TPS737-Q1

ACTIVE

Automotive 1-A, ultra-low-dropout voltage regulator with reverse current protection & enable

Product details

Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 5.5 Vin (min) (V) 2.2 Vout (max) (V) 3.3 Vout (min) (V) 1.9 Fixed output options (V) 1.9, 3.3 Noise (µVrms) 51 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 52 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Reverse Current Protection Accuracy (%) 3 PSRR at 100 KHz (dB) 32 Dropout voltage (Vdo) (typ) (mV) 130 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 5.5 Vin (min) (V) 2.2 Vout (max) (V) 3.3 Vout (min) (V) 1.9 Fixed output options (V) 1.9, 3.3 Noise (µVrms) 51 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 52 Rating Automotive Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Reverse Current Protection Accuracy (%) 3 PSRR at 100 KHz (dB) 32 Dropout voltage (Vdo) (typ) (mV) 130 Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4A
  • Stable with 1-µF or larger ceramic output capacitor
  • Input voltage range: 2.2 V to 5.5 V
  • Ultra-low dropout voltage: 130 mV (typical) at 1 A
  • Excellent load transient response, even with only 1-µF output capacitor
  • NMOS topology delivers low reverse leakage current
  • 1% initial accuracy
  • 3% overall accuracy over line, load, and temperature
  • Less than 20-nA (typical) quiescent current in shutdown mode
  • Thermal shutdown and current limit for fault protection
  • Available in multiple output voltage versions
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4A
  • Stable with 1-µF or larger ceramic output capacitor
  • Input voltage range: 2.2 V to 5.5 V
  • Ultra-low dropout voltage: 130 mV (typical) at 1 A
  • Excellent load transient response, even with only 1-µF output capacitor
  • NMOS topology delivers low reverse leakage current
  • 1% initial accuracy
  • 3% overall accuracy over line, load, and temperature
  • Less than 20-nA (typical) quiescent current in shutdown mode
  • Thermal shutdown and current limit for fault protection
  • Available in multiple output voltage versions

The TPS737xx-Q1 family of linear low-dropout (LDO) voltage regulators uses an NMOS pass element in a voltage-follower configuration. This topology is relatively insensitive to output capacitor value and ESR, allowing a wide variety of load configurations. Load transient response is excellent, even with a small 1-µF ceramic output capacitor. The NMOS topology also allows very low dropout.

The TPS737xx-Q1 family 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 20 nA and ideal for portable applications. These devices are protected by thermal shutdown and foldback current limit.






The TPS737xx-Q1 family of linear low-dropout (LDO) voltage regulators uses an NMOS pass element in a voltage-follower configuration. This topology is relatively insensitive to output capacitor value and ESR, allowing a wide variety of load configurations. Load transient response is excellent, even with a small 1-µF ceramic output capacitor. The NMOS topology also allows very low dropout.

The TPS737xx-Q1 family 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 20 nA and ideal for portable applications. These devices are protected by thermal shutdown and foldback current limit.






Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPS746-Q1 ACTIVE Automotive 1-A, low-IQ, high-PSRR, low-dropout (LDO) voltage regulator with power good Wider operating range with 0.85% accuracy and higher PSRR

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet TPS737-Q1 1-A Low-Dropout Regulator With Reverse Current Protection datasheet (Rev. B) 27 Sep 2019
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017

Design & development

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

Simulation model

TPS73719 PSpice Transient Model

SBVM305.ZIP (22 KB) - PSpice Model
Simulation model

TPS73733 PSpice Transient Model

SBVM291.ZIP (22 KB) - PSpice Model
Reference designs

TIDEP-01012 — Imaging radar using cascaded mmWave sensor reference design

The cascade development kit has two main use cases:
  1. To use the MMWCAS-DSP-EVM as a capture card to fully evaluate the AWR2243 four-chip cascade performance by using the mmWave studio tool, please read the TIDEP-01012 design guide.
  2. To use the MMWCAS-DSP-EVM to develop radar real time SW application, (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDM-TM4C129SDRAMNVM — Execute from SDRAM with code storage in NVM for high performance MCU

This reference design demonstrates how to implement and interface Non Volatile Memory and SDRAM to the performance microcontroller TM4C1294NCPDT in TM4C product family. The implementation is made possible by using the EPI Interface of the Microcontroller to interface a 256Mbit SDRAM at 60MHz and (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01512 — PMBus Voltage Regulator Reference Design for NXP QorIQ LS2085A/88A Processors

TIDA-01512 uses the TPS53681 multiphase controller and CSD95490Q5MC Smart Power Stages to implement a high-performance design suitable for powering NXP QorIQ Communications Processors.

The dual outputs of the controller target the 60-ATDC, 1.0-V core rail with a four-phase design and a 30-ATDC, (...)

Design guide: PDF
Schematic: PDF
Reference designs

TIDM-TM4C129POEAUDIO — Audio Communication With Power Over Ethernet (PoE) Reference Design

This design uses Texas Instrument's high performance TM4C129x microcontrollers (MCUs) with integrated Ethernet PHY to capture, exchange and playback audio efficiently with power supplied over the network (PoE solution) instead of separate external power sources. The application uses TivaWare (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDM-TM4C129POE — TM4C129POE Power Over Ethernet (PoE) Reference Design for Connected IoT

This design integrates Texas Instruments PoE solutions with TM4C129x high performance microcontrollers to enable customers to develop applications for IoT in a small form factor board. Ability to derive power over existing network cable with intelligence to gather, process and exchange data with (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDM-TM4CFLASHSRAM — Concurrent Parallel XIP Flash and SRAM Design for code download & execution on High Performance MCUs

This reference design demonstrates how to implement and interface Asynchronous Parallel Flash and SRAM Memories to the performance microcontroller TM4C129. The implementation is made possible by using the EPI Interface in Host Bus 16 Mode with mutliple Chip Selects to interface a 1Gbit-8Mbit range (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDM-TM4C129XS2E — RTOS-Based Configurable Serial-to-Ethernet Converter on High Performance MCUs Reference Design

Legacy products may only contain a serial port. Accessing such end equipments (EEs) is increasingly becoming a challenge due to the inability to add them to a shared network and access them over long distances (like remote control stations). A Serial-to-Ethernet  (S2E) converter provides a (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
VSON (DRB) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos