LP2981-N Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 Package | TI.com

LP2981-N (ACTIVE)

Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 Package

 

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Description

The LP2981-N is a 100-mA, fixed-output voltage regulator designed specifically to meet the requirements of battery-powered applications.

Using an optimized Vertically Integrated PNP (VIP) process, the LP2981-N delivers unequaled performance in all specifications critical to battery-powered designs:

Dropout Voltage: Typically 200 mV at 100-mA load, and 7 mV at 1-mA load.

Ground Pin Current: Typically 600 μA at 100-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: 0.75% tolerance output voltages available (A grade).

Assorted voltage options, from 2.5 V to 5 V, are available as standard products.

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

Features

  • Operating Input Voltage Range: 2.1 V to 16 V
  • Ultralow-Dropout Voltage
  • Output Voltage Accuracy 0.75% (A Grade)
  • Specified 100-mA Output Current
  • < 1-μA Quiescent Current when Shutdown
  • Low Ground Pin Current at All Load Currents
  • High Peak Current Capability (300 mA Typical)
  • Wide Supply Voltage Range (16 V Maximum)
  • Fast Dynamic Response to Line and Load
  • Low ZOUT Over Wide Frequency Range
  • 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 @ 100 KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package size: mm2:W x L (PKG)
LP2981-N LP2980-ADJ LP2980-N LP2985-N
Fixed Output     Adjustable Output     Fixed Output     Fixed Output    
0.1     0.05     0.05     0.15    
16     16     16     16    
2.7     2.5     2.1     2.2    
5     15     5     6.1    
2.5     1.2     2.5     1.8    
2.5
3
3.3
3.6
5    
  2.5
3
3.3
3.8
4.7
5    
2.5
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.5
3.6
3.8
4
4.5
5
6.1    
SOT-23 | 5     SOT-23 | 5     SOT-23 | 5     SOT-23 | 5    
Enable     Enable     Enable     Enable    
1     1     1     1    
-40 to 125     -40 to 125     -40 to 125     -40 to 125    
176     300     175     169    
160     160     160     30    
0.34 | 1ku     0.22 | 1ku     0.22 | 1ku     0.24 | 1ku    
Catalog     Catalog     Catalog     Catalog    
Non-Ceramic     Ceramic     Ceramic     Ceramic    
41     32     45     30    
2     2.5     3     2    
200     120     120     280    
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)