TPS732-Q1

ACTIVE

Automotive 250-mA, high-accuracy, low-dropout voltage regulator with reverse current protection

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) 5.4 Vout (min) (V) 1.2 Fixed output options (V) 1.8, 5 Noise (µVrms) 30 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 48, 83.8, 179.0 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Reverse Current Protection Accuracy (%) 1 PSRR at 100 KHz (dB) 16 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) 5.4 Vout (min) (V) 1.2 Fixed output options (V) 1.8, 5 Noise (µVrms) 30 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 48, 83.8, 179.0 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Reverse Current Protection Accuracy (%) 1 PSRR at 100 KHz (dB) 16 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
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • Device Temperature Grade 0: –40°C to 150°C
      Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C4B
    • Device MM Classification Level M2
  • Stable With No Output Capacitor or Any Value or
    Type of Capacitor
  • Input Voltage Range: 1.7 V to 5.5 V
  • Ultra-Low Dropout Voltage: 40-mV Typical at
    250 mA
  • 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 (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 1.2 V, 1.5 V, 1.6 V, 1.8 V,
      2.5 V, 3 V, 3.3 V, and 5 V
    • Adjustable Outputs From 1.2 V to 5.5 V
    • Custom Outputs Available
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • Device Temperature Grade 0: –40°C to 150°C
      Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C4B
    • Device MM Classification Level M2
  • Stable With No Output Capacitor or Any Value or
    Type of Capacitor
  • Input Voltage Range: 1.7 V to 5.5 V
  • Ultra-Low Dropout Voltage: 40-mV Typical at
    250 mA
  • 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 (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 1.2 V, 1.5 V, 1.6 V, 1.8 V,
      2.5 V, 3 V, 3.3 V, and 5 V
    • Adjustable Outputs From 1.2 V to 5.5 V
    • Custom Outputs Available

The TPS732-Q1 family of low-dropout (LDO) 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. The topology also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS732-Q1 family of devices uses an advanced BiCMOS process to yield high precision while delivering 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 TPS732-Q1 family of low-dropout (LDO) 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. The topology also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS732-Q1 family of devices uses an advanced BiCMOS process to yield high precision while delivering 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 TPS732-Q1 Cap-Free NMOS 250-mA Low-Dropout Regulator With Reverse-Current Protection datasheet (Rev. F) PDF | HTML 29 Apr 2016
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Functional safety information TPS732-Q1 Functional Safety FIT Rate and Failure Mode Distribution 17 Dec 2019
Application note Using Thermal Calculation Tools for Analog Components (Rev. A) 30 Aug 2019
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
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-SOT23LDO — DEM-SOT23LDO Compatible With Most Positive-Output LDO Regulators in 5- or 6-Lead SOT23 (DBV) 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

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
Package Pins Download
SOT-223 (DCQ) 6 View options
SOT-23 (DBV) 5 View options
VSON (DRB) 8 View options

Ordering & quality

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Information included:
  • Fab location
  • Assembly location

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