TPS732

ACTIVE

250mA high-accuracy, ultra-low-dropout voltage regulator with reverse current protection and enable

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 5.5 Vin (min) (V) 1.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.3, 1.5, 1.6, 1.8, 1.9, 2.5, 3, 3.3, 5 Rating Catalog Noise (µVrms) 30 PSRR at 100 KHz (dB) 32 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 53 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Reverse Current Protection Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 40 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 5.5 Vin (min) (V) 1.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.3, 1.5, 1.6, 1.8, 1.9, 2.5, 3, 3.3, 5 Rating Catalog Noise (µVrms) 30 PSRR at 100 KHz (dB) 32 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 53 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Reverse Current Protection Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 40 Operating temperature range (°C) -40 to 125
SOT-223 (DCQ) 6 45.89 mm² 6.5 x 7.06 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 VSON (DRB) 8 9 mm² 3 x 3
  • Stable with no output capacitor or any value or type of capacitor
  • Input voltage range: 1.7V to 5.5V
  • Ultra-low dropout voltage: 40mV typical at 250mA
  • Excellent load transient response—with or without optional output capacitor
  • NMOS topology provides low reverse leakage current
  • Low noise: 30µVRMS typical (10kHz to 100kHz)
  • 0.5% initial accuracy
  • 1% overall accuracy (line, load, and temperature)
  • Less than 1µA maximum IQ in shutdown mode
  • Thermal shutdown and specified min and max current limit protection
  • Available in multiple output voltage versions:
    • Fixed outputs of 1.2V to 5V
    • Adjustable outputs from 1.2V to 5.5V
    • Custom outputs available
  • Stable with no output capacitor or any value or type of capacitor
  • Input voltage range: 1.7V to 5.5V
  • Ultra-low dropout voltage: 40mV typical at 250mA
  • Excellent load transient response—with or without optional output capacitor
  • NMOS topology provides low reverse leakage current
  • Low noise: 30µVRMS typical (10kHz to 100kHz)
  • 0.5% initial accuracy
  • 1% overall accuracy (line, load, and temperature)
  • Less than 1µA maximum IQ in shutdown mode
  • Thermal shutdown and specified min and max current limit protection
  • Available in multiple output voltage versions:
    • Fixed outputs of 1.2V to 5V
    • Adjustable outputs from 1.2V to 5.5V
    • Custom outputs available

The TPS732 low-dropout (LDO) voltage regulator uses an NMOS pass transistor 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 TPS732 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 1µA and designed for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is designed for powering VCOs. This device is protected by thermal shutdown and foldback current limit.

The TPS732 low-dropout (LDO) voltage regulator uses an NMOS pass transistor 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 TPS732 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 1µA and designed for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is designed for powering VCOs. This device is protected by thermal shutdown and foldback current limit.

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Technical documentation

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Type Title Date
* Data sheet TPS732 Capacitor-Free, NMOS, 250mA, Low-Dropout Regulator With Reverse Current Protection datasheet (Rev. Q) PDF | HTML 10 Sep 2024
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Technical article LDO Basics: Thermals – How hot is your application? PDF | HTML 20 Sep 2017
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
User guide TPS73x01DRBEVM-518 User's Guide 13 Aug 2009
User guide DEM-SOT223LDO Demonstration Fixture 15 Oct 2003
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-SOT223LDO — DEM-SOT223LDO Compatible with Most Positive Output LDOs in SOT223 (DCQ) Package

The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs).  This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.

User guide: PDF
Not available on TI.com
Evaluation board

TPS73201DRBEVM-518 — TPS73201DRBEVM-518 Evaluation Module

The TPS73201DRBEVM-518 evaluation module is a fully assembled and tested circuit for evaluating the TPS73201 low-dropout (LDO) voltage regulator in the DRB (3x3mm SON) package.
User guide: PDF
Not available on TI.com
Simulation model

TPS73201 PSpice Transient Model (Rev. A)

SBVM171A.ZIP (21 KB) - PSpice Model
Simulation model

TPS73201 Unencrypted PSpice Transient Model

SBVM600.ZIP (1 KB) - PSpice Model
Simulation model

TPS73213 PSpice Transient Model

SBVM369.ZIP (21 KB) - PSpice Model
Simulation model

TPS73213 Unencrypted PSpice Transient Model

SBVM596.ZIP (1 KB) - PSpice Model
Simulation model

TPS73215 PSpice Transient Model

SBVM370.ZIP (21 KB) - PSpice Model
Simulation model

TPS73215 Unencrypted PSpice Transient Model

SBVM598.ZIP (1 KB) - PSpice Model
Simulation model

TPS73216 PSpice Transient Model

SBVM373.ZIP (21 KB) - PSpice Model
Simulation model

TPS73216 Unencrypted PSpice Transient Model

SBVM599.ZIP (1 KB) - PSpice Model
Simulation model

TPS73218 PSpice Transient Model

SBVM374.ZIP (21 KB) - PSpice Model
Simulation model

TPS73218 Unencrypted PSpice Transient Model

SBVM602.ZIP (1 KB) - PSpice Model
Simulation model

TPS73219 PSpice Transient Model

SBVM375.ZIP (21 KB) - PSpice Model
Simulation model

TPS73219 Unencrypted PSpice Transient Model

SBVM594.ZIP (1 KB) - PSpice Model
Simulation model

TPS73225 PSpice Transient Model

SBVM376.ZIP (21 KB) - PSpice Model
Simulation model

TPS73225 Unencrypted PSpice Transient Model

SBVM593.ZIP (1 KB) - PSpice Model
Simulation model

TPS73230 PSpice Transient Model

SBVM372.ZIP (21 KB) - PSpice Model
Simulation model

TPS73230 Unencrypted PSpice Transient Model

SBVM597.ZIP (1 KB) - PSpice Model
Simulation model

TPS73233 PSpice Transient Model

SBVM371.ZIP (21 KB) - PSpice Model
Simulation model

TPS73233 Unencrypted PSpice Transient Model

SBVM601.ZIP (1 KB) - PSpice Model
Simulation model

TPS73250 PSpice Transient Model

SBVM363.ZIP (21 KB) - PSpice Model
Simulation model

TPS73250 TINA-TI Transient Reference Design

SBVM366.TSC (49 KB) - TINA-TI Reference Design
Simulation model

TPS73250 TINA-TI Transient Spice Model

SBVM365.ZIP (7 KB) - TINA-TI Spice Model
Simulation model

TPS73250 Unencrypted PSpice Transient Model

SBVM595.ZIP (1 KB) - PSpice Model
Reference designs

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Design guide: PDF
Schematic: PDF
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Design guide: PDF
Schematic: PDF
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Test report: PDF
Schematic: PDF
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PMP20489 — High Density 12Vin 0.8V 200A & 3.3V 75A POL Reference Design

The TPS53679-based reference design provides a single IC for control of two multi-phase outputs with up to 6 phases on main output and up to 2 phases on channel 2; up to 7 phases in all.  Multi-phase also allows output ripple cancellation and effective higher bandwidth control for a (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP2187 — Flyback Linear Regulator for Medical Pack (5.75V at 10mA) Reference Design

This design provides isolated 5V (x2), 3.3V, 2.5V and -5V outputs. All outputs are noise filtered using Low Drop Out (LDO) linear regulators for noise sensitive applications such as medical imaging and data acquisition.
Test report: PDF
Schematic: PDF
Reference designs

TIDA-00826 — 50-Ohm 2-GHz Oscilloscope Front-end Reference Design

This reference design is part of an analog front-end for 50Ω-input oscilloscope application. System designers can readily use this evaluation platform to process input signals from DC to 2 GHz in both frequency-domain and time-domain applications.
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOT-223 (DCQ) 6 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
VSON (DRB) 8 Ultra Librarian

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

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