TPS54336A

ACTIVE

4.5V to 28V Input, 3A, Synchronous Step-Down Converter with Eco-mode(tm)

Top

Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 28 Vout (Min) (V) 0.8 Vout (Max) (V) 24 Iout (Max) (A) 3 Iq (Typ) (mA) 0.6 Switching frequency (Min) (kHz) 340 Switching frequency (Max) (kHz) 340 Features Enable, Light Load Efficiency, Synchronous Rectification, UVLO Adjustable, Soft Start Adjustable Operating temperature range (C) -40 to 150 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

HSOIC (DDA) 8 19 mm² 4.9 x 3.9 VSON (DRC) 10 9 mm² 3 x 3 open-in-new Find other Buck converters (integrated switch)

Features

  • Synchronous 128-mΩ and 84-mΩ MOSFETs for
    3-A Continuous Output Current
  • TPS54335A: Internal 2-ms Soft-Start,
    50-kHz to 1.5-MHz Adjustable Frequency
  • TPS54336A: Adjustable Soft-Start,
     Fixed 340-kHz Frequency
  • Low 2-µA Shutdown, Quiescent Current
  • 0.8-V Voltage Reference with ±0.8%
    Accuracy
  • Current Mode Control
  • Monotonic Startup into Pre-Biased Outputs
  • Pulse Skipping for Light-Load Efficiency
  • Hiccup Mode Overcurrent Protection
  • Thermal Shutdown (TSD) and
    Overvoltage Transition Protection
  • 8-Pin SO PowerPAD and 10-Pin VSON Packages
open-in-new Find other Buck converters (integrated switch)

Description

The TPS5433xA family of devices are synchronous converters with an input-voltage range of 4.5 to 28 V. These devices include an integrated low-side switching FET that eliminates the need for an external diode which reduces component count.

Efficiency is maximized through the integrated 128-mΩ and 84-mΩ MOSFETs, low IQ and pulse skipping at light loads. Using the enable pin, the shutdown supply current is reduced to 2 μA. This step-down (buck) converter provides accurate regulation for a variety of loads with a well-regulated voltage reference that is 1.5% over temperature.

Cycle-by-cycle current limiting on the high-side MOSFET protects the TPS5433xA family of devices in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. A low-side sinking current-limit turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection is triggered if the overcurrent condition continues for longer than the preset time. Thermal shutdown disables the device when the die temperature exceeds the threshold and enables the device again after the built-in thermal hiccup time.

open-in-new Find other Buck converters (integrated switch)
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 4
Type Title Date
* Datasheet TPS5433xA 4.5-V to 28-V Input, 3-A Output, Synchronous Step-Down DC-DC Converter datasheet (Rev. D) Feb. 10, 2016
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guides Control-Mode Quick Reference Guide (Rev. A) Sep. 14, 2017
User guides TPS54336AEVM-010 3-A Regulator Evaluation Module Jul. 11, 2017

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description
The TPS54336AEVM-010 facilitates evaluation of the TPS54336A 28-V, 3-A, synchronous monolithic buck converter with integrated MOSFETs. The TPS54336A enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count. Efficiency is (...)
Features
  • 0.6 V Internal Voltage Reference
  • Pulse Skipping Boosts Efficiency at Light Loads
  • Monotonic Start-Up into Pre-biased Outputs
  • Integrated FETs

Design tools & simulation

SIMULATION MODELS Download
SLVM898A.ZIP (29 KB) - PSpice Model
SIMULATION MODELS Download
SLVM979.TSC (235 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVM980.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVMAM8A.ZIP (97 KB) - PSpice Model
SIMULATION TOOLS Download
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 (...)
Features
  • 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

REFERENCE DESIGNS Download
Bidirectional RS-485 Fan-Out Hub Reference Design
TIDA-01365 — The Bidirectional RS-485 Fan-Out Hub Reference Design (TIDA-01365) documents and tests an RS-485 fan-out hub design where 1:N and N:1 RS-485 signals are aggregated in and out of any bus topology. This design also features automatic direction control, for reduced pin count on microcontrollers, and a (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SO PowerPAD (DDA) 8 View options
VSON (DRC) 10 View options

Ordering & quality

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

Related videos