Product details

Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.15 Vin (Max) (V) 5.5 Vin (Min) (V) 1.7 Vout (Max) (V) 5.5 Vout (Min) (V) 1.2 Fixed output options (V) 1.25, 1.5, 1.8, 2.5, 3, 3.1, 3.2, 3.3, 5 Noise (uVrms) 30 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 207 Rating Catalog Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent Protection, Reverse Current Protection Accuracy (%) 1 PSRR @ 100 KHz (dB) 32 Dropout voltage (Vdo) (Typ) (mV) 30 Operating temperature range (C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.15 Vin (Max) (V) 5.5 Vin (Min) (V) 1.7 Vout (Max) (V) 5.5 Vout (Min) (V) 1.2 Fixed output options (V) 1.25, 1.5, 1.8, 2.5, 3, 3.1, 3.2, 3.3, 5 Noise (uVrms) 30 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 207 Rating Catalog Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent Protection, Reverse Current Protection Accuracy (%) 1 PSRR @ 100 KHz (dB) 32 Dropout voltage (Vdo) (Typ) (mV) 30 Operating temperature range (C) -40 to 125
SOT-23 (DBV) 5 5 mm² 2.9 x 1.6
  • Stable With or Without Capacitors of All Types
  • Input Voltage Range of 1.7 V to 5.5 V
  • Ultralow Dropout Voltage: 30 mV Typical (150-mA
    Load)
  • Excellent Load Transient Response–With or
    Without Optional Output Capacitor
  • New NMOS Topology Provides Low Reverse
    Leakage Current
  • Low Noise: 30 µVRMS Typical (10 kHz to 100 kHz)
  • 0.5% Initial Accuracy
  • 1% Overall Accuracy Over Line, Load, and
    Temperature
  • Less Than 1-µA Maximum IQ in Shutdown Mode
  • Thermal Shutdown and Specified Minimum and
    Maximum Current Limit Protection
  • Available in Multiple Output Voltage Versions
    • Fixed Outputs of 1.20 V to 5 V
    • Adjustable Outputs from 1.2 V to 5.5 V
    • Custom Outputs Available
  • APPLICATIONS
    • Smart Grid and Energy
    • Building Automation
    • Set-Top Boxes
    • Medical Equipment
    • Test and Measurement
    • Point-of-Sale Terminals
    • Wireless Infrastructure

All other trademarks are the property of their respective owners

  • Stable With or Without Capacitors of All Types
  • Input Voltage Range of 1.7 V to 5.5 V
  • Ultralow Dropout Voltage: 30 mV Typical (150-mA
    Load)
  • Excellent Load Transient Response–With or
    Without Optional Output Capacitor
  • New NMOS Topology Provides Low Reverse
    Leakage Current
  • Low Noise: 30 µVRMS Typical (10 kHz to 100 kHz)
  • 0.5% Initial Accuracy
  • 1% Overall Accuracy Over Line, Load, and
    Temperature
  • Less Than 1-µA Maximum IQ in Shutdown Mode
  • Thermal Shutdown and Specified Minimum and
    Maximum Current Limit Protection
  • Available in Multiple Output Voltage Versions
    • Fixed Outputs of 1.20 V to 5 V
    • Adjustable Outputs from 1.2 V to 5.5 V
    • Custom Outputs Available
  • APPLICATIONS
    • Smart Grid and Energy
    • Building Automation
    • Set-Top Boxes
    • Medical Equipment
    • Test and Measurement
    • Point-of-Sale Terminals
    • Wireless Infrastructure

All other trademarks are the property of their respective owners

The TPS731xx family of low-dropout (LDO) linear voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration. This topology is stable using output capacitors with low equivalent series resistance (ESR), and even allows operation without a capacitor. The device also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS731xx uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is less than 1 µA and ideal for portable applications. The extremely low output noise (30 µVRMS with 0.1-µF CNR) is ideal for powering VCOs. These devices are protected by thermal shutdown and foldback current limit.

The TPS731xx family of low-dropout (LDO) linear voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration. This topology is stable using output capacitors with low equivalent series resistance (ESR), and even allows operation without a capacitor. The device also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS731xx uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is less than 1 µA and ideal for portable applications. The extremely low output noise (30 µVRMS with 0.1-µF CNR) is ideal for powering VCOs. These devices are protected by thermal shutdown and foldback current limit.

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Technical documentation

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Type Title Date
* Data sheet TPS731xx Capacitor-Free, NMOS, 150-mA Low Dropout Regulator With Reverse Current Protection datasheet (Rev. N) 17 Dec 2015
* Radiation & reliability report TPS73125MDBVREP Reliability Report 26 Aug 2011
* Radiation & reliability report TPS73133MDBVREP Reliability Report 26 Aug 2011
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Application note LDO Noise Demystified (Rev. B) 18 Aug 2020
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018
Application note LDO PSRR Measurement Simplified (Rev. A) 09 Aug 2017
More literature DMOS Delivers Dramatic Performance Gains to LDO Regulators (EDN mag) 14 Feb 2001

Design & development

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

Evaluation board

DEM-SOT23LDO — DEM-SOT23LDO Compatible With Most Positive-Output LDO Regulators in 5- or 6-Lead SOT23 (DBV) Package

Out of stock on TI.com
Simulation model

TPS73130 PSpice Transient Model

SBVM342.ZIP (21 KB) - PSpice Model
Simulation model

TPS73101 PSpice Transient Model

SBVM343.ZIP (21 KB) - PSpice Model
Simulation model

TPS731125 PSpice Transient Model

SBVM344.ZIP (22 KB) - PSpice Model
Simulation model

TPS73115 PSpice Transient Model

SBVM345.ZIP (21 KB) - PSpice Model
Simulation model

TPS73118 PSpice Transient Model

SBVM346.ZIP (21 KB) - PSpice Model
Simulation model

TPS73125 PSpice Transient Model

SBVM347.ZIP (21 KB) - PSpice Model
Simulation model

TPS73131 PSpice Transient Model

SBVM348.ZIP (21 KB) - PSpice Model
Simulation model

TPS73132 PSpice Transient Model

SBVM349.ZIP (21 KB) - PSpice Model
Simulation model

TPS73133 PSpice Transient Model

SBVM350.ZIP (21 KB) - PSpice Model
Simulation model

TPS73150 PSpice Transient Model

SBVM351.ZIP (21 KB) - PSpice Model
Simulation model

TPS73130 Unencrypted PSpice Transient Model

SBVM578.ZIP (1 KB) - PSpice Model
Simulation model

TPS731125 Unencrypted PSpice Transient Model

SBVM579.ZIP (1 KB) - PSpice Model
Simulation model

TPS73115 Unencrypted PSpice Transient Model

SBVM580.ZIP (1 KB) - PSpice Model
Simulation model

TPS73132 Unencrypted PSpice Transient Model

SBVM581.ZIP (1 KB) - PSpice Model
Simulation model

TPS73101 Unencrypted PSpice Transient Model

SBVM582.ZIP (1 KB) - PSpice Model
Simulation model

TPS73131 Unencrypted PSpice Transient Model

SBVM583.ZIP (1 KB) - PSpice Model
Simulation model

TPS73150 Unencrypted PSpice Transient Model

SBVM584.ZIP (1 KB) - PSpice Model
Simulation model

TPS73125 Unencrypted PSpice Transient Model

SBVM585.ZIP (1 KB) - PSpice Model
Simulation model

TPS73133 Unencrypted PSpice Transient Model

SBVM586.ZIP (1 KB) - PSpice Model
Schematic

5Vin DM355 Power using LDO's (Rev. B)

SLVR331B.PDF (381 KB)
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PMP2187 — Flyback, Linear Regulator for Medical Pack (5.75V @ 10mA)

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Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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  • Ongoing reliability monitoring

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