LP2992 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator | TI.com

LP2992 (ACTIVE)

Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator

 

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Description

The LP2992 is a 250-mA, fixed-output voltage regulator designed to provide ultra-low dropout and low noise in battery-powered applications.

Using an optimized vertically integrated PNP (VIP) process, the LP2992 delivers unequaled performance in all specifications critical to battery-powered designs:

  • Dropout voltage: Typically 450 mV at 250-mA load, and 5 mV at 1-mA load.
  • Ground pin current: Typically 1500 µA at 250-mA load, and 75 µA at 1-mA load.
  • Enhanced stability: The LP2992 is stable with output capacitor equivalent series resistance (ESR) as low as 5 mΩ, which allows the use of ceramic capacitors on the output.
  • Sleep mode: Less than 1-µA quiescent current when ON/OFF pin is pulled low.
  • Smallest possible size: SOT-23 and WSON packages use absolute minimum board space.
  • Precision output: 1% tolerance output voltages available (A grade).
  • Low noise: By adding a 10-nF bypass capacitor, output noise can be reduced to 30 µV (typical).
  • Multiple voltage options, from 1.5 V to 5 V, are available as standard products. Consult factory for custom voltages.
For all available packages, see the orderable addendum at the end of the data sheet.

Features

  • Input Voltage Range: 2.2 V to 16 V
  • Output Voltage Range: 1.5 V to 5 V
  • Wide Supply Voltage Range (16-V Maximum)
  • Output Voltage Accuracy 1% (A Grade)
  • Ultra-Low-Dropout Voltage
  • Specified 250-mA Output Current
  • Stable With Low-ESR Output Capacitor
  • < 1-µA Quiescent Current When Shut Down
  • Low Ground Pin Current at All Loads
  • High Peak Current Capability
  • Low ZOUT: 0.3-Ω Typical (10 Hz to 1 MHz)
  • Overtemperature and Overcurrent Protection
  • −40°C to +125°C Junction Temperature Range
  • Smallest Possible Size (SOT-23, WSON Package)
  • Requires Minimum External Components
  • Custom Voltages Available

View more

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)
LP2992 LP2982 LP2983
Fixed Output     Fixed Output     Fixed Output    
0.25     0.05     0.15    
16     16     16    
2.2     3.12     2.2    
5     5     1.2    
1.5     3     1    
1.5
1.8
2.5
3.3
5    
3
3.3
5    
1
1.2    
SOT-23 | 5
WSON | 6    
SOT-23 | 5     SOT-23 | 5    
Enable
Soft Start    
Enable     Enable    
1     1     1    
-40 to 125     -40 to 125     -40 to 125    
72     176     169    
30     30     60    
0.38 | 1ku     0.29 | 1ku     0.51 | 1ku    
Catalog     Catalog     Catalog    
Ceramic     Non-Ceramic     Ceramic    
40     38     38    
2     2.3     1.5    
450     120     1000    
0.065     0.065     0.065    
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)
See datasheet (WSON)    
5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)     5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)    

Design tool

WEBENCH® Designer LP2992

  Min   Max Range
Vin  V 2.2 to 16.0V
Product Option
Vout  V
Iout  A ≤ 0.25A
Ambient Temp  °C -40.0 to 125.0°C