Top

Product details

Parameters

Output options Adjustable Output, Tracking Output Iout (Max) (A) 1.5 Vin (Max) (V) 5.5 Vin (Min) (V) 0.8 Vout (Max) (V) 3.6 Vout (Min) (V) 0.8 Noise (uVrms) 20 Iq (Typ) (mA) 3 Thermal resistance θJA (°C/W) 20 Load capacitance (Min) (µF) 0 Rating Catalog Regulated outputs (#) 1 Features Enable, Power Good Accuracy (%) 1 PSRR @ 100 KHz (dB) 45 Dropout voltage (Vdo) (Typ) (mV) 55 Operating temperature range (C) -40 to 85 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

TO-263 (KTW) 7 154 mm² 10.1 x 15.24 VQFN (RGW) 20 25 mm² 5 x 5 open-in-new Find other Linear regulators (LDO)

Features

  • Track Pin Allows for Flexible Power-Up Sequencing
  • 1% Accuracy Over Line, Load, and Temperature
  • Supports Input Voltages as Low as 0.9V with External Bias Supply
  • Adjustable Output (0.8V to 3.6V)
  • Fixed Output (0.9V to 3.6V)
  • Ultra-Low Dropout: 55mV at 1.5A (typ)
  • Stable with Any or No Output Capacitor
  • Excellent Transient Response
  • Available in 5mm × 5mm × 1mm QFN and DDPAK-7 Packages
  • Open-Drain Power-Good (5 × 5 QFN)
  • Active High Enable
  • APPLICATIONS
    • FPGA Applications
    • DSP Core and I/O Voltages
    • Post-Regulation Applications
    • Applications with Special Start-Up Time or Sequencing Requirements

All other trademarks are the property of their respective owners

open-in-new Find other Linear regulators (LDO)

Description

The TPS743xx low-dropout (LDO) linear regulators provide an easy-to-use robust power management solution for a wide variety of applications. The TRACK pin allows the output to track an external supply. This feature is useful in minimizing the stress on ESD structures that are present between the CORE and I/O power pins of many processors. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility allows the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors and the family is fully specified from –40°C to +125°C. The TPS743xx is offered in a small (5mm × 5mm) QFN package, yielding a highly compact total solution size. For applications that require additional power dissipation, the DDPAK (KTW) package is also available.

open-in-new Find other Linear regulators (LDO)
Download
Similar products you might be interested in
open-in-new Compare products
Similar but not functionally equivalent to the compared device:
TPS7A8300 ACTIVE 2-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy TPS7A8300 is a next-generation, low-noise, 2-A LDO.
TPS7A83A ACTIVE 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good 2-A LDO with lower-noise (4.4uVrms), low dropout (200mV) and improved accuracy (0.75%)
TPS7A92 ACTIVE 2-A, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy 2-A LDO with lower noise (4.7uVrms) LDO in small package (2.5x2.5mm)

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 14
Type Title Date
* Datasheet 1.5A Ultra-LDO with Programmable Sequencing datasheet (Rev. K) Aug. 10, 2010
Application note LDO Noise Demystified (Rev. B) Aug. 18, 2020
Application note A Topical Index of TI LDO Application Notes (Rev. F) Jun. 27, 2019
Technical article LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical article LDO Basics: Preventing reverse current Jul. 25, 2018
Technical article LDO basics: introduction to quiescent current Jun. 20, 2018
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) Mar. 21, 2018
Application note LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical article LDO basics: noise – part 1 Jun. 14, 2017
Application note Using New Thermal Metrics Dec. 15, 2009
Application note Q3 2007 Issue Analog Applications Journal Aug. 10, 2007
Application note Simultaneous power-down sequencing with the TPS74x01 family of linear regulators Aug. 10, 2007
Application note A 3-A, 1.2-Vout linear regulator with 80% efficiency and Plost < 1W Oct. 10, 2006
User guide TPS74x01EVM-118 User's Guide Jun. 20, 2006

Design & development

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

Hardware development

EVALUATION BOARD Download
TPS74301 Evaluation Module
TPS74301EVM-118
document-generic User guide
10
Description

The TPS74301EVM-118 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPS74301 LDO linear regulator. The EVM uses the TPS74301, 1.5 A linear regulator with tracking and integrated power good (PG). Refer to the (...)

Features
  • Supports input voltages as low as 0.9 V with external bias supply due to ultra-low dropout
  • Adjustable output (0.8 V to 3.6 V) up to 1.5 A
  • Track pin allows simultaneous or ratiometric startup
  • Stable with any or no output capacitor
  • 1% accuracy over line, load and temperature
  • Open drain power good (PG)
  • 5 mm (...)

Design tools & simulation

SIMULATION MODEL Download
SBVM635.ZIP (2 KB) - PSpice Model
SIMULATION MODEL Download
SLIM015B.ZIP (62 KB) - PSpice Model
SIMULATION MODEL Download
SLIM286.ZIP (36 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLIM287.TSC (105 KB) - TINA-TI Reference Design
SCHEMATIC Download
SLVR303A.PDF (196 KB)
SCHEMATIC Download
SLVR337.PDF (158 KB)

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTW) 7 View options
VQFN (RGW) 20 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

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