3-V to 28-V, 20-A, synchronous D-CAP buck controller with Eco Mode


Product details


Vin (Min) (V) 3 Vin (Max) (V) 28 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 20 Iq (Typ) (uA) 400 Switching frequency (Min) (kHz) 250 Switching frequency (Max) (kHz) 970 Features Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up Operating temperature range (C) -40 to 85 Regulated outputs (#) 1 Number of phases 1 Rating Catalog open-in-new Find other Buck controllers (external switch)

Package | Pins | Size

VQFN (RGT) 16 9 mm² 3 x 3 open-in-new Find other Buck controllers (external switch)


  • Conversion input voltage range: 3 V to 28 V
  • VDD input voltage range: 4.5 V to 25 V
  • Output voltage range: 0.6 V to 5.5 V
  • Wide output load range: 0 A to > 20 A
  • 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
  • 4700ppm/°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 QFN, 16-Pin (RGT) package
open-in-new Find other Buck controllers (external switch)


The TPS53219A device is a small-sized single buck controller with adaptive ON-time D-CAP mode control. The device is suitable 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 TPS53219A is available in a 16-pin, QFN package specified from –40°C to +85°C.

open-in-new Find other Buck controllers (external switch)

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 TPS53219A 3-V to 28-V Input, D-CAP, Eco-Mode™, synchronous buck controller datasheet (Rev. B) Feb. 19, 2019
Selection guide Control-Mode Quick Reference Guide (Rev. A) Sep. 14, 2017
Application note D-CAP(TM) Mode With All-Ceramic Output Capacitor Application Feb. 03, 2011

Design & development

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

Hardware development

document-generic User guide

The TPS53219EVM-690 evaluation module (EVM) uses the TPS53219. The TPS53219 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. TPS53219EVM-690 also uses the 5-mm x 6-mm TI power block MOSFET (...)

  • 25-Adc, steady-state output current
  • Support prebias output voltage start-up
  • High efficiency and high power density by using TI power block MOSFET
  • J1 for selectable switching frequency setting
  • J2 for selectable internal voltage servo soft-start
  • J3 for enable function
  • J6 for auto-skip and forced CCM (...)

Design tools & simulation

SLUM132B.ZIP (68 KB) - PSpice Model
SLUM267A.TSC (682 KB) - TINA-TI Reference Design
SLUM268A.ZIP (59 KB) - TINA-TI Spice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

100% Pb-Free Step-Down Regulator Delivering 1V at 34A Reference Design
PMP10770 PMP10770 incorporates the TPS53219A and CSD87384M, which are the Green alternative to the TPS53355 30A dc/dc converter, and are 100% Pb-free. The design is for 10V-14V input, 1Voutput at 34A current with  83% efficiency at full load.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RGT) 16 View options

Ordering & quality

Information included:
  • RoHS
  • 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. ​​​​​​​​​​​​​​