Ultra-Low Quiescent Current LDO Voltage Regulator

Ultra-Low Quiescent Current LDO Voltage Regulator - LM2936Q-Q1

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The LM2936Q ultralow 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 40-V maximum operating voltage limit, a −40°C to +125°C operating temperature range, and ±3% output voltage tolerance over the entire output current, input voltage, and temperature range. The LM2936Q is available in
8-pin SOIC and VSSOP packages, a 4-pin SOT–223 package, as well as a 3-pin TO-252 surface mount package.

For all available packages, see the orderable addendum at the end of the data sheet.


  • Qualified for Automotive Applications
  • AEC Q100-Qualified With the Following Results
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
  • Operating Input Voltage: 5.5 V to 40 V
  • Ultralow Quiescent Current (IQ ≤ 15 μA for IOUT = 100 μA)
  • Fixed 3-V, 3.3-V or 5-V With 50-mA Output
  • ±2% Initial Output Tolerance
  • ±3% Output Tolerance Over Line, Load, and Temperature
  • Dropout Voltage Typically 200 mV at IOUT = 50 mA
  • Reverse Battery Protection
  • –50-V Input Transient Protection
  • Internal Short Circuit Current Limit
  • Internal Thermal Shutdown Protection
  • 40-V Operating Voltage Limit
  • Shutdown Pin Available with LM2936QBM Package

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Parametrics Compare all products in Single Channel LDO

Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Fixed Output Options (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Operating Temperature Range (C)
LM2936Q-Q1 TPS798-Q1 TPS7A16-Q1
0.05    0.05    0.1   
Fixed Output    Adjustable Output
Fixed Output   
Adjustable Output
Fixed Output   
5.5    3    3   
60    50    60   
5    3.3
3    1.275    1.2   
5    28    18.5   
0.015    0.04    0.005   
200    300    60   
4    1.5    2   
500    100    215   
35    36    26   
Non-Ceramic    Ceramic    Ceramic   
Automotive    Automotive    Automotive   
-40 to 125    -40 to 125    -40 to 125   
8MSOP-PowerPAD    8MSOP-PowerPAD