NCV4264-2ST50T3G [ONSEMI]
Low IQ Low Dropout Linear Regulator; 低IQ低压降线性稳压器
| 型号： | NCV4264-2ST50T3G |
| 厂家： | 
ONSEMI |
| 描述： | Low IQ Low Dropout Linear Regulator |
| 文件： | 总11页 (文件大小：98K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NCV4264-2
Low IQ Low Dropout
Linear Regulator
The NCV4264-2 is functionally and pin for pin compatible with
NCV4264 with a lower quiescent current consumption. Its output
stage supplies 100 mA with "2.0% output voltage accuracy.
Maximum dropout voltage is 500 mV at 100 mA load current.
It is internally protected against 45 V input transients, input supply
reversal, output overcurrent faults, and excess die temperature. No
external components are required to enable these features.
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MARKING
DIAGRAM
TAB
Features
SOT-223
ST SUFFIX
CASE 318E
AYW
642xG
G
•ꢀ3.3 V and 5.0 V Fixed Output
•ꢀ"2.0% Output Accuracy, Over Full Temperature Range
•ꢀ60 mA Maximum Quiescent Current at I
2
3
1
1
= 100 mA
OUT
•ꢀ500 mV Maximum Dropout Voltage at 100 mA Load Current
•ꢀWide Input Voltage Operating Range of 4.5 V to 45 V
•ꢀAEC-Q100 Qualified
•ꢀInternal Fault Protection
♦ꢀ-42 V Reverse Voltage
♦ꢀShort Circuit/Overcurrent
♦ꢀThermal Overload
x
= 5 (5.0 V Version)
= 3 (3.3 V Version)
= Assembly Location
= Year
A
Y
W
G
= Work Week
= Pb-Free Package
(Note: Microdot may be in either location)
•ꢀNCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
PIN CONNECTIONS
TAB
•ꢀThis is a Pb-Free Device
1
V
IN
GND V
OUT
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
©ꢀ Semiconductor Components Industries, LLC, 2008
March, 2008 - Rev. 4
1
Publication Order Number:
NCV4264-2/D
NCV4264-2
IN
OUT
1.3 V
+
Reference
Error
Amp
-
Thermal
Shutdown
GND
Figure 1. Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
Symbol
Function
1
2
V
Unregulated input voltage; 4.5 V to 45 V.
Ground; substrate.
IN
GND
3
V
Regulated output voltage; collector of the internal PNP pass transistor.
Ground; substrate and best thermal connection to the die.
OUT
TAB
GND
OPERATING RANGE
Rating
Symbol
Min
4.5
Max
Unit
V
V
IN
+45
V , DC Input Operating Voltage
IN
Junction Temperature Operating Range
T
J
-40
+150
°C
MAXIMUM RATINGS
Rating
Symbol
Min
Max
Unit
V
IN
-42
+45
V
V , DC Input Voltage
IN
V
, DC Voltage
V
-0.3
-55
+18
V
°C
-
OUT
OUT
Storage Temperature
T
+150
stg
Moisture Sensitivity Level
MSL
3
ESD Capability, Human Body Model (Note 1)
ESD Capability, Machine Model (Note 1)
V
4000
200
-
-
V
ESDHB
V
V
ESDMIM
Lead Temperature Soldering
Reflow (SMD Styles Only), Lead Free (Note 2)
T
sld
°C
-
265 pk
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
RecommendedOperating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. This device series incorporates ESD protection and is tested by the following methods:
ꢁESD HBM tested per AEC-Q100-002 (EIA/JESD22-A 114C)
ꢁESD MM tested per AEC-Q100-003 (EIA/JESD22-A 115C)
2. Lead Free, 60 sec – 150 sec above 217°C, 40 sec max at peak.
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2
NCV4264-2
THERMAL RESISTANCE
Parameter
Symbol
Min
-
Max
99 (Note 3)
17
Unit
Junction-to-Ambient
Junction-to-Case
SOT-223
SOT-223
R
q
JA
°C/W
R
q
JC
-
ELECTRICAL CHARACTERISTICS (V = 13.5 V, T = -40°C to +150°C, unless otherwise noted.)
IN
J
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
Output Voltage
5.0 V Version
V
OUT
V
OUT
V
OUT
4.900
3.234
4.850
5.000
3.300
5.000
5.100
3.366
5.150
V
5.0 mA v I
v 50 mA (Note 4)
OUT
9.0 V v V v 16 V
IN
Output Voltage
3.3 V Version
V
V
5.0 mA v I
v 50 mA (Note 4)
OUT
9.0 V v V v 16 V
IN
Output Voltage
5.0 V Version
0 mA v I
v 100 mA (Note 4)
OUT
5.5 V v V v 21 V
IN
-40°C v T v 125°C
J
Output Voltage
5.0 V Version
V
V
4.850
3.201
5.000
3.300
5.150
3.399
V
V
OUT
5.0 mA v I
v 100 mA (Note 4)
OUT
6.0 V v V v 21 V
IN
Output Voltage
3.3 V Version
OUT
5.0 mA v I
v 100 mA (Note 4)
OUT
4.5 V v V v 21 V
IN
Line Regulation
5.0 V Version
DV
DV
DV
vs. V
vs. V
vs. I
I = 1.0 mA
OUT
6.0 V v V v 28 V
IN
-30
-30
5.0
5.0
+30
+30
mV
mV
OUT
IN
Line Regulation
3.3 V Version
I
= 1.0 mA
OUT
IN
OUT
4.5 V v V v 28 V
IN
Load Regulation
1.0 mA v I
v 100 mA (Note 4)
-40
-
5.0
270
-
+40
500
mV
mV
V
OUT
OUT
OUT
Dropout Voltage - 5.0 V Version
Dropout Voltage - 3.3 V Version
Quiescent Current
V
V
-V
IN OUT
I
= 100 mA (Notes 4 & 5)
OUT
OUT
-V
IN OUT
I
= 100 mA (Notes 4 & 7)
-
1.299
I
q
I
= 100 mA
OUT
T = 25°C
mA
-
-
-
33
33
33
55
60
70
J
T = -40°C to +85°C
T = -40°C to 150°C
J
J
Active Ground Current
Power Supply Rejection
I
I
= 50 mA (Note 4)
-
-
1.5
67
4.0
-
mA
dB
G(ON)
OUT
PSRR
V
= 0.5 V , F = 100 Hz
P-P
RIPPLE
Output Capacitor for Stability
5.0 V Version
C
I
= 0.1 mA to 100 mA
(Notes 4)
10
-
-
-
-
9.0
mF
OUT
OUT
ESR
W
Output Capacitor for Stability
3.3 V Version
C
I
= 0.1 mA to 100 mA
(Notes 4)
22
-
-
-
-
16
mF
OUT
OUT
ESR
W
PROTECTION
Current Limit
I
V
OUT
V
OUT
= 4.5 V (5.0 V Version) (Note 4)
= 3.0 V (3.3 V Version) (Note 4)
150
150
-
-
500
500
mA
OUT(LIM)
Short Circuit Current Limit
I
V
OUT
= 0 V (Note 4)
(Note 6)
40
-
-
500
200
mA
OUT(SC)
Thermal Shutdown Threshold
T
TSD
150
°C
2
3. 1 oz., 100 mm copper area.
4. Use pulse loading to limit power dissipation.
5. Dropout voltage = (V –V ), measured when the output voltage has dropped 100 mV relative to the nominal value obtained with
IN OUT
V
IN
= 13.5 V.
6. Not tested in production. Limits are guaranteed by design.
7. V = V - V . For output voltage set to < 4.5 V, V will be constrained by the minimum input voltage.
DO
IN
OUT
DO
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3
NCV4264-2
4.5-45 V
Input
V
in
V
out
1
3
Output
4264-2
2
C
in
100 nF
C
OUT
10 mF - 5.0 V Version
22 mF - 3.3 V Version
GND
Figure 2. Applications Circuit
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4
NCV4264-2
TYPICAL CHARACTERISTIC CURVES - 5 V Version
10
Unstable Region
9
8
7
6
5
4
3
2
V
C
= 13.5 V
in
≥ 10 mF
out
Stable Region
25
1
0
0
50
75
100
125
150
OUTPUT CURRENT (mA)
Figure 3. NCV4264-2 ESR Characterization
(5 V Version)
0.4
12
10
8
125°C
0.35
125°C
25°C
25°C
0.3
-40°C
-40°C
0.25
0.2
6
0.15
0.1
4
2
0.05
0
V
IN
= 13.5 V
V
IN
= 13.5 V
0
0
50
100
OUTPUT LOAD (mA)
150
200
0
5
10
15
OUTPUT LOAD (mA)
Figure 4. Quiescent Current vs. Output Load
(5 V Version)
Figure 5. Quiescent Current vs. Output Load
(Light Load) (5 V Version)
0.45
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
125°C
0.40
0.35
0.30
0.25
0.20
0.15
0.10
25°C
-40°C
0.05
0
4.92
4.90
0
50
100
150
200
-50
0
50
100
150
OUTPUT LOAD (mA)
TEMPERATURE (°C)
Figure 6. Dropout Voltage vs. Output Load
(5 V Version)
Figure 7. Output Voltage vs. Temperature
(5 V Version)
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5
NCV4264-2
TYPICAL CHARACTERISTIC CURVES - 5 V Version
180
6.0
160
140
120
100
80
5.0
4.0
3.0
T = 25°C
A
2.0
60
40
1.0
T = 125°C
A
20
0
R = 50 W
L
0
0
10
20
30
40
50
0
2.0
4.0
6.0
8.0
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Figure 8. Output Current vs. Input Voltage
(5 V Version)
Figure 9. Input Voltage vs. Output Voltage
(5 V Version)
16
14
12
10
8
6
R = 50 W
L
4
2
0
R = 100 W
L
0
10
20
30
40
50
INPUT VOLTAGE (V)
Figure 10. Quiescent Current vs. Input Voltage
(5 V Version)
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6
NCV4264-2
TYPICAL CHARACTERISTIC CURVES - 3.3 V Version
10
9
3.6
3.3
125°C
3.0
8
25°C
2.7
7
2.4
-40°C
6
2.1
1.8
1.5
1.2
0.9
0.6
5
4
3
2
I
= 5 mA
out
1
0
V
in
= 13.5 V
150
0.3
0
0
25
50
75
100
125
175
0
5
10
15
20
25
30
35
40 45
OUTPUT CURRENT (mA)
INPUT VOLTAGE (V)
Figure 11. Quiescent Current vs. Output
Current (3.3 V Version)
Figure 12. Input Voltage vs. Output Voltage
(3.3 V Version)
8
7
3.366
3.355
3.344
3.333
3.322
3.311
3.300
3.289
3.278
3.267
3.256
6
5
4
3
2
I
= 66 mA
= 33 mA
out
V
= 13.5 V
= 5 mA
out
out
1
0
I
3.245
3.234
I
out
0
5
10
15
20
25
30
35
40
45
-50 -25
0
25
50
75
100
125 150
INPUT VOLTAGE (V)
TEMPERATURE (°C)
Figure 13. Input Voltage vs. Quiescent Current
(3.3 V Version)
Figure 14. Output Voltage vs. Temperature
(3.3 V Version)
150
140
130
120
180
150
120
90
V
= 13.5 V
= 5 mA
in
I
out
60
110
100
30
0
-50 -25
0
25
50
75
100
125 150
0
5
10
15
20
25
30
35
40
45
TEMPERATURE (°C)
INPUT VOLTAGE (V)
Figure 15. Quiescent Current vs. Temperature
(3.3 V Version)
Figure 16. Input Voltage vs. Output Current
(3.3 V Version)
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NCV4264-2
TYPICAL CHARACTERISTIC CURVES - 3.3 V Version
20
Unstable Region
15
10
5
V
C
= 13.5 V
in
≥ 22 mF
out
Stable Region
30
0
0
60
90
120
150
OUTPUT CURRENT (mA)
Figure 17. ESR Stability vs. Output Current
(3.3 V Version)
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NCV4264-2
Circuit Description
Calculating Power Dissipation in a Single Output
Linear Regulator
The NCV4264-2 is functionally and pin for pin
compatible with NCV4264 with a lower quiescent current
consumption. Its output stage supplies 100 mA with
$2.0% output voltage accuracy.
The maximum power dissipation for a single output
regulator (Figure 3) is:
ƪ
ƫ
ꢂ * I
P
+ ꢂV
IN(max)
* V
) V * I
I(max) Q
D(max)
OUT(min) Q(max)
Maximum dropout voltage is 500 mV at 100 mA load
current. It is internally protected against 45 V input
transients, input supply reversal, output overcurrent faults,
and excess die temperature. No external components are
required to enable these features.
(eq. 1)
Where:
V
V
is the maximum input voltage,
is the minimum output voltage,
IN(max)
OUT(min)
I
is the maximum output current for the
application, and I is the quiescent current the regulator
Q(max)
Regulator
Q
The error amplifier compares the reference voltage to a
) and drives the base of
consumes at I
the maximum permissible value of R
. Once the value of P
is known,
can be calculated:
Q(max)
D(max)
sample of the output voltage (V
OUT
JA
q
a PNP series pass transistor by a buffer. The reference is a
bandgap design to give it a temperature-stable output.
Saturation control of the PNP is a function of the load
current and input voltage. Oversaturation of the output
power device is prevented, and quiescent current in the
ground pin is minimized.
(
)
150°C * T
A
(eq. 2)
P
+
qJA
P
D
The value of R
can then be compared with those in the
JA
q
package section of the data sheet. Those packages with
's less than the calculated value in Equation 2 will
R
JA
q
keep the die temperature below 150°C. In some cases, none
of the packages will be sufficient to dissipate the heat
generated by the IC, and an external heat sink will be
required. The current flow and voltages are shown in the
Measurement Circuit Diagram.
Regulator Stability Considerations
The input capacitor C in Figure 2 is necessary for
I1
compensating input line reactance. Possible oscillations
caused by input inductance and input capacitance can be
damped by using a resistor of approximately 1 W in series
Heat Sinks
with C . The output or compensation capacitor, C
I2
OUT
A heat sink effectively increases the surface area of the
package to improve the flow of heat away from the IC and
into the surrounding air. Each material in the heat flow path
between the IC and the outside environment will have a
thermal resistance. Like series electrical resistances, these
helps determine three main characteristics of a linear
regulator: startup delay, load transient response and loop
stability. Tantalum, aluminum electrolytic, film, or
ceramic capacitors are all acceptable solutions, however,
attention must be paid to ESR constraints. The capacitor
manufacturer's data sheet usually provides this
resistances are summed to determine the value of R
:
JA
q
R
+ R
qJC
) R
qCS
) R
qSA
(eq. 3)
qJA
information. The value for the output capacitor C
shown in Figure 2 should work for most applications;
however, it is not necessarily the optimized solution.
OUT
Where:
R
R
R
= the junction-to-case thermal resistance,
JC
q
q
q
Stability is guaranteed at values of C w 10 mF, with an
Q
= the case-to-heat sink thermal resistance, and
= the heat sink-to-ambient thermal resistance.
appears in the package section of the data sheet.
CS
SA
ESR v 9 W for the 5.0 V Version, and C w 22 mF with
Q
an ESR v 16 W for the 3.3 V Version within the operating
temperature range. Actual limits are shown in a graph in the
Typical Performance Characteristics section.
R
JA
q
Like R , it too is a function of package type. R
JA
and
CS
q
q
are functions of the package type, heat sink and the
R
SA
q
interface between them. These values appear in data sheets
of heat sink manufacturers. Thermal, mounting, and heat
sinking are discussed in the ON Semiconductor application
note AN1040/D, available on the ON Semiconductor
Website.
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9
NCV4264-2
120
100
80
60
40
20
0
SOT-223
0
100
200
300
400
500
600
700
COPPER AREA (sq mm)
Figure 18.
1000
100
10
SOT-223
1
0.1
0.01
0.001
0.000001
0.00001
0.0001
0.001
0.01
0.1
1
10
100
1000
PULSE TIME (sec)
Figure 19.
ORDERING INFORMATION
Device
Package
Shipping†
NCV4264-2ST50T3G
NCV4264-2ST33T3G
SOT-223
(Pb-Free)
4000 / Tape & Reel
SOT-223
(Pb-Free)
4000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
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10
NCV4264-2
PACKAGE DIMENSIONS
SOT-223 (TO-261)
CASE 318E-04
ISSUE M
NOTES:
D
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
b1
MILLIMETERS
INCHES
NOM
0.064
0.002
0.030
0.121
0.012
0.256
0.138
0.091
0.037
0.069
0.276
-
4
2
DIM
A
A1
b
b1
c
D
E
e
e1
L1
H
E
MIN
1.50
0.02
0.60
2.90
0.24
6.30
3.30
2.20
0.85
1.50
6.70
0°
NOM
1.63
0.06
0.75
3.06
0.29
6.50
3.50
2.30
0.94
1.75
7.00
-
MAX
1.75
0.10
0.89
3.20
0.35
6.70
3.70
2.40
1.05
2.00
7.30
10°
MIN
0.060
0.001
0.024
0.115
0.009
0.249
0.130
0.087
0.033
0.060
0.264
0°
MAX
0.068
0.004
0.035
0.126
0.014
0.263
0.145
0.094
0.041
0.078
0.287
10°
H
E
E
1
3
b
e1
e
C
q
q
A
0.08 (0003)
A1
L1
SOLDERING FOOTPRINT
3.8
0.15
2.0
0.079
6.3
2.3
2.3
0.248
0.091
0.091
2.0
0.079
mm
inches
1.5
0.059
ǒ
Ǔ
SCALE 6:1
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to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any
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NCV4264-2/D
相关型号：
NCV4269
5.0 V Micropower 150 mA LDO Linear Regulator with DELAY, Adjustable RESET, and Sense Output
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