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TPS53119

ACTIVE

3-V to 26-V, 20-A, synchronous D-CAP buck controller with eco-mode

Product details

Vin (min) (V) 3 Vin (max) (V) 26 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iout (max) (A) 20 Iq (typ) (mA) 0.4 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 970 Features Adjustable current limit, Enable, Light Load Efficiency, Power good, Pre-Bias Start-Up Operating temperature range (°C) -20 to 85 Regulated outputs (#) 1 Number of phases 1 Rating Catalog Control mode D-CAP Type Controller
Vin (min) (V) 3 Vin (max) (V) 26 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iout (max) (A) 20 Iq (typ) (mA) 0.4 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 970 Features Adjustable current limit, Enable, Light Load Efficiency, Power good, Pre-Bias Start-Up Operating temperature range (°C) -20 to 85 Regulated outputs (#) 1 Number of phases 1 Rating Catalog Control mode D-CAP Type Controller
VQFN (RGT) 16 9 mm² 3 x 3
  • Conversion input voltage range: 3 V to 26 V
  • VDD input voltage range: 4.5 V to 25 V
  • Output voltage range: 0.6 V to 5.5 V
  • Built-In 0.6-V (±0.8%) reference
  • Built-In LDO linear voltage regulator
  • Auto-skip Eco-Mode™ for light-load efficiency
  • D-CAP™ mode with 100-ns load-step response
  • Adaptive ON-time control architecture with 8 selectable frequency settings
  • 4700-ppm/°C RDS(on) current sensing
  • 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable internal voltage servo soft start
  • Pre-charged start-up capability
  • Built-in output discharge
  • Open-drain power-good output
  • Integrated boost switch
  • Built-In OVP/UVP/OCP
  • Thermal shutdown (non-latch)
  • 3-mm × 3-mm 16-Pin VQFN (RGT) package
  • Create a custom design using the TPS53119 with the WEBENCH® Power Designer
  • Conversion input voltage range: 3 V to 26 V
  • VDD input voltage range: 4.5 V to 25 V
  • Output voltage range: 0.6 V to 5.5 V
  • Built-In 0.6-V (±0.8%) reference
  • Built-In LDO linear voltage regulator
  • Auto-skip Eco-Mode™ for light-load efficiency
  • D-CAP™ mode with 100-ns load-step response
  • Adaptive ON-time control architecture with 8 selectable frequency settings
  • 4700-ppm/°C RDS(on) current sensing
  • 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable internal voltage servo soft start
  • Pre-charged start-up capability
  • Built-in output discharge
  • Open-drain power-good output
  • Integrated boost switch
  • Built-In OVP/UVP/OCP
  • Thermal shutdown (non-latch)
  • 3-mm × 3-mm 16-Pin VQFN (RGT) package
  • Create a custom design using the TPS53119 with the WEBENCH® Power Designer

The TPS53119 device is a small-sized single buck controller with adaptive ON-time D-CAP mode control. The device is designed for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supplies in digital consumer products. The small package and minimal pin count save space on the PCB, while the dedicated EN pin and pre-set frequency selections simplify the power supply design. The skip mode at light load conditions, strong gate drivers, and low-side FET RDS(on) current sensing supports low loss and high efficiency over a broad load range. The conversion input voltage (high-side FET drain voltage) range is between 4.5 V and 25 V, and the output voltage range is between 0.6 V and 5.5 V. The TPS53119 is available in a 16-pin VQFN package specified from –20°C to +85°C.

The TPS53119 device is a small-sized single buck controller with adaptive ON-time D-CAP mode control. The device is designed for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supplies in digital consumer products. The small package and minimal pin count save space on the PCB, while the dedicated EN pin and pre-set frequency selections simplify the power supply design. The skip mode at light load conditions, strong gate drivers, and low-side FET RDS(on) current sensing supports low loss and high efficiency over a broad load range. The conversion input voltage (high-side FET drain voltage) range is between 4.5 V and 25 V, and the output voltage range is between 0.6 V and 5.5 V. The TPS53119 is available in a 16-pin VQFN package specified from –20°C to +85°C.

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Technical documentation

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Type Title Date
* Data sheet TPS53119 Wide input voltage, Eco-Mode, synchronous step-down controller datasheet (Rev. A) PDF | HTML 22 Mar 2019
User guide TPS53119 Buck Controller Evaluation Module User's Guide (Rev. A) PDF | HTML 26 Jan 2022
White paper Power solution options for data center applications (Rev. A) 27 Feb 2020

Design & development

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

Evaluation board

TPS53119EVM-690 — TPS53119 Eco-mode™, Single, Synchronous, Step-Down Controller Evaluation Module

The TPS53119EVM-690 evaluation module (EVM) uses the TPS53119. The TPS53119 is a small-size, single buck controller with adaptive on-time D-CAP™ mode control. It provides a fixed 1.1-V output at up to 25 A from a 12-V input bus.
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS53119 PSpice Transient Model

SLUM609.ZIP (66 KB) - PSpice Model
Simulation model

TPS53119 Unencrypted PSpice Transient Model

SLUM610.ZIP (7 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
VQFN (RGT) 16 View options

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