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TPSM82821

ACTIVE

5.5-V input, 1-A step-down module with integrated inductor in 2 x 2.5 x 1.1-mm μSIP package

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Data sheet

TPSM82821

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck, Step-Down Converter, Synchronous Buck Iout (max) (A) 1 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 4 Vout (min) (V) 0.6 Features EMI Tested, Enable, Light Load Efficiency, Output discharge, Power good Operating temperature range (°C) -40 to 125 Switch current limit (typ) (A) 2.2 Type Converter (Integrated Switch), DC/DC converter, Module Duty cycle (max) (%) 100 Control mode COT, Constant on-time (COT), DCS-Control Switching frequency (min) (kHz) 4000 Switching frequency (max) (kHz) 4000
Rating Catalog Topology Buck, Step-Down Converter, Synchronous Buck Iout (max) (A) 1 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 4 Vout (min) (V) 0.6 Features EMI Tested, Enable, Light Load Efficiency, Output discharge, Power good Operating temperature range (°C) -40 to 125 Switch current limit (typ) (A) 2.2 Type Converter (Integrated Switch), DC/DC converter, Module Duty cycle (max) (%) 100 Control mode COT, Constant on-time (COT), DCS-Control Switching frequency (min) (kHz) 4000 Switching frequency (max) (kHz) 4000
USIP (SIL) 10 See data sheet

  • 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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Technical documentation

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* 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 Nov 22, 2021
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML Dec 6, 2023
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML May 23, 2022
User guide TPSM8282xEVM-080 and TPSM8282xAEVM-127 Evaluation Modules User's Guide (Rev. D) PDF | HTML Nov 12, 2021
Functional safety information TPSM8282x/A Pin Failure Mode Analysis (Pin FMA) PDF | HTML Sep 27, 2021
User guide Manufacturing and Rework Design Guide for MicroSiP™ Power Modules (Rev. A) PDF | HTML Jun 16, 2021
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power PDF | HTML Mar 22, 2021
Application brief Achieving High Thermal Performance in Compact Buck Power Modules PDF | HTML Feb 24, 2021
Analog design Journal Methods of output-voltage adjustment for DC/DC converters Jun 14, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec 11, 2018
Analog design Journal Understanding 100% mode in low-power DC/DC converters Jun 22, 2018
Analog design Journal Improving the thermal performance of a MicroSiP(TM) power module Jul 24, 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun 15, 2017
Analog design Journal Testing tips for applying external power to supply outputs without an input voltage Oct 24, 2016
Analog design Journal Adjusting the soft-start time of an integrated power module Apr 26, 2016
Analog design Journal Understanding frequency variation in the DCS-Control(TM) topology Oct 30, 2015
Analog design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions Jul 25, 2013
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep 19, 2011
Analog design Journal 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.

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 (...)

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Simulation model

TPSM82821 PSpice Unencrypted Transient Model (Rev. B)

SLVMD66B.ZIP (92 KB) - PSpice model
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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
Reference design

TIDA-010936 — 48V/16A small form factor three-phase GaN inverter reference design for integrated motor drives

This reference design demonstrates a high-power density 12V to 60V three-phase power stage using three LMG2100R044 100V, 35A gallium nitride (GaN) half-bridges with integrated GaN FETs, driver and bootstrap diode specifically for motor-integrated servo drives and robotics applications. Accurate (...)
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USIP (SIL) 10 Ultra Librarian
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