LP2982 (ACTIVE)

50-mA Micropower Ultra-Low-Dropout LDO in SOT-23 Package

50-mA Micropower Ultra-Low-Dropout LDO in SOT-23 Package - LP2982
 

Recommended alternative parts

  • LP2980-ADJ  -  Adjustable Output Voltages
  • LP2980-N  -  Greater Output Voltage Accuracy
  • LP2981-N  -  Higher Ouptut Current < 100mA
  • LP2983  -  Higher Output Voltages < 150mA

Description

The LP2982 is a 50-mA, fixed-output voltage LDO designed to provide ultra-low dropout and lower noise in battery-powered applications.

Using an optimized vertically integrated PNP (VIP) process, the LP2982 delivers unequaled performance in all specifications critical to battery-powered designs:

Dropout Voltage: Typically 120 mV at 50 mA load, and 7 mV at 1 mA load.

Ground Pin Current: Typically 375 μA at 50 mA load, and 80 μA at 1 mA load.

Sleep Mode: Less than 1-μA quiescent current when ON/OFF pin is pulled low.

Precision Output: 1% tolerance output voltages available (A grade).

Low Noise: By adding an external bypass capacitor, output noise can be reduced to 30 μV (typical).

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

Features

  • 2.1-V to 16-V Input Voltage
  • Ultra-Low-Dropout Voltage
  • Ensured 50-mA Output Current
  • Typical Dropout Voltage 180 mV at 80 mA
  • Requires Minimum External Components
  • < 1 μA Quiescent Current When Shut Down
  • Low Ground Pin Current at All Loads
  • Output Voltage Accuracy 1% (A Grade)
  • High Peak Current Capability (150 mA Typical)
  • Wide Supply Voltage Range (16 V Maximum)
  • Low ZOUT 0.3 Ω Typical (10 Hz to 1 MHz)
  • Overtemperature and Overcurrent Protection
  • −40°C to +125°C Junction Temperature Range

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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)
Pin/Package
LP2982 LP2980-ADJ LP2980-N LP2981-N LP2983
0.05    0.05    0.05    0.1    0.15   
Fixed Output    Adjustable Output    Fixed Output    Fixed Output    Fixed Output   
3.12    2.5    2.1    2.7    2.2   
16    16    16    16    16   
3
3.3
5   
  2.5
3
3.3
3.8
4.7
5   
2.5
3
3.3
3.6
5   
1
1.2   
3    1.2    2.5    2.5    1   
5    15    5    5    1.2   
0.065    0.065    0.065    0.065    0.065   
120    120    120    200    1000   
2.3    2.5    3    2    1.5   
30    160    160    160    60   
38    32    45    41    38   
Non-Ceramic    Ceramic    Ceramic    Non-Ceramic    Ceramic   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
5SOT-23    5SOT-23    5SOT-23    5SOT-23    5SOT-23