Product details

Iout (Max) (A) 1 Vin (Min) (V) 2.4 Vin (Max) (V) 5.5 Vout (Min) (V) 0.6 Vout (Max) (V) 4 Soft start Fixed Features EMI Tested, Enable, Light Load Efficiency, Output Discharge, Power Good Iq (Typ) (uA) 4 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 4000 Switching frequency (Min) (kHz) 4000 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
Iout (Max) (A) 1 Vin (Min) (V) 2.4 Vin (Max) (V) 5.5 Vout (Min) (V) 0.6 Vout (Max) (V) 4 Soft start Fixed Features EMI Tested, Enable, Light Load Efficiency, Output Discharge, Power Good Iq (Typ) (uA) 4 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 4000 Switching frequency (Min) (kHz) 4000 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
uSiP (SIL) 10
  • 1.1-mm profile MicroSiP™ power module

  • CISPR 11 class B compliant
  • Up to 95% efficiency
  • 2.4-V to 5.5-V input voltage range
  • 0.6-V to 4-V adjustable output voltage
  • Fixed output voltages available: 1.2-V, 1.8-V, 2.5-V and 3.3-V
  • 4-µA operating quiescent current
  • DCS-control topology
  • Power save mode option available for light load efficiency
  • Forced-PWM option available for CCM operation

  • 100% duty cycle for lowest dropout
  • Hiccup short circuit protection
  • Output discharge
  • Power good output with window comparator
  • Integrated soft start-up
  • Overtemperature protection
  • PSPICE models available for: TPSM82821, TPSM82822 and TPSM82823
  • 2.0-mm × 2.5-mm × 1.1-mm 10-pin µSiL package
  • 12 mm2 total solution size (for the fixed output voltage versions)
  • 1.1-mm profile MicroSiP™ power module

  • CISPR 11 class B compliant
  • Up to 95% efficiency
  • 2.4-V to 5.5-V input voltage range
  • 0.6-V to 4-V adjustable output voltage
  • Fixed output voltages available: 1.2-V, 1.8-V, 2.5-V and 3.3-V
  • 4-µA operating quiescent current
  • DCS-control topology
  • Power save mode option available for light load efficiency
  • Forced-PWM option available for CCM operation

  • 100% duty cycle for lowest dropout
  • Hiccup short circuit protection
  • Output discharge
  • Power good output with window comparator
  • Integrated soft start-up
  • Overtemperature protection
  • PSPICE models available for: TPSM82821, TPSM82822 and TPSM82823
  • 2.0-mm × 2.5-mm × 1.1-mm 10-pin µSiL package
  • 12 mm2 total solution size (for the fixed output voltage versions)

The TPSM8282x device family consists of a 1-A, 2-A, and 3-A step-down converter MicroSiP™ power modules optimized for small solution size and high efficiency.

The power modules integrate a synchronous step-down converter and an inductor to simplify design, reduce external components and save PCB area. The TPSM8282x 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 version, the TPSM8282xA, runs in forced-PWM maintaining a continuous conduction mode at all currents to minimize the output ripple. In PWM mode the converter operates with a nominal switching frequency of 4MHz.

In power save mode, the device operates with typically 4-µA quiescent current. Using the DCS-Control topology, the device achieves excellent load transient performance and accurate output voltage regulation. The EN and PG pins, which support sequencing configurations, bring a flexible system design. An integrated soft start-up reduces the inrush current required from the input supply. Overtemperature protection and hiccup short circuit protection deliver a robust and reliable solution.

The TPSM8282x device family consists of a 1-A, 2-A, and 3-A step-down converter MicroSiP™ power modules optimized for small solution size and high efficiency.

The power modules integrate a synchronous step-down converter and an inductor to simplify design, reduce external components and save PCB area. The TPSM8282x 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 version, the TPSM8282xA, runs in forced-PWM maintaining a continuous conduction mode at all currents to minimize the output ripple. In PWM mode the converter operates with a nominal switching frequency of 4MHz.

In power save mode, the device operates with typically 4-µA quiescent current. Using the DCS-Control topology, the device achieves excellent load transient performance and accurate output voltage regulation. The EN and PG pins, which support sequencing configurations, bring a flexible system design. An integrated soft start-up reduces the inrush current required from the input supply. Overtemperature protection and hiccup short circuit protection deliver a robust and reliable solution.

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TPSM82821A ACTIVE 5.5-V input, 1-A step-down converter with integrated inductor and forced PWM mode in µSiP package Forced-PWM operation and 23-mm² total BOM size.
TPSM82822 ACTIVE 5.5-V input, 2-A step-down module with integrated inductor in 2 x 2.5 x 1.1-mm μSIP package Higher output current module alternative.
Similar functionality to the compared device.
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Technical documentation

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Type Title Date
* Data sheet TPSM8282x, TPSM8282xA 1-A, 2-A, and 3-A High Efficiency Step-Down Converter MicroSiP™ Power Module with Integrated Inductor datasheet (Rev. F) PDF | HTML 22 Nov 2021
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 23 May 2022
User guide TPSM8282xEVM-080 and TPSM8282xAEVM-127 Evaluation Modules User's Guide (Rev. D) PDF | HTML 12 Nov 2021
Functional safety information TPSM8282x/A Pin Failure Mode Analysis (Pin FMA) PDF | HTML 27 Sep 2021
User guide Manufacturing and Rework Design Guide for MicroSiP™ Power Modules (Rev. A) PDF | HTML 16 Jun 2021
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 Mar 2021
Application note Achieving High Thermal Performance in Compact Buck Power Modules PDF | HTML 24 Feb 2021
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
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 Improving the thermal performance of a MicroSiP(TM) power module 24 Jul 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 Adjusting the soft-start time of an integrated power module 26 Apr 2016
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 30 Oct 2015
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 25 Jul 2013
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

TPSM82821EVM-080 — 1-A step-down converter with integrated inductor evaluation module

The TPSM82821EVM-080 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPSM82821 power module. The EVM converts a 2.4-V to 5.5-V input voltage to a 1.8-V regulated output voltage at up to 1-A of output current. The TPSM82821 (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPSM82821 PSpice Unencrypted Transient Model (Rev. B)

SLVMD66B.ZIP (92 KB) - PSpice Model
Simulation tool

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

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 (...)
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