SPX2975(2004) Ver la hoja de datos (PDF) - Signal Processing Technologies
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SPX2975 Datasheet PDF : 8 Pages
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®
SPX2975
400mA Low Dropout Voltage Regulator
FEATURES
■ 5V Fixed Output
■ High Accuracy
■ Very Low Current Consumption: 70µA
■ Power-on and Under Voltage Reset
■ Reset Low Down to VOUT = 1V
■ Extremely Low Dropout Voltage
■ Short Circuit Protection
■ Programmable Safety Timer
■ 4kV ESD Protection
SPX2975
5 Pin TO-220
123 45
SPX2975
5 Pin TO-263
1 2345
APPLICATIONS
■ Automotive Electronics
■ Wireless Station
■ Industrial Systems
Now Available in Lead Free Packaging
DESCRIPTION
Sipex’s SPX2975 is a low dropout linear regulator with integrated PNP pass transistor. The part
is available in a 5 pin TO-220 package or surface mount TO-263. The part used to convert an
automotive battery voltage, with allowable input up to 45V, down to 5V with at least 400mA output
current delivered. Internal power consumption is kept to 60uA ideal for applications where micro-
power operation is important. At over-temperature the SPX2975 is turned off by the integrated
temperature protection circuit. A reset signal is generated for a typical output voltage of 4.65V
with a time delay that can be programmed by an external delay capacitor.
TYPICAL APLICATION CIRCUIT
IIN
C11
1000µF
I
1
C12
100nF
VIN
IRD,d
IRD,c
RD 4
VRD
CD
47nF
VOUT
5
SPX2975
3
GND
IGND
2 RO
IOUT
CQ
22µF
IRO
REXT
5kΩ
VOUT
VRD
Date: 6/30/04
SPX2975 400mA Low Dropout Voltage Regulator
1
© Copyright 2004 Sipex Corporation
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