Product details

Output options Fixed Output Iout (Max) (A) 0.3 Vin (Max) (V) 3.3 Vin (Min) (V) 1.3 Vout (Max) (V) 1.8 Vout (Min) (V) 0.9 Fixed output options (V) 0.9, 1, 1.1, 1.2, 1.725, 1.8, 1.825 Noise (uVrms) 12 Iq (Typ) (mA) 0.012 Thermal resistance θJA (°C/W) 79 Rating Catalog Load capacitance (Min) (µF) 1 Regulated outputs (#) 1 Features Enable, Output Discharge, Reverse Current Protection Accuracy (%) 3 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 120 Operating temperature range (C) -40 to 125
Output options Fixed Output Iout (Max) (A) 0.3 Vin (Max) (V) 3.3 Vin (Min) (V) 1.3 Vout (Max) (V) 1.8 Vout (Min) (V) 0.9 Fixed output options (V) 0.9, 1, 1.1, 1.2, 1.725, 1.8, 1.825 Noise (uVrms) 12 Iq (Typ) (mA) 0.012 Thermal resistance θJA (°C/W) 79 Rating Catalog Load capacitance (Min) (µF) 1 Regulated outputs (#) 1 Features Enable, Output Discharge, Reverse Current Protection Accuracy (%) 3 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 120 Operating temperature range (C) -40 to 125
DSBGA (YKA) 4 DSBGA (YKA) 4 0 mm² .752 x .752 WSON (DRV) 6 4 mm² 2 x 2
  • Input voltage range: 1.3 V to 3.3 V
  • Output voltage range: 0.8 V to 2.3 V
  • Output current: 300 mA
  • PSRR: 75 dB at 1 kHz
  • Output voltage tolerance: ±2%
  • Low dropout: 120 mV (typical)
  • Very low IQ (enabled, no load): 12 µA
  • Low output-voltage noise: 12 µVRMS
  • Stable with ceramic input and output capacitors
  • Thermal overload protection
  • Short-circuit protection
  • Reverse current protection
  • Automatic output discharge for fast turnoff
  • Input voltage range: 1.3 V to 3.3 V
  • Output voltage range: 0.8 V to 2.3 V
  • Output current: 300 mA
  • PSRR: 75 dB at 1 kHz
  • Output voltage tolerance: ±2%
  • Low dropout: 120 mV (typical)
  • Very low IQ (enabled, no load): 12 µA
  • Low output-voltage noise: 12 µVRMS
  • Stable with ceramic input and output capacitors
  • Thermal overload protection
  • Short-circuit protection
  • Reverse current protection
  • Automatic output discharge for fast turnoff

The LP5910 is a low-noise LDO that can supply up to 300 mA of output current. Designed to meet the requirements of RF and analog circuits, this device provides low noise, high PSRR, low quiescent current, and superior line transient and load transient response. Using new innovative design techniques the LP5910 offers class-leading noise performance without a noise bypass capacitor and with the option for remote output capacitor placement.

The device contains a reverse current protection circuit that prevents a reverse current flow through the LDO to the IN pin when the input voltage is lower than the output voltage.

When the Enable (EN) pin is low, and the output is in an OFF state, an automatic output discharge circuit discharges the output capacitance for fast turnoff.

With its low input and low output voltage range the LP5910 is well-suited as a post DC-DC regulator (post BUCK regulator) or for single- or dual-cell applications.

The device is designed to work with a 1-µF input and a 1-µF output ceramic capacitor. A separate noise bypass capacitor is not required.

This device is available with fixed output voltages from 0.8 V to 2.3 V in 25-mV steps. Contact Texas Instruments Sales for specific voltage option needs.

The LP5910 is a low-noise LDO that can supply up to 300 mA of output current. Designed to meet the requirements of RF and analog circuits, this device provides low noise, high PSRR, low quiescent current, and superior line transient and load transient response. Using new innovative design techniques the LP5910 offers class-leading noise performance without a noise bypass capacitor and with the option for remote output capacitor placement.

The device contains a reverse current protection circuit that prevents a reverse current flow through the LDO to the IN pin when the input voltage is lower than the output voltage.

When the Enable (EN) pin is low, and the output is in an OFF state, an automatic output discharge circuit discharges the output capacitance for fast turnoff.

With its low input and low output voltage range the LP5910 is well-suited as a post DC-DC regulator (post BUCK regulator) or for single- or dual-cell applications.

The device is designed to work with a 1-µF input and a 1-µF output ceramic capacitor. A separate noise bypass capacitor is not required.

This device is available with fixed output voltages from 0.8 V to 2.3 V in 25-mV steps. Contact Texas Instruments Sales for specific voltage option needs.

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Sample availability

DRV and YKA packages are fully released. Production samples are available.  Order now

YCP package is in preview. Preproduction samples are available (PLP5910-1.2PYCPR).  Order now

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Technical documentation

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Type Title Date
* Data sheet LP5910 300-mA Low-Noise, Low-IQ LDO datasheet (Rev. F) 23 Apr 2021
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 LDOs Thermal Performance in Small SMD Packages 22 Apr 2016
User guide LP5910DRVEVM User's Guide 25 Sep 2015
User guide LP5910YKAEVM User's Guide 25 Sep 2015

Design & development

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

Evaluation board

LP5910DRV18EVM — LP5910 DRV-1.8 300-mA low-noise low-IQ LDO linear regulator evaluation module

The Texas Instruments LP5910DRV18EVM evaluation module (EVM) helps designers evaluate the performance of the LP5910, 300mA, Ultra-low-Noise, Low-Dropout Linear Regulator. The EVM is a standalone evaluation module containing one positive voltage low-dropout regulator IC for fixed voltage regulation (...)

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Evaluation board

LP5910YKA18EVM — LP5910 YKA-1.8 300-mA low-noise low-IQ LDO linear regulator evaluation module

The Texas Instruments LP5910YKA18EVM evaluation module (EVM) helps designers evaluate the performance of the LP5910, 300mA, Ultra-low-Noise, Low-Dropout Linear Regulator. The EVM is a standalone evaluation module containing one positive voltage low-dropout regulator IC for fixed voltage regulation (...)

In stock
Limit: 5
Simulation model

LP5910_1P2 PSpice Transient Model (Rev. A)

SNVMAE9A.ZIP (51 KB) - PSpice Model
Simulation model

LP5910_1P2 Unencrypted PSpice Transient Model (Rev. A)

SNVMAF0A.ZIP (2 KB) - PSpice Model
Simulation model

LP5910_1P8 PSpice Transient Model (Rev. A)

SNVMAF1A.ZIP (50 KB) - PSpice Model
Simulation model

LP5910_1P8 Unencrypted PSpice Transient Model (Rev. A)

SNVMAF2A.ZIP (2 KB) - PSpice Model
Simulation model

LP5910_1P0 Unencrypted PSpice Transient Model (Rev. A)

SNVMAF3A.ZIP (2 KB) - PSpice Model
Simulation model

LP5910_1P0 PSpice Transient Model (Rev. A)

SNVMAF4A.ZIP (51 KB) - PSpice Model
Simulation model

LP5910_0P9 PSpice Transient Model (Rev. A)

SNVMAP6A.ZIP (54 KB) - PSpice Model
Simulation model

LP5910_0P9 Unencrypted PSpice Transient Model (Rev. A)

SNVMAP7A.ZIP (2 KB) - PSpice Model
Simulation model

LP5910_1P1 Unencrypted PSpice Transient Model

SNVMAU5.ZIP (2 KB) - PSpice Model
Simulation model

LP5910_1P1 PSpice Transient Model

SNVMAU6.ZIP (55 KB) - PSpice Model
Simulation model

LP5910 PSpice Transient Model

SNVMBB6.ZIP (52 KB) - PSpice Model
Simulation model

LP5910 Unencrypted PSpice Transient Model

SNVMBB7.ZIP (2 KB) - PSpice Model
Reference designs

TIDA-010057 — Ultrasound smart probe power supply reference design

Significant technological advancements and high degree of integration in Medical imaging, especially hand-held ultrasound smart probes, are pushing engineers to come up with highly-efficient, noise immune power solutions in a small size. This reference design documents end to end power and data (...)
Reference designs

TIDA-00599 — LP5910 and TPS61221 as Power Reference Design for devices Interacting with Ultra-Low Voltage MSP430

The MSP430X09X can operate form ultra-low voltages (ULV) in the range of 0.9V to 1.65V; however most of the devices in the system requires higher voltages. TIDA-00599 provides a solution for those companion devices that requires 1.8V and 3.3V input voltages.

A 3.3V voltage rail is generated from a (...)

Package Pins Download
DSBGA (YKA) 4 View options
WSON (DRV) 6 View options

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