TPS54286

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4.5V to 28V Input, Dual 2A Output, 600kHz Step-Down Converter with Internal Compensation

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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 28 Vout (Min) (V) 0.8 Vout (Max) (V) 25.2 Iout (Max) (A) 2 Iq (Typ) (uA) 1800 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 600 Features Enable, Phase Interleaving Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 2 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

HTSSOP (PWP) 14 32 mm² 5 x 6.4 open-in-new Find other Buck converters (integrated switch)

Features

  • 4.5-V to 28-V Input Range
  • Output Voltage Range 0.8 V to 90% of Input Voltage
  • Output Current Up to 2 A
  • Two Fixed Switching Frequency Versions:
    • TPS54283: 300 kHz
    • TPS54286: 600 kHz
  • Two Selectable Levels of Overcurrent Protection (Output 2)
  • 0.8-V 1.5% Voltage Reference
  • 2.1-ms Internal Soft Start
  • Dual PWM Outputs 180° Out-of-Phase
  • Ratiometric or Sequential Startup Modes Selectable by a Single Pin
  • 100-m Internal High-Side MOSFETs
  • Current Mode Control
  • Internal Compensation (See Page 16)
  • Pulse-by-Pulse Overcurrent Protection
  • Thermal Shutdown Protection at 148°C
  • 14-Pin PowerPAD™ HTSSOP package
  • APPLICATIONS
    • Set Top Box
    • Digital TV
    • Power for DSP
    • Consumer Electronics

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

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Description

TPS54283 and TPS54286 are dual output non-synchronous buck converters capable of supporting 2-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.

With internally-determined operating frequency, soft start time, and control loop compensation, these converters provide many features with a minimum of external components. Channel 1 overcurrent protection is set at 3 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications not needing the full load capability of both outputs.

The outputs may be enabled independently, or may be configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may also be powered from different sources.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet 2-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH SIDE MOSFET datasheet (Rev. C) Oct. 16, 2007
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guide Using the TPS54383EVM (Rev. C) Jan. 22, 2008
User guide Using the TPS54386EVM Jul. 19, 2007

Design & development

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

Hardware development

EVALUATION BOARD Download
49
Description
The TPS54386EVM evaluation module (EVM) is a dual non-synchronous buck converter providing fixed 5.0-V and 3.3-V output at up to 2 A each from a 12-V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the TPS54386 (...)
Features
  • 12-V (+10% / -20%) Input Range
  • 5.0-V and 3.3-V Fixed Output Voltage, Adjustable with Resistor Change
  • 2-ADC Steady State Output Current (3 A Peak)
  • 600-kHz Switching Frequency (fixed by TPS54386)
  • Internal Switching MOSFET and External Rectifier Diode
  • Double Sided 2 Active Layer PCB (all components on top (...)

Design tools & simulation

SIMULATION MODEL Download
SLIM110A.ZIP (134 KB) - PSpice Model
SIMULATION MODEL Download
SLUM039.ZIP (165 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLUM040.ZIP (165 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLUM041.ZIP (4 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLUM075.TSC (2104 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLUM076.TSM (25 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLUM091A.ZIP (115 KB) - PSpice Model
SIMULATION TOOL 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
Isolated IGBT Gate Driver Evaluation Platform for 3-Phase Inverter System Reference Design
TIDA-00195 The TIDA-00195 reference design consists of a 22kW power stage with TI’s new reinforced isolated IGBT gate driver ISO5852S intended for motor control in various applications. This design allows performance evaluation of the ISO5852S in 3-phase inverter incorporating 1200V rated IGBT modules of (...)
document-generic Schematic
REFERENCE DESIGNS Download
12V to 24V Dual Output Buck Converter
PMP3022 — At the heart of this design is the TPS54286, which is a dual output non-synchronous buck converter capable of supporting 2-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.
Design files

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 14 View options

Ordering & quality

Information included:
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  • 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.

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