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TPS62085

ACTIVE

3-A Step-Down Converter with DCS-Control and Hiccup Short Circuit Protection in 2x2 HotRod Package

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TPS62826 ACTIVE 2.4-V-5.5-V input, 3-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm VSON-HR package Smaller 1.5-mm x 1.5-mm QFN pin-to-pin compatible family 1 A, 2 A, 3 A and 4 A

Product details

Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 6 Iout (max) (A) 3 Iq (typ) (mA) 0.017 Switching frequency (min) (kHz) 2400 Switching frequency (max) (kHz) 2400 Features Enable, Light load efficiency, Load Disconnect, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Constant on-time (COT), DCS-Control Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 6 Iout (max) (A) 3 Iq (typ) (mA) 0.017 Switching frequency (min) (kHz) 2400 Switching frequency (max) (kHz) 2400 Features Enable, Light load efficiency, Load Disconnect, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO fixed Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Constant on-time (COT), DCS-Control Duty cycle (max) (%) 100 Type Converter
VSON-HR (RLT) 7 4 mm² 2 x 2
  • DCS-Control™ topology
  • Up to 95% efficiency
  • Hiccup short-circuit protection
  • Power save mode for light load efficiency
  • 100% duty cycle for lowest dropout
  • 2.5-V to 6.0-V input voltage range
  • 17-µA operating quiescent current
  • 0.8-V to VIN adjustable output voltage
  • 1.8-V and 3.3-V fixed output voltage
  • Output discharge
  • Power good output
  • Thermal shutdown protection
  • Available in 2-mm × 2-mm VSON package
  • Create a custom design using the:
  • DCS-Control™ topology
  • Up to 95% efficiency
  • Hiccup short-circuit protection
  • Power save mode for light load efficiency
  • 100% duty cycle for lowest dropout
  • 2.5-V to 6.0-V input voltage range
  • 17-µA operating quiescent current
  • 0.8-V to VIN adjustable output voltage
  • 1.8-V and 3.3-V fixed output voltage
  • Output discharge
  • Power good output
  • Thermal shutdown protection
  • Available in 2-mm × 2-mm VSON package
  • Create a custom design using the:

The TPS62085, TPS62086, and TPS62087 devices are high-frequency synchronous step-down converters optimized for small solution size and high efficiency. With an input voltage range of 2.5 V to 6.0 V, common battery technologies are supported. The devices focus on high-efficiency step-down conversion over a wide output current range. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current range.

To address the requirements of system power rails, the internal compensation circuit allows a large selection of external output capacitor values ranging from 10 µF to 150 µF. Together with its DCS-Control architecture, excellent load transient performance and output voltage regulation accuracy are achieved. The devices are available in a 2-mm × 2-mm VSON package.

The TPS62085, TPS62086, and TPS62087 devices are high-frequency synchronous step-down converters optimized for small solution size and high efficiency. With an input voltage range of 2.5 V to 6.0 V, common battery technologies are supported. The devices focus on high-efficiency step-down conversion over a wide output current range. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current range.

To address the requirements of system power rails, the internal compensation circuit allows a large selection of external output capacitor values ranging from 10 µF to 150 µF. Together with its DCS-Control architecture, excellent load transient performance and output voltage regulation accuracy are achieved. The devices are available in a 2-mm × 2-mm VSON package.

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Technical documentation

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Type Title Date
* Data sheet TPS6208x, 3-A Step-Down Converter With Hiccup Short-Circuit Protection in 2-mm × 2-mm VSON Package datasheet (Rev. C) PDF | HTML 08 Jan 2021
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 23 May 2022
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note QFN and SON PCB Attachment (Rev. B) PDF | HTML 24 Aug 2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin t 24 Oct 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input volt 24 Oct 2016
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 30 Oct 2015
Technical article Is a power module always the optimal solution for your space constrained SSD? 17 Oct 2015
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Technical article Smaller size now possible in 3A point-of-load converters 03 Jun 2015
Technical article How to do a Schematic Review for a low-power DC/DC converter design 06 Feb 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Analog Design Journal Analog Applications Journal 4Q 2014 24 Oct 2014
Analog Design Journal Power-supply sequencing for FPGAs 24 Oct 2014
EVM User's guide User's Guide for TPS62085EVM_169 04 Oct 2013
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 25 Jul 2013
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) 09 Aug 2012
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011

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Simulation model

TPS62085 PSpice Unencrypted Transient Model (Rev. B)

SLVM943B.ZIP (45 KB) - PSpice Model
Gerber file

TPS62085EVM-169 Gerbers

SLVC534.ZIP (287 KB)
Simulation tool

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

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