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

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Parametrics Compare all products in Linear regulators (LDO)

 
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
Output Capacitor Type
PSRR @ 100KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package Size: mm2:W x L (PKG)
LP2982 LP2980-ADJ LP2980-N LP2981-N LP2983
Fixed Output     Adjustable Output     Fixed Output     Fixed Output     Fixed Output    
0.05     0.05     0.05     0.1     0.15    
16     16     16     16     16    
3.12     2.5     2.1     2.7     2.2    
5     15     5     5     1.2    
3     1.2     2.5     2.5     1    
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    
SOT-23 | 5     SOT-23 | 5     SOT-23 | 5     SOT-23 | 5     SOT-23 | 5    
Enable     Enable     Enable     Enable     Enable    
1     1     1     1     1    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
176     300     175     176     169    
30     160     160     160     60    
0.29 | 1ku     0.22 | 1ku     0.22 | 1ku     0.34 | 1ku     0.51 | 1ku    
Catalog     Catalog     Catalog     Catalog     Catalog    
Non-Ceramic     Ceramic     Ceramic     Non-Ceramic     Ceramic    
38     32     45     41     38    
2.3     2.5     3     2     1.5    
120     120     120     200     1000    
0.065     0.065     0.065     0.065     0.065    
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)     5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)     5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)     5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)     5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)