NCP4641
150 mA, Wide Input Range,
Voltage Regulator
The NCP4641 is a CMOS 150 mA linear voltage regulator with
high input voltage and ultra−low supply current. It incorporates
multiple protection features such as peak current limit, short circuit
current limit and thermal shutdown to ensure a very robust device.
A high maximum input voltage tolerance of 50 V and a wide
temperature range make the NCP4641 suitable for a variety of
demanding applications.
Features
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MARKING
DIAGRAMS
•
•
•
•
•
•
•
•
•
•
Operating Input Voltage Range: 4 V to 36 V
Output Voltage Range: 2.0 to 12.0 V (0.1 steps)
±2%
Output Voltage Accuracy
Output Current: min 150 mA (V
IN
= 8 V, V
OUT
= 5 V)
Line Regulation: 0.05%/V
Peak Current Limit Circuit
Short Current Limit Circuit
Thermal Shutdown Circuit
Available in SOT−89−5 and SOIC6−TL Package
These are Pb−Free Devices
SOIC6−TL
CASE 751BR
XXX
XMM
1
1
XXX
XMM
SOT−89 5
CASE 528AB
Typical Applications
•
Power source for home appliances
•
Power source for car audio equipment, navigation system
•
Power source for notebooks, digital TVs, cordless phones and private
LAN systems
•
Power source for office equipment machines such as copiers,
printers, facsimiles, scanners, projectors, etc.
VIN
C1
100n
NCP4641x
VIN
CE
GND
VOUT
VOUT
C2
100n
XXXX
MM
= Specific Device Code
= Date Code
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
Figure 1. Typical Application Schematic
©
Semiconductor Components Industries, LLC, 2010
December, 2010
−
Rev. 0
1
Publication Order Number:
NCP4641/D
NCP4641
VIN
Internal
VR
Vref
VOUT
CE
Current Limit
Short Protection
Thermal Shutdown
GND
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
SOT89
5
2
4
−
3
1
Pin No.
SOIC6−TL
6
2
4
5
3
1
Pin Name
VIN
GND
GND
GND
CE
VOUT
Input pin
Ground pin, all ground pins must be connected together when it is
mounted on board
Ground pin, all ground pins must be connected together when it is
mounted on board
Ground pin, all ground pins must be connected together when it is
mounted on board
Chip enable pin (“H” active)
Output pin
Description
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2
NCP4641
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage
Peak Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Power Dissipation SOT−89
Power Dissipation SOIC6−TL
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
IN
V
OUT
V
CE
I
OUT
P
D
Value
−0.3
to 50
60
−0.3
to V
IN
+ 0.3
≤
50
−0.3
to V
IN
+ 0.3
≤
50
250
900
1700
−40
to 150
−55
to 125
2000
200
°C
°C
V
V
Unit
V
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. Duration time = 200 ms
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.
THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, SOT−89
Thermal Resistance, Junction−to−Air
Thermal Characteristics, SOIC6−TL
Thermal Resistance, Junction−to−Air
Symbol
R
qJA
R
qJA
Value
111
59
Unit
°C/W
°C/W
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3
NCP4641
ELECTRICAL CHARACTERISTICS
T
A
= 25°C
Parameter
Operating Input Voltage
Output Voltage
Output Voltage Temp. Coeffi-
cient
Line Regulation
Load Regulation
V
IN
= V
OUT
+ 3 V, I
OUT
= 1 mA
V
IN
= V
OUT
+ 3 V, I
OUT
= 1 mA, T
A
=
−40
to
105°C
V
IN
= V
OUT
+ 1.5 V to 36 V, I
OUT
= 1 mA
V
IN
= V
OUT
+ 3 V,
I
OUT
= 1 mA to 40 mA
I
OUT
= 20 mA
2.0 V
≤
V
OUT
< 5.0 V
5.0 V
≤
V
OUT
< 12.0 V
2.0 V
≤
V
OUT
< 3.7 V
3.7 V
≤
V
OUT
< 4.0 V
4.0 V
≤
V
OUT
< 5.0 V
5.0 V
≤
V
OUT
< 12.0 V
Output Current
V
IN
= V
OUT
+ 3 V
2.0 V
≤
V
OUT
< 3.0 V
3.0 V
≤
V
OUT
< 5.0 V
5.0 V
≤
V
OUT
< 12.0 V
Short Current Limit
Quiescent Current
Standby Current
CE Pin Threshold Voltage
V
OUT
= 0 V
V
IN
= V
OUT
+ 3 V, I
OUT
= 0 mA
V
IN
= 36 V, V
CE
= 0 V
CE Input Voltage “H”
CE Input Voltage “L”
Thermal Shutdown Temperature
Thermal Shutdown Release
Temperature
Power Supply Rejection Ratio
Output Noise Voltage
V
IN
= 6 V, V
OUT
= 3.0 V, I
OUT
= 30 mA, f = 1 kHz
V
OUT
= 3.0 V, I
OUT
= 30 mA, f = 10 Hz to
100 kHz
I
SC
I
Q
I
STB
V
CEH
V
CEL
T
SD
T
SR
PSRR
V
N
150
125
27
112
1.5
0.3
°C
°C
dB
mV
rms
I
OUT
100
120
150
50
9
0.1
20
1
mA
mA
mA
V
V
DO
0.35
0.25
0.20
Line
Reg
Load
Reg
Test Conditions
Symbol
V
IN
V
OUT
Min
4
x0.98
±100
0.05
10
20
0.20
25
35
(Note 3)
0.60
0.40
0.35
mA
V
Typ
Max
36
x1.02
Unit
V
V
ppm/°C
%/V
mV
Dropout Voltage
3. Dropout voltage for 2.0 V
≤
V
OUT
< 3.7 V can be computed by this formula: V
DO
= 4 V
−
V
OUTSET
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4
NCP4641
TYPICAL CHARACTERISTICS
3.5
3.0
2.5
V
OUT
(V)
2.0
1.5
1.0
0.5
0.0
0
50
100
150
I
OUT
(mA)
200
250
300
6.0 V
V
IN
= 5.0 V
5.5 V
6.5 V
4.0
V
OUT
(V)
3.0
2.0
1.0
0.0
6.0
5.0
V
IN
= 8.5 V
8.0 V
7.0 V
7.5 V
0
50
100
Figure 3. Output Voltage vs. Output Current
3.0 V Version (T
J
= 25
5C)
9.0
8.0
7.0
6.0
V
OUT
(V)
5.0
4.0
3.0
2.0
1.0
0.0
0
50
100
150
I
OUT
(mA)
200
250
300
0.0
0
10 V
10.5 V
11 V
11.5 V
2.5
2.0
Figure 4. Output Voltage vs. Output Current
5.0 V Version (T
J
= 25
5C)
150
I
OUT
(mA)
200
250
300
105°C
T
J
= 25°C
V
DO
(V)
1.5
1.0
0.5
−40°C
25
50
75
I
OUT
(mA)
100
125
150
Figure 5. Output Voltage vs. Output Current
8.0 V Version (T
J
= 25
5C)
Figure 6. Dropout Voltage vs. Output Current
3.0 V Version
2.5
2.0
1.5
1.0
0.5
0.0
T
J
= 25°C
−40°C
2.5
2.0
1.5
1.0
T
J
= 25°C
0.5
−40°C
0
25
50
75
I
OUT
(mA)
100
125
150
0.0
0
25
50
75
I
OUT
(mA)
100
125
150
105°C
V
DO
(V)
105°C
Figure 7. Dropout Voltage vs. Output Current
5.0 V Version
V
DO
(V)
Figure 8. Dropout Voltage vs. Output Current
8.0 V Version
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