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LM2937G-XX-TQ5-T

Description
500mA LOW DROPOUT VOLTAGE REGULATOR
File Size221KB,10 Pages
ManufacturerUNISONIC TECHNOLOGIES CO.,LTD
Websitehttp://www.unisonic.com.tw/
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LM2937G-XX-TQ5-T Overview

500mA LOW DROPOUT VOLTAGE REGULATOR

UNISONIC TECHNOLOGIES CO., LTD
LM2937
500mA LOW DROPOUT
VOLTAGE REGULATOR
1
DESCRIPTION
The UTC
LM2937
is a positive voltage regulator capable of
supplying up to 500mA of load current. The use of a PNP power
transistor provides a low dropout voltage characteristic. With a
load current of 500mA the minimum input to output voltage
differential required for the output to remain in regulation is
typically 0.5V(1V guaranteed maximum over the full operating
temperature range). Special circuitry has been incorporated to
minimize the quiescent current to typically only 10mA with a full
500mA load current when the input to output voltage differential is
greater than 3V.
The UTC
LM2937
requires an output bypass capacitor for
stability. As with most low dropout regulators, the ESR of this
capacitor remains a critical design parameter, but the LM2937
includes special compensation circuitry that relaxes ESR
requirements. The UTC
LM2937
is stable for all ESR below
3Ω.This allows the use of low ESR chip capacitors.
Ideally suited for automotive applications, the UTC
LM2937
will
protect itself and any load circuitry from reverse battery
connections, two-battery jumps and up to +60V/-50V load dump
transients. Familiar regulator features such as short circuit and
thermal shutdown protection are also built in.
LINEAR INTEGRATED CIRCUIT
TO-220
1
TO-263
1
TO-263-3
1
TO-263-5
FEATURES
* Fully specified for operation over -40°C~ +125°C
* Output current in excess of 500mA
* Output trimmed for 5% tolerance under all operating conditions
* Typical dropout voltage of 0.5V at full rated load current
* Wide output capacitor ESR range, up to 3Ω
* Reverse battery protection
* Internal short circuit and thermal overload protection
* 60V input transient protection
* Mirror image insertion protection
* Built-in ON/OFF control function
ORDERING INFORMATION
Order Number
Lead Free
LM2937L-xx-TA3-T
LM2937L-xx-TQ2-R
LM2937L-xx-TQ2-T
LM2937L-xx-TQ3-R
LM2937L-xx-TQ3-T
LM2937L-xx-TQ5-R
LM2937L-xx-TQ5-T
Halogen Free
LM2937G-xx-TA3-T
LM2937G-xx-TQ2-R
LM2937G-xx-TQ2-T
LM2937G-xx-TQ3-R
LM2937G-xx-TQ3-T
LM2937G-xx-TQ5-R
LM2937G-xx-TQ5-T
Package
TO-220
TO-263
TO-263
TO-263-3
TO-263-3
TO-263-5
TO-263-5
Packing
Tube
Tape Reel
Tube
Tape Reel
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 10
QW-R102-012.G

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