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Product details

Parameters

Vin (Min) (V) 2.4 Vin (Max) (V) 5.5 Vout (Min) (V) 0.6 Vout (Max) (V) 4 Iout (Max) (A) 3 Iq (Typ) (uA) 4 Switching frequency (Min) (kHz) 2200 Switching frequency (Max) (kHz) 2200 Features Enable, Light Load Efficiency, Output Discharge, Over Current Protection, Power Good, Pre-Bias Start-Up, Synchronous Rectification, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VSON-HR (DMQ) 6 2 mm² 1.5 x 1.5 open-in-new Find other Buck converters (integrated switch)

Features

  • Available as an integrated-inductor power module: TPSM82821 and TPSM82822
  • DCS-Control™ topology
  • 1% feedback or output voltage accuracy (full temperature range)
  • Up to 97% efficiency
  • 26-mΩ and 25-mΩ internal power MOSFETs
  • 2.4-V to 5.5-V input voltage range
  • 4-µA operating quiescent current
  • 2.2-MHz switching frequency
  • Adjustable output voltage from 0.6 V to 4 V
  • Power save mode for light load efficiency
  • 100% duty cycle for lowest dropout
  • Active output discharge
  • Power good output
  • Thermal shutdown protection
  • Hiccup short-circuit protection
  • A forced-PWM version for CCM operation
  • Create a custom design using the TPS6282x with the WEBENCH Power Designer

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Description

The TPS6282x is an easy-to-use synchronous step-down DC-DC converters family with a very low quiescent current of only 4 µA. Based on the DCS-Control topology, it provides a fast transient response. The internal reference allows to regulate the output voltage down to 0.6 V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The family devices are pin-to-pin and BOM-to-BOM compatible. The entire solution requires a small 470-nH inductor, a single 4.7-µF input capacitor and two 10-µF or single 22-µF output capacitor.

The TPS6282x is available in two flavors. The first includes an automatically entered power save mode to maintain high efficiency down to very light loads for extending the system battery run-time. The second runs in forced-PWM maintaining a continuous conduction mode to ensure the least ripple in the output voltage and a quasi-fixed switching frequency. The device features a Power Good signal and an internal soft start circuit. It is able to operate in 100% mode. For fault protection, it incorporates a HICCUP short circuit protection as well as a thermal shutdown. The device is available in a 6-pin 1.5 x 1.5-mm QFN package, offering the highest power density solution.

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NEW TPS62826A PREVIEW 2.4-V to 5.5-V input, 3-A step-down converter with forced PWM in 1.5-mm×1.5-mm QFN package Pin-to-pin buck converter with forced PWM mode for low ripple

Technical documentation

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Type Title Date
* Datasheet TPS6282x 2.4-V to 5.5-V Input, 1-, 2-, 3-, 4-A Step-down Converter with 1% Output Accuracy in 1.5-mm × 1.5-mm QFN Package datasheet (Rev. D) Oct. 16, 2020
Application note Powering VCCINT_VCU Rail in Xilinx® Zynq®UltraScale+™ Family of Multiprocessors Jun. 08, 2020
Selection guide Buck Converter Quick Reference Guide (Rev. A) Mar. 31, 2020
Application note Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Technical articles QFN soldering tips and tricks Nov. 26, 2018
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications Aug. 24, 2018
Application note Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Technical articles Output accuracy varies with temperature – 1% is not always 1% May 02, 2018
User guide TPS6282xEVM-794 Evaluation Module Mar. 26, 2018
Application note Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application note Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application note Understanding frequency variation in the DCS-Control(TM) topology Oct. 30, 2015
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application note Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application note Accurately measuring efficiency of ultralow-IQ devices Jan. 22, 2014
Application note High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions Jul. 25, 2013
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
Application note IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011

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 TPS62826EVM-794 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPS62826 DCS-Control step-down buck converter. The EVM converts a 2.4-V to 5.5-V input voltage to a 1% accuracy regulated output voltage of 1.8 V at up to 3-A (...)

Features
  • 2.4-V to 5.5-V input voltage range
  • 1.8-V output voltage (adjustable) with 1% accuracy
  • 3-A output current
  • Up to 97% efficiency
  • 1-mm maximum solution height
  • 4-μA operating quiescent current
  • 31-mm² total solution size
  • Pin-to-pin 2-A, 3-A, 4-A devices (TPS62825/6/7)

Design tools & simulation

SIMULATION MODEL Download
SLVMCK9A.ZIP (1100 KB) - PSpice Model
SIMULATION MODEL Download
SLVMCL0.ZIP (1135 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
  • (...)
GERBER FILE Download
SLVC714.ZIP (344 KB)
GERBER FILE Download
SLVC780.ZIP (138 KB)

CAD/CAE symbols

Package Pins Download
VSON-HR (DMQ) 6 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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