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NCP400 Datasheet(PDF) 2 Page - ON Semiconductor

Part No. NCP400
Description  150 mA CMOS Low Iq Low-Dropout Voltage Regulator with Voltage Detector Output
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP400 Datasheet(HTML) 2 Page - ON Semiconductor

 
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NCP400
http://onsemi.com
2
TYPICAL OPERATION CIRCUIT
Figure 1. Power Supply and Reset Circuit for Microprocessor and/or Memory Chip
VIN
NCP400
VOUT
RESET
CD
GND
C
VDD
ENABLE
GND
1
mF
CIN
RESET
1
mF
COUT
Microprocessor
/ Memory Chip
DelayTime : (
Dt) +
(C
0.97 V)
1.56
mA
PIN DESCRIPTION
Pin No.
Symbol
Description
1
VIN
Positive power supply input voltage.
2
ENABLE
This input is used to place the device into low–power standby. When this input is pulled low, the device is
disabled. If this function is not used, ENABLE should be connected to VIN.
3
RESET
Voltage detect output signal.
4
CD
Delay capacitor pin.
5
GND
Power supply ground.
6
VOUT
Voltage regulator output voltage.
REPRESENTATIVE BLOCK DIAGRAM
Figure 2. Representative Block Diagram
+
+
Vref
CD
VIN
GND
ENABLE
Thermal
Shutdown
Driver w/
Current
Limit
VOUT
RESET
ON
OFF


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