Home Power management DC/DC power modules Power modules (integrated inductor)

TPSM82813

ACTIVE

6V 3A step-down module with optional frequency synchronization, adjustable soft-start and tracking

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Module Iout (max) (A) 3 Vin (min) (V) 2.75 Vin (max) (V) 6 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features EMI Tested, Enable, Frequency synchronization, Light Load Efficiency, Output discharge, Power good, Spread Spectrum, Tracking Control mode Peak current mode Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Module Iout (max) (A) 3 Vin (min) (V) 2.75 Vin (max) (V) 6 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features EMI Tested, Enable, Frequency synchronization, Light Load Efficiency, Output discharge, Power good, Spread Spectrum, Tracking Control mode Peak current mode Duty cycle (max) (%) 100
uSIP (SIL) 14 12 mm² 4 x 3
  • Input voltage range: 2.75 V to 6 V
  • Output voltage range: 0.6 V to 5.5 V
  • Adjustable and synchronizable switching frequency of 1.8 MHz to 4 MHz
  • Spread spectrum clocking - optional
  • Selectable forced PWM or PFM/PWM operation

  • Output voltage accuracy ±1% (PWM operation)
  • Power-good output with window comparator
  • 100% duty cycle
  • Output discharge
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 15-µA typical quiescent current
  • Adjustable soft-start or tracking
  • Input voltage range: 2.75 V to 6 V
  • Output voltage range: 0.6 V to 5.5 V
  • Adjustable and synchronizable switching frequency of 1.8 MHz to 4 MHz
  • Spread spectrum clocking - optional
  • Selectable forced PWM or PFM/PWM operation

  • Output voltage accuracy ±1% (PWM operation)
  • Power-good output with window comparator
  • 100% duty cycle
  • Output discharge
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 15-µA typical quiescent current
  • Adjustable soft-start or tracking

TPSM8281x is a family of pin-to-pin 3-A and 4-A compatible high efficiency and easy to use synchronous step-down DC/DC power modules with integrated inductors. They are based on a fixed-frequency peak current-mode control topology. They are used in telecommunication, test and measurement, and medical applications with high power density and ease of use requirements. Low resistance switches allow up to 4-A continuous output current at high ambient temperatures. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PFM/PWM mode, the TPSM8281x automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. The TPSM8281x provides a 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin sets the start-up time or tracks the output voltage to an external source. This allows external sequencing of different supply rails and limits the inrush current during start-up.

TPSM8281x is a family of pin-to-pin 3-A and 4-A compatible high efficiency and easy to use synchronous step-down DC/DC power modules with integrated inductors. They are based on a fixed-frequency peak current-mode control topology. They are used in telecommunication, test and measurement, and medical applications with high power density and ease of use requirements. Low resistance switches allow up to 4-A continuous output current at high ambient temperatures. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PFM/PWM mode, the TPSM8281x automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. The TPSM8281x provides a 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin sets the start-up time or tracks the output voltage to an external source. This allows external sequencing of different supply rails and limits the inrush current during start-up.

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Technical documentation

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Type Title Date
* Data sheet TPSM8281x 2.75-V to 6-V Input 4-A and 3-A Step-Down MicroSiP™ Power Module with Integrated Inductor and Frequency Synchronization datasheet (Rev. A) PDF | HTML 03 Dec 2020
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
EVM User's guide TPSM8281xEVM-089 Evaluation Module (Rev. A) PDF | HTML 09 Dec 2022
Application note Intro to Multi-Function Pins and Their Applications in TI Step-Down Converters (Rev. A) PDF | HTML 17 Nov 2022
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 23 May 2022
Application note Understanding SOA Curves to Operate at High Output Currents and Temperature PDF | HTML 05 May 2022
Application note How to Measure Impedance of a Power Distribution Network of a DC-DC Converter PDF | HTML 20 Jan 2022
Application note Loop Gain Reconstruction of a Step-Down Converter from Output Impedance PDF | HTML 20 Jan 2022
User guide Manufacturing and Rework Design Guide for MicroSiP™ Power Modules (Rev. A) PDF | HTML 16 Jun 2021
Application brief Achieving High Thermal Performance in Compact Buck Power Modules PDF | HTML 24 Feb 2021
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 14 Oct 2019
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 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 threshold 24 Oct 2017
Analog Design Journal Improving the thermal performance of a MicroSiP(TM) power module 24 Jul 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 Oct 2016
Analog Design Journal Adjusting the soft-start time of an integrated power module 26 Apr 2016
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 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
More literature Описание TPS8267xSiP 22 Mar 2011

Design & development

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

Evaluation board

TPSM82810EVM-089 — 4-A step-down converter with integrated inductor evaluation module

The TPSM82810EVM-089 evaluation module (EVM) facilitates the evaluation of the TPSM82810, a 4-A pin-to-pin compatible step-down power module with frequency synchronization in a 3-mm × 4-mm x 2.4-mm MicroSiP package. The EVM provides a 1.8-V output voltage with 1% accuracy for input voltages from (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPSM82816EVM-089 — TPSM82816 evaluation module for 6-A step-down converter with integrated inductor

The TPSM82816EVM-089 evaluation module (EVM) facilitates the evaluation of the TPSM82816, a 6 A pin-to-pin compatible step-down power module with frequency synchronization in a 3 mm × 4 mm x 1.6 mm MicroSiP package. The EVM provides a 1.8 V output voltage with 1% accuracy for input voltages from (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPSM82813 PSpice Unencrypted Transient Model (Rev. B)

SLUM700B.ZIP (83 KB) - PSpice Model
Calculation tool

SLVC780 Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
Supported products & hardware

Supported products & hardware

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DCS-Control in 3x3 QFN package TPS62140A 3–17V 2A Step-Down Converter with DCS-Control in 3x3 QFN package TPS62147 3-17V 2.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN TPS62148 3-17V 2.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN TPS62150 3–17V 1A Step-Down Converter with DCS-Control in 3x3 QFN package TPS62150A 3-17V 1A 3MHz Step-Down Converter with DCS-Control in 3x3 QFN Package TPS62150A-Q1 TPS62150A-Q1 3 to 17-V 1-A AUTOMOTIVE Step-Down Converter in 3 × 3 QFN Package TPS62160 3V-17V 1A Step-Down Converters with DCS-Control™ TPS62160-Q1 3V-17V 1A Automotive Step-Down Converters in 2x2SON TPS62170 3–17V 0.5A Step-Down Converter with DCS-Control in 2x2 QFN package TPS62170-Q1 3-17V 0.5A Automotive Step-Down Converter in 2x2 QFN package TPS62175 28V, 0.5A Step-Down Converter with SNOOZE Mode TPS62180 4-V to 15-V, 6-A synchronous buck converter with power good, 1% accuracy, and adjustable soft start TPS62184 4-V to 17-V, 6-A synchronous 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Soft-start and Optional TPS62510 Adjustable, 96% Efficiency, 1.5A Buck Converter for low input voltages TPS62560 2.25MHz 600mA Step-Down Converter in 2x2mm SON Package TPS62561 2.25MHz 600mA Step-Down Converter in TSOT23 Package TPS62590 2.25MHz, 1A Step-Down Converter in 2 x 2 SON Package TPS62590-Q1 Automotive 2.5V to 6V, 2.25MHz Fixed Frequency 1A Buck Converter in 2x2mm SON Package TPS62750 2.25MHz, Step-Down Converter w/ Programmable Input Current Limits for USB powered Applications TPS62751 2.25MHz, Step-Down Converter w/ Programmble Input Current Limits for USB powered Applications TPS62770 Tiny Single-chip Dual Solution with 360nA Iq Buck and up to 15V Boost in WCSP TPS62810-Q1 Automotive 2.75-V to 6-V, 4-A step-down converter in a 2mm x 3mm wettable-flanks QFN package TPS62810M 2.75-V to 6-V, 4-A step-down converter in a 2-mm x 3-mm QFN package with -55C extended temperature TPS62821 2.4-V to 5.5-V input, 1-A step-down converter with 1% accuracy in 1.5-mm x 2-mm VSON-HR package TPS62822 2.4-V to 5.5-V input, 2-A step-down converter with 1% accuracy in 1.5-mm x 2-mm VSON-HR package TPS62823 2.4-V to 5.5-V input, 3-A step-down converter with 1% accuracy in 1.5-mm x 2-mm VSON-HR package TPS62825 2.4-V to 5.5-V input, 2-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm QFN TPS62826 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 TPS62827 2.5-V to 5.5-V input, 4-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm QFN
Gerber file

BSR089B Gerber

SLUC713.ZIP (450 KB)
Package Pins CAD symbols, footprints & 3D models
uSIP (SIL) 14 Ultra Librarian

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