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TPS794

ACTIVE

250-mA, low-dropout voltage regulator with enable

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Data sheet

TPS794

ACTIVE
Data sheet Order now

Product details

Rating Catalog Vin (max) (V) 5.5 Vin (min) (V) 2.7 Iout (max) (A) 0.25 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.4 Vout (min) (V) 1.22 Fixed output options (V) 1.8, 2.5, 2.8, 3, 3.3, 5.4 Noise (µVrms) 32 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.17 Features Enable Thermal resistance θJA (°C/W) 53 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 155 Operating temperature range (°C) -40 to 85
Rating Catalog Vin (max) (V) 5.5 Vin (min) (V) 2.7 Iout (max) (A) 0.25 Output options Adjustable Output, Fixed Output Vout (max) (V) 5.4 Vout (min) (V) 1.22 Fixed output options (V) 1.8, 2.5, 2.8, 3, 3.3, 5.4 Noise (µVrms) 32 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.17 Features Enable Thermal resistance θJA (°C/W) 53 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 155 Operating temperature range (°C) -40 to 85
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOT-223 (DCQ) 6 45.89 mm² 6.5 x 7.06
  • 250mA low-dropout regulator with enable
  • Available in fixed and adjustable versions
  • High PSRR: 60dB at 10kHz
  • Fast start-up
  • Excellent load, line transient response
  • Very low dropout voltage: 155mV(typ) at full load
  • Available in HVSSOP-8 and SOT223-6 packages
  • 250mA low-dropout regulator with enable
  • Available in fixed and adjustable versions
  • High PSRR: 60dB at 10kHz
  • Fast start-up
  • Excellent load, line transient response
  • Very low dropout voltage: 155mV(typ) at full load
  • Available in HVSSOP-8 and SOT223-6 packages

The TPS794 low-dropout (LDO) linear voltage regulator features high power-supply rejection ratio (PSRR), low-noise, fast start-up, and excellent line and load transient responses. Each device in the family is stable with a small 2.2µF ceramic capacitor on the output. The TPS794 offers low dropout voltages, 155mV (typ) at 250mA.Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high PSRR and low noise features as well as the fast response time.

The TPS794 low-dropout (LDO) linear voltage regulator features high power-supply rejection ratio (PSRR), low-noise, fast start-up, and excellent line and load transient responses. Each device in the family is stable with a small 2.2µF ceramic capacitor on the output. The TPS794 offers low dropout voltages, 155mV (typ) at 250mA.Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high PSRR and low noise features as well as the fast response time.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS794 250mA, Low-Dropout Linear Regulator datasheet (Rev. F) PDF | HTML 19 Dec 2025
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 06 Jul 2018
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
Test report TI Power Reference Design for Xilinx® Artix®-7 (AC701) 12 May 2014
User guide PMP7977 User's Guide 11 Sep 2013
Application note Using 3.3-V Signals for Spartan-3 Configuration and JTAG Ports (Rev. A) 13 Apr 2004
User guide DEM-SOT223LDO Demonstration Fixture 15 Oct 2003

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
Simulation model

TPS79401 PSpice Transient Model

SLVMBR6.ZIP (81 KB) - PSpice Model
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Simulation model

TPS79401 Unencrypted PSpice Transient Model

SLVMBR7.ZIP (2 KB) - PSpice Model
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Simulation model

TPS79418 PSpice Transient Model

SLVMBU9.ZIP (80 KB) - PSpice Model
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Simulation model

TPS79418 Unencrypted PSpice Transient Model

SLVMBV0.ZIP (2 KB) - PSpice Model
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Simulation model

TPS79425 PSpice Transient Model

SLVMBV2.ZIP (82 KB) - PSpice Model
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Simulation model

TPS79425 Unencrypted PSpice Transient Model

SLVMBV1.ZIP (2 KB) - PSpice Model
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Simulation model

TPS79428 PSpice Transient Model

SLVMBU5.ZIP (83 KB) - PSpice Model
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Simulation model

TPS79428 Unencrypted PSpice Transient Model

SLVMBU6.ZIP (2 KB) - PSpice Model
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Simulation model

TPS79430 PSpice Transient Model

SLVMBU8.ZIP (83 KB) - PSpice Model
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Simulation model

TPS79430 Unencrypted PSpice Transient Model

SLVMBU7.ZIP (2 KB) - PSpice Model
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Simulation model

TPS79433 PSpice Transient Model

SLVMBU4.ZIP (83 KB) - PSpice Model
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Simulation model

TPS79433 Unencrypted PSpice Transient Model

SLVMBU3.ZIP (2 KB) - PSpice Model
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PCB layout

PMP7977 PCB

TIDU151.PDF (6781 KB)
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Reference designs

PMP7977 — Xilinx Artix 7 FPGA with PMBus Power Management Reference Design

The Artix 7 power management reference design board uses power modules, linear regulators, and a PMBus compliant system controller to supply all required core and auxiliary voltages needed by the FPGA, including DDR memory termination. A Digital Power graphical user interface is used to monitor the (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
HVSSOP (DGN) 8 Ultra Librarian
SOT-223 (DCQ) 6 Ultra Librarian
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