  
A
SEATING  
PLANE  
C
H
A1  
bxN  
bbb  
c
GAGE  
PLANE  
C A-B D  
0.15  
L
01  
(L1)  
SEE DETAIL  
A
DETAIL A  
SIDE VIEW  
NOTES:  
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).  
2. DATUMS -A- AND -B- TO BE DETERMINED AT DATUM PLANE -H-  
3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS  
OR GATE BURRS.  
4. REFERENCE JEDEC STD MO-203, VARIATION AA.  
Land Pattern - SC70-5L  
X
DIMENSIONS  
INCHES MILLIMETERS  
DIM  
(.073)  
.039  
.026  
.016  
.033  
.106  
(1.85)  
1.00  
0.65  
0.40  
0.85  
2.70  
C
G
P
X
Y
Z
C
G
Z
Y
P
NOTES:  
1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.  
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR  
COMPANY'S MANUFACTURING GUIDELINES ARE MET.  
© 2004 Semtech Corp.  
5
www.semtech.com  
SC4436  
POWER MANAGEMENT  
PRELIMINARY  
Contact Information  
Semtech Corporation  
Power Management Products Division  
200 Flynn Road, Camarillo, CA 93012  
Phone: (805)498-2111 FAX (805)498-3804  
© 2004 Semtech Corp.  
6
www.semtech.com  

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