May 17, 2012
LM2936Q
Ultra-Low Quiescent Current LDO Voltage Regulator
General Description
Features
The LM2936Q 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
LM2936Q is ideally suited for automotive and other battery
operated systems. The LM2936Q retains all of the features
that are common to low dropout regulators including a low
dropout PNP pass device, short circuit protection, reverse
battery protection, and thermal shutdown. The LM2936Q has
a 40V maximum operating voltage limit, a −40°C to +125°C
operating temperature range, and ±3% output voltage toler-
ance over the entire output current, input voltage, and tem-
perature range. The LM2936Q is available in a SO-8
package, SOT-223 surface mount package and TO-252 sur-
face mount package.
AEC-Q100 Grade 1 Qualified (-40°C to 125°C)
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Ultra low quiescent current (IQ ≤ 15 μA for IO = 100 μA)
Fixed 3.0V, 3.3V or 5.0V with 50 mA output
±2% Initial output tolerance
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±3% Output tolerance over line, load, and temperature
Dropout voltage typically 200 mV @ IO = 50 mA
Reverse battery protection
−50V reverse transient protection
Internal short circuit current limit
Internal thermal shutdown protection
40V operating voltage limit
60V operating voltage limit for LM2936HV
Shutdown pin available with the LM2936BM package
Typical Application
30131901
* Required if regulator is located more than 2″ from power supply filter capacitor.
** Required for stability. See Electrical Characteristics for required values. Must be rated over intended operating temperature range. Effective series resis-
tance (ESR) is critical, see curve. Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased without
bound.
© 2012 Texas Instruments Incorporated
301319 SNVS684B
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