Product details

Output options Fixed Output Iout (Max) (A) 0.25 Vin (Max) (V) 16 Vin (Min) (V) 2.2 Vout (Max) (V) 5 Vout (Min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.5, 3.3, 5 Noise (uVrms) 30 Iq (Typ) (mA) 0.065 Thermal resistance θJA (°C/W) 72 Rating Catalog Load capacitance (Min) (µF) 4.7 Regulated outputs (#) 1 Features Enable, Soft Start Accuracy (%) 2 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 450 Operating temperature range (C) -40 to 125
Output options Fixed Output Iout (Max) (A) 0.25 Vin (Max) (V) 16 Vin (Min) (V) 2.2 Vout (Max) (V) 5 Vout (Min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.5, 3.3, 5 Noise (uVrms) 30 Iq (Typ) (mA) 0.065 Thermal resistance θJA (°C/W) 72 Rating Catalog Load capacitance (Min) (µF) 4.7 Regulated outputs (#) 1 Features Enable, Soft Start Accuracy (%) 2 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 450 Operating temperature range (C) -40 to 125
SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 WSON (NGD) 6 10 mm² 2.92 x 3.29
  • 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
  • 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

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.

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.

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Technical documentation

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Type Title Date
* Data sheet LP2992 Micropower 250-mA Low-Noise Ultra-Low-Dropout Regulator in SOT-23 and WSON Packages Designed for Use With Very Low-ESR Output Capacitors datasheet (Rev. J) 11 Jan 2017
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018
Application note AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B) 06 May 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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Simulation model

LP2992_1P8 PSpice Transient Model

SNVM639.ZIP (39 KB) - PSpice Model
Simulation model

LP2992_3P3 PSpice Transient Model

SNVM640.ZIP (39 KB) - PSpice Model
Simulation model

LP2992_2P5 PSpice Transient Model

SNVM641.ZIP (40 KB) - PSpice Model
Simulation model

LP2992_1P5 PSpice Transient Model

SNVM642.ZIP (42 KB) - PSpice Model
Simulation model

LP2992_5P0 PSpice Transient Model

SNVM643.ZIP (40 KB) - PSpice Model
Simulation model

LP2992_1P8 TINA-TI Transient Spice Model

SNVMA19.ZIP (8 KB) - TINA-TI Spice Model
Simulation model

LP2992_1P8 TINA-TI Reference Design

SNVMA20.TSC (143 KB) - TINA-TI Reference Design
Simulation model

LP2992_2P5 TINA-TI Reference Design

SNVMA21.TSC (168 KB) - TINA-TI Reference Design
Simulation model

LP2992_2P5 TINA-TI Transient Spice Model

SNVMA22.ZIP (8 KB) - TINA-TI Spice Model
Simulation model

LP2992_5P0 Unencrypted PSpice Transient Model

SNVMA90.ZIP (1 KB) - PSpice Model
Simulation model

LP2992_1P5 Unencrypted PSpice Transient Model

SNVMA91.ZIP (1 KB) - PSpice Model
Simulation model

LP2992_2P5 Unencrypted PSpice Transient Model

SNVMA92.ZIP (1 KB) - PSpice Model
Simulation model

LP2992_3P3 Unencrypted PSpice Transient Model

SNVMA93.ZIP (1 KB) - PSpice Model
Simulation model

LP2992_1P8 Unencrypted PSpice Transient Model

SNVMA94.ZIP (1 KB) - PSpice Model
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Package Pins Download
SOT-23 (DBV) 5 View options
WSON (NGD) 6 View options

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