LP2982 50-mA Micropower Ultra-Low-Dropout LDO in SOT-23 Package | TI.com

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

 

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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

Parametrics

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Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LP2982 Order now Fixed Output     0.05     16     3.12     5     3     3
3.3
5    
SOT-23 | 5     Enable     1     -40 to 125     176     30     0.29 | 1ku     Catalog     38     2.3     120     0.065     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
LP2983 Order now Fixed Output     0.15     16     2.2     1.2     1     1
1.2    
SOT-23 | 5     Enable     1     -40 to 125     169     60     0.51 | 1ku     Catalog     38     1.5     1000     0.065     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
LP2992 Order now Fixed Output     0.25     16     2.2     5     1.5     1.5
1.8
2.5
3.3
5    
SOT-23 | 5
WSON | 6    
Enable
Soft Start    
1     -40 to 125     72     30     0.38 | 1ku     Catalog     40     2     450     0.065     5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)
6WSON: 10 mm2: 3.29 x 2.92 (WSON | 6)