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LP2951-Q1

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Automotive 100mA 30V low-dropout voltage regulator with power good and enable

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Data sheet

LP2951-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Vin (max) (V) 30 Vin (min) (V) 2 Iout (max) (A) 0.1 Output options Adjustable Output, Fixed Output Vout (max) (V) 29 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 430 PSRR at 100 KHz (dB) 54 Iq (typ) (mA) 0.075 Features Enable, Power good Thermal resistance θJA (°C/W) 56, 122 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
Rating Automotive Vin (max) (V) 30 Vin (min) (V) 2 Iout (max) (A) 0.1 Output options Adjustable Output, Fixed Output Vout (max) (V) 29 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 430 PSRR at 100 KHz (dB) 54 Iq (typ) (mA) 0.075 Features Enable, Power good Thermal resistance θJA (°C/W) 56, 122 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 380 Operating temperature range (°C) -40 to 125
WSON (DRG) 8 9 mm² (3 mm × 3 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LP2951-Q1 Automotive, Adjustable Micropower Voltage Regulator With Shutdown datasheet (Rev. J) PDF | HTML Jun 18, 2026
Application note An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) PDF | HTML Sep 23, 2025
Functional safety information LP2951-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. B) PDF | HTML Nov 7, 2024
Application note A Topical Index of TI LDO Application Notes (Rev. F) Jun 27, 2019
E-book LDO Basics (Rev. A) Apr 8, 2019
Technical article LDO basics: dropout PDF | HTML Mar 16, 2017

Design & development

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Evaluation board

LP2951EVM — LP2951 Fixed/Adjustable Micropower Low-Dropout (LDO) Regulator Evaluation Module

The LP2951 devices are bipolar low-dropout (LDO) voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V with an output load up to 100 mA. The LP2951EVM allows for flexibility in design, allowing the user to add or remove input and output capacitors, as well as (...)
User guide: PDF
Supported products & hardware
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Simulation model

LP2951-50 PSpice Transient Model

SLVMA10.ZIP (24 KB) - PSpice model
Supported products & hardware
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WSON (DRG) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
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