NCP4625
300 mA, 10 V, Low Dropout
Regulator
The NCP4625 is a CMOS Linear voltage regulator with 300 mA
output current capability. The device is capable of operating with input
voltages up to 10 V, with high output voltage accuracy and low
temperature−drift coefficient. The NCP4625 is easy to use, with
output current fold−back protection and a thermal shutdown circuit
included. A Chip Enable function is included to save power by
lowering supply current.
Features
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MARKING
DIAGRAMS
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Operating Input Voltage Range: 2.6 V to 10 V
Output Voltage Range: 1.2 to 6.0 V (available in 0.1 V steps)
Low Supply Current: 23
mA
Very Low Dropout:
♦
200 mV (I
OUT
= 100 mA, V
IN
= 3.0 V)
♦
770 mV (I
OUT
= 300 mA, V
IN
= 2.8 V)
High PSRR: 70 dB at 1 kHz
Line Regulation 0.02%/V Typ
Current Fold Back Protection
Thermal Shutdown Protection
Stable with Ceramic Capacitors
Available in SC−70, SOT89 and SOT−23 Package
These are Pb−Free Devices
Battery products powered by Two Lithium Ion cells
Networking and Communication Equipment
Cameras, DVRs, STB and Camcorders
Toys, industrial applications
VIN
C1
1m
NCP4625x
VIN
CE
VOUT
C2
GND
1m
VOUT
SC−70
CASE 419A
XXX MG
G
1
1
SOT−89 5
CASE 528AB
XXX
XMM
XXXMM
SOT−23−5
CASE 1212
1
Typical Applications
XX, XXX= Specific Device Code
M, MM = Date Code
A
= Assembly Location
Y
= Year
W
= Work Week
G
= Pb−Free Package
(*Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
Figure 1. Typical Application Schematic
©
Semiconductor Components Industries, LLC, 2012
February, 2012
−
Rev. 2
1
Publication Order Number:
NCP4625/D
NCP4625
VIN
VOUT VIN
VOUT
Vref
Current Limit
Thermal Shutdown
GND
Vref
CE
CE
Current Limit
Thermal Shutdown
GND
NCP4625Hxxxx
NCP4625Dxxxx
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
SOT89
5
2
3
1
4
Pin No.
SC−70
5
3
1
4
2
Pin No.
SOT23
1
2
3
5
4
Pin Name
VIN
GND
CE
VOUT
NC
Input pin
Ground
Chip enable pin (Active “H”)
Output pin
No connection
Description
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Power Dissipation SOT89
Power Dissipation SC−70
Power Dissipation SOT23
Junction Temperature
Storage Temperature
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
T
J
T
STG
ESD
HBM
ESD
MM
Symbol
V
IN
V
OUT
V
CE
I
OUT
P
D
Value
12.0
−0.3
to V
IN
+ 0.3
12.0
330
900
380
420
−40
to 150
−55
to 125
2000
200
°C
°C
V
V
Unit
V
V
V
mA
mW
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latchup Current Maximum Rating tested per JEDEC standard: JESD78.
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NCP4625
THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, SOT89
Thermal Resistance, Junction−to−Air
Thermal Characteristics, SOT23
Thermal Resistance, Junction−to−Air
Thermal Characteristics, SC−70
Thermal Resistance, Junction−to−Air
Symbol
R
qJA
R
qJA
R
qJA
Value
111
238
263
Unit
°C/W
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
−40°C
≤
T
A
≤
85°C; V
IN
= V
OUT(NOM)
+ 1 V; I
OUT
= 1 mA, C
IN
= C
OUT
= 0.47
mF,
unless
otherwise noted. Typical values are at T
A
= +25°C.
Parameter
Operating Input Voltage
Output Voltage
T
A
= +25°C
−40°C
≤
T
A
≤
85°C
Output Voltage Temp.
Coefficient
Line Regulation
Load Regulation
Dropout Voltage
V
OUT
> 1.5 V
V
OUT
≤
1.5 V
V
OUT
> 1.5 V
V
OUT
≤
1.5 V
−40°C
≤
T
A
≤
85°C
V
OUT(NOM)
+ 0.5 V or 2.6 V (whichever is higher)
≤
V
IN
≤
10 V
I
OUT
= 0.1 mA to 300 mA
I
OUT
= 300 mA
1.2 V
≤
V
OUT
< 1.3 V
1.3 V
≤
V
OUT
< 1.5 V
1.5 V
≤
V
OUT
< 1.8 V
1.8 V
≤
V
OUT
< 2.3 V
2.3 V
≤
V
OUT
< 3.0 V
3.0 V
≤
V
OUT
< 4.0 V
4.0 V
≤
V
OUT
< 6.0 V
Output Current
Short Current Limit
Quiescent Current
Standby Current
CE Pin Threshold Voltage
V
IN
= 10 V, V
CE
= 0 V, T
A
= 25°C
CE Input Voltage “H”
CE Input Voltage “L”
CE Pull Down Current
Power Supply Rejection Ratio
Output Noise Voltage
Low Output N−channel Tr. On
Resistance
Thermal Shutdown Temperature
Thermal Shutdown Release
V
IN
= V
OUT
+ 1 V or 3.0 V whichever is higher,
ΔV
IN
= 0.2 V
pk−pk
, I
OUT
= 30 mA, f = 1 kHz
f = 10 Hz to 100 kHz
V
IN
= 7 V, V
CE
= 0 V, V
OUT
= 1.2 V, V
IN
= 2.6 V,
I
OUT
= 30 mA
V
OUT
= 0 V
I
OUT
I
SC
I
Q
I
STB
V
CEH
V
CEL
I
CEPD
PSRR
V
N
R
LOW
T
TSD
T
TSR
0.3
70
85
250
165
110
1.7
0.8
mA
dB
mV
rms
W
°C
°C
300
40
23
0.1
40
1.0
Line
Reg
Line
Reg
V
DO
Test Conditions
Symbol
V
IN
V
OUT
Min
2.6
x0.99
−15
x0.974
−40
±80
0.02
10
1.40
1.35
1.20
0.98
0.77
0.60
0.50
0.2
70
1.80
1.75
1.55
1.30
1.08
0.85
0.75
mA
mA
mA
mA
V
Typ
Max
10
x1.01
15
x1.023
35
Unit
V
V
mV
V
mV
ppm/°C
%/V
mV
V
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NCP4625
TYPICAL CHARACTERISTICS
1.4
1.2
1.0
V
OUT
(V)
0.8
0.6
0.4
0.2
0.0
0
100
200
300
I
OUT
(mA)
400
500
600
V
OUT
(V)
V
IN
= 2.6 V
3.0 V
4.0 V
3.0
2.5
2.0
1.5
1.0
0.5
0.0
V
IN
= 3.0 V
3.3 V
3.6 V
4.0 V
5.0 V
0
100
200
300
I
OUT
(mA)
400
500
600
Figure 3. Output Voltage vs. Output Current
1.2 V Version (T
J
= 255C)
Figure 4. Output Voltage vs. Output Current
2.8 V Version (T
J
= 255C)
6.0
8.0 V
5.0
4.0
V
OUT
(V)
3.0
2.0
1.0
0.0
1.75
1.50
V
IN
= 5.3 V
5.6 V
7.0 V
V
DO
(V)
6.0 V
1.25
1.00
0.75
0.50
0.25
0
100
200
300
I
OUT
(mA)
400
500
600
0.00
0
50
100
150
I
OUT
(mA)
200
250
300
T
J
=
−40°C
and T
J
= 25°C
105°C
Figure 5. Output Voltage vs. Output Current
5.0 V Version (T
J
= 255C)
0.70
0.60
0.50
V
DO
(V)
0.40
0.30
−40°C
0.20
0.10
0.00
0
50
100
150
I
OUT
(mA)
200
250
300
0.10
0.00
T
J
= 25°C
V
DO
(V)
105°C
0.50
0.40
0.30
0.20
Figure 6. Dropout Voltage vs. Output Current
1.2 V Version
T
J
= 25°C
105°C
−40°C
0
50
100
Figure 7. Dropout Voltage vs. Output Current
2.8 V Version
Figure 8. Dropout Voltage vs. Output Current
5.0 V Version
150
200
I
OUT
(mA)
250
300
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NCP4625
TYPICAL CHARACTERISTICS
1.30
1.28
1.26
1.24
V
OUT
(V)
1.20
1.18
1.16
1.14
1.12
1.10
−40
−20
0
20
40
60
T
J
, JUNCTION TEMPERATURE (°C)
80
V
OUT
(V)
1.22
2.90
2.88
2.86
2.84
2.82
2.80
2.78
2.76
2.74
2.72
2.70
−40
−20
0
20
40
60
T
J
, JUNCTION TEMPERATURE (°C)
80
V
IN
= 2.6 V
V
IN
= 3.8 V
Figure 9. Output Voltage vs. Temperature,
1.2 V Version
5.10
5.08
5.06
5.04
I
GND
(mA)
V
OUT
(V)
5.02
5.00
4.98
4.96
4.94
4.92
4.90
−40
−20
0
20
40
60
T
J
, JUNCTION TEMPERATURE (°C)
80
V
IN
= 6.0 V
40
35
30
25
20
15
10
5
0
0
Figure 10. Output Voltage vs. Temperature,
2.8 V Version
V
OUT
= 5 V
2.8 V
1.2 V
1
2
3
4
V
IN
, OUTPUT VOLTAGE (V)
5
6
Figure 11. Output Voltage vs. Temperature,
5.0 V Version
30
25
2.8 V
20
I
GND
(mA)
V
OUT
(V)
15
10
5
0
−40
V
OUT
= 1.2 V
5.0 V
1.4
1.2
1.0
0.8
0.6
0.4
0.2
−20
0
20
40
60
T
J
, JUNCTION TEMPERATURE (°C)
80
0.0
0
Figure 12. Supply Current vs. Input Voltage
1 mA
20 mA
50 mA
100 mA
I
OUT
= 200 mA
2
4
6
V
IN
, INPUT VOLTAGE (V)
8
10
Figure 13. Supply Current vs. Temperature,
1.2 V Version
Figure 14. Output Voltage vs. Input Voltage,
1.2 V Version
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