LM2936-5.0 Ultra-Low Quiescent Current 5V Regulator
February 2000
LM2936-5.0
Ultra-Low Quiescent Current 5V Regulator
General Description
The LM2936 ultra-low quiescent current regulator features
low dropout voltage and low current in the standby mode.
With less than 15 µA quiescent current at a 100 µA load, the
LM2936 is ideally suited for automotive and other battery op-
erated systems. The LM2936 retains all of the features that
are common to low dropout regulators including a low drop-
out PNP pass device, short circuit protection, reverse battery
protection, and thermal shutdown. The LM2936 has a 40V
maximum operating voltage limit, a −40˚C to +125˚C operat-
ing temperature range, and
±
3% output voltage tolerance
over the entire output current, input voltage, and tempera-
ture range. The LM2936 is available in a TO-92 package, a
SO-8 surface mount package, and a TO-252 surface mount
power package.
Features
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Ultra low quiescent current (I
Q
≤
15 µA for I
O
≤
100 µA)
Fixed 5V, 50 mA output
Output tolerance
±
3% over line, load, and temperature
Dropout voltage typically 200 mV
@
I
O
= 50 mA
Reverse battery protection
−50V reverse transient protection
Internal short circuit current limit
Internal thermal shutdown protection
40V operating voltage limit
Typical Application
DS009759-1
* Required if regulator is located more than 2" from power supply filter capacitor.
*
*
Required for stability. Must be rated for 10 µF minimum over intended operating temperature range. Effective series resistance (ESR) is critical, see
curve. Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased without bound.
Connection Diagrams
TO-252
SOT-223
DS009759-26
DS009759-25
Top View
Order Number LM2936DT-5.0
See NS Package Number TD03B
Top View
Order Number LM2936MP-5.0
See NS Package Number MA04A
© 2000 National Semiconductor Corporation
DS009759
www.national.com
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