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Linear & low-dropout (LDO) regulators

TPS736

ACTIVE

400-mA, high-accuracy, ultra-low-dropout voltage regulator with reverse current protection & enable

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Data sheet

TPS736

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.4 Vin (Max) (V) 5.5 Vin (Min) (V) 1.7 Vout (Max) (V) 5.4 Vout (Min) (V) 1.2 Fixed output options (V) 1.25, 1.5, 1.6, 1.8, 1.9, 2.5, 3, 3.2, 3.3, 4.3 Noise (uVrms) 30 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 53 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) 75 Operating temperature range (C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.4 Vin (Max) (V) 5.5 Vin (Min) (V) 1.7 Vout (Max) (V) 5.4 Vout (Min) (V) 1.2 Fixed output options (V) 1.25, 1.5, 1.6, 1.8, 1.9, 2.5, 3, 3.2, 3.3, 4.3 Noise (uVrms) 30 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 53 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) 75 Operating temperature range (C) -40 to 125
SOT-223 (DCQ) 6 23 mm² 6.5 x 3.5 SOT-223 (DCQ) 6 — SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 VSON (DRB) 8 9 mm² 3.0 x 3.0 VSON (DRB) 8 9 mm² 3 x 3
  • Stable with No Output Capacitor or Any Value
    or Type of Capacitor
  • Input Voltage Range of 1.7 V to 5.5 V
  • Ultra-Low Dropout Voltage: 75 mV typ
  • Excellent Load Transient Response–with or
    without Optional Output Capacitor
  • New NMOS Topology Delivers Low Reverse Leakage
    Current
  • Low Noise: 30 µVRMS typ
    (10 Hz to 100 kHz)
  • 0.5% Initial Accuracy
  • 1% Overall Accuracy Over Line, Load, and
    Temperature
  • Less Than 1 µA max IQ in Shutdown
    Mode
  • Thermal Shutdown and Specified Min/Max Current
    Limit Protection
  • Available in Multiple Output Voltage Versions
    • Fixed Outputs of 1.20 V to 5.0 V
    • Adjustable Output from 1.20 V to 5.5 V
    • Custom Outputs Available
  • APPLICATIONS
    • Portable/Battery-Powered Equipment
    • Post-Regulation for Switching Supplies
    • Noise-Sensitive Circuitry such as VCOs
    • Point of Load Regulation for DSPs, FPGAs,
      ASICs, and Microprocessors

C2000 Is a trademark of Texas Instruments
All other trademarks are the property of their respective owners
  • Stable with No Output Capacitor or Any Value
    or Type of Capacitor
  • Input Voltage Range of 1.7 V to 5.5 V
  • Ultra-Low Dropout Voltage: 75 mV typ
  • Excellent Load Transient Response–with or
    without Optional Output Capacitor
  • New NMOS Topology Delivers Low Reverse Leakage
    Current
  • Low Noise: 30 µVRMS typ
    (10 Hz to 100 kHz)
  • 0.5% Initial Accuracy
  • 1% Overall Accuracy Over Line, Load, and
    Temperature
  • Less Than 1 µA max IQ in Shutdown
    Mode
  • Thermal Shutdown and Specified Min/Max Current
    Limit Protection
  • Available in Multiple Output Voltage Versions
    • Fixed Outputs of 1.20 V to 5.0 V
    • Adjustable Output from 1.20 V to 5.5 V
    • Custom Outputs Available
  • APPLICATIONS
    • Portable/Battery-Powered Equipment
    • Post-Regulation for Switching Supplies
    • Noise-Sensitive Circuitry such as VCOs
    • Point of Load Regulation for DSPs, FPGAs,
      ASICs, and Microprocessors

C2000 Is a trademark of Texas Instruments
All other trademarks are the property of their respective owners

The TPS736xx 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 ESR, and even allows operation without a capacitor. It also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS736xx 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 under 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 TPS736xx 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 ESR, and even allows operation without a capacitor. It also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS736xx 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 under 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 TPS736xx Cap-Free, NMOS, 400-mA Low-Dropout Regulator with Reverse Current Protection datasheet (Rev. U) PDF | HTML 14 Aug 2014
* Radiation & reliability report TPS73633MDBVREPG4 Reliability Report 06 Sep 2013
* Radiation & reliability report TPS73601MDCQREP Reliability Reports 26 Aug 2011
* Radiation & reliability report TPS73601MDRBREP Reliability Report 26 Aug 2011
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note Using Thermal Calculation Tools for Analog Components (Rev. A) 30 Aug 2019
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) PDF | HTML 09 Aug 2017
Application note Power Solution using LDO's (Rev. A) 25 Mar 2010
User guide TPS73x01DRBEVM-518 User's Guide 13 Aug 2009
Analog Design Journal Q2 2009 Issue Analog Applications Journal 01 May 2009
Analog Design Journal Taming linear-regulator inrush currents 01 May 2009
Application note Extending VOUT Below 1.2 V Using an External Reference 03 Oct 2005
EVM User's guide TPS73633EVM User's Guide 15 Apr 2004
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.

document-pdfAcrobat User guide
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Evaluation board

TAS2557EVM — TAS2557 5.7-W Class-D Audio Amplifier Evaluation Module with Class-H Boost and Speaker Sense

The TAS2557EVM evaluation module provides users with a powerful tool kit for complete assessment of the TAS2557 audio amplifier when used with PurePath™ Console 3 software suite (PPC3). The evaluation module ships with an attached reference speaker. The board provides an USB connection to (...)

Not available on TI.com
Evaluation board

TAS2559EVM — TAS2559 5.7-W Class-D Audio Amplifier Evaluation Module

The TAS2559EVM evaluation module provides users with a powerful tool kit for complete assessment of the TAS2559 audio amplifier when used with PurePath™ Console 3 software suite (PPC3). The reference board can be operated in stereo mode by using the TAS2560 device which is on the board. (...)
Not available on TI.com
Evaluation board

TAS2560EVM — TAS2560 evaluation module, 5.6-W Class-D audio amplifier 

The TAS2560 evaluation module enables users to quickly and easily evaluate the TAS2560 audio amplifier. This small reference design comes with an USB cable to easily connect the board to your PC and control with a register based graphical user interface provided within PurePath™ Console 3 (...)

document-pdfAcrobat User guide
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Evaluation board

TAS5722LEVM — TAS5722L Digital Input Mono Class-D Audio Amplifier Evaluation Module

The TAS5722LEVM features the TAS5722L digital input mono Class-D amplifier optimized for high-transient power capability to utilize the dynamic power headroom of small loudspeakers. 
  • TAS5722L is capable of delivering more than 14-W continuously into a 4-Ω speaker.
  • TAS5722L’s wide supply voltage (...)
Not available on TI.com
Evaluation board

TAS5805MEVM — TAS5805M Digital Input Stereo Closed-Loop Class-D Audio Amplifier with Enhanced Processing EVM

To get started:

Step 1: Hardware
Order TAS5805M Evaluation Module

Step 2: Software 
Request access to PurePath™ Console 3 and TAS5805M Software

Step 3: Training
Download the TAS5805M Evaluation Module user's guide
Read the General Tuning Guide for TAS58xx Family Application Note
Read the TAS5805M, (...)
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Evaluation board

TPS73601DRBEVM-518 — TPS73601DRBEVM-518 Evaluation Module

The TPS73601DRBEVM-518 evaluation module is a fully assembled and tested circuit for evaluating the TPS73601 low-dropout (LDO) linear voltage regulator in the DRB (3x3mm SON) package.
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Not available on TI.com
Evaluation board

TUSB1210EVM — TUSB1210 DP/DM Line External Component Compensation, Vbus Overvoltage Protection Circuit EVM

The TUSB1210EVM implements a USB PHY with a ULPI interface. It can support Host, Device, OTG modes and also have output voltage support at the ULPI interface for +1.8V. This EVM also acts as a hardware reference design for any implementation of the TUSB1210.
Not available on TI.com
Daughter card

TMDSCNCD280049C — F280049C controlCARD Evaluation Module

TMDSCNCD280049C is an HSEC180 controlCARD based evaluation and development tool for the C2000™ F28004x series of microcontroller products. controlCARDs are ideal to use for initial evaluation and system prototyping. controlCARDs are complete board-level modules that utilize one of two standard form (...)

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Simulation model

TPS73601 PSpice Transient Model TPS73601 PSpice Transient Model

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Simulation model

TPS73601 Unencrypted PSpice Transient Model TPS73601 Unencrypted PSpice Transient Model

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Schematic

Small 5Vin Two LDO Solution in QFN packages with Sequential Sequencing Small 5Vin Two LDO Solution in QFN packages with Sequential Sequencing

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Schematic

5Vin Power Design using Integrated-FET DCDC Converters and LDO's 5Vin Power Design using Integrated-FET DCDC Converters and LDO's

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Schematic

12Vin Power Design using Integrated-FET DCDC Converters and LDO's 12Vin Power Design using Integrated-FET DCDC Converters and LDO's

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Many TI reference designs include the TPS736

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SON (DRB) 8 View options
SOT-223 (DCQ) 6 View options
SOT-23 (DBV) 5 View options

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