NEW

TPSM82864A

ACTIVE

2.4-V to 5.5-V Input, 4-A thin step-down power module with integrated inductor in 3.5-mm x 4-mm QFN

Product details

Iout (Max) (A) 4 Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Soft start Fixed Features EMI Tested, Enable, Light Load Efficiency, Output Discharge, Overcurrent protection, Power Good Iq (Typ) (uA) 4 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 2500 Switching frequency (Min) (kHz) 2200 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
Iout (Max) (A) 4 Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Soft start Fixed Features EMI Tested, Enable, Light Load Efficiency, Output Discharge, Overcurrent protection, Power Good Iq (Typ) (uA) 4 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 2500 Switching frequency (Min) (kHz) 2200 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
B0QFN (RDJ) 23 14 mm² 4 x 3.5
  • Up to 96% efficiency
  • Excellent thermal performance
  • CISPR-11 class-B compliant
  • 1% output voltage accuracy
  • DCS-Control topology for fast transient response
  • 1.4-mm or 1.8-mm ultra-low profile QFN package
  • 2.4-V to 5.5-V input voltage range
  • Same device part number provides either:
    • 0.6-V to VIN adjustable output voltage
    • 13 integrated fixed output voltage options
  • Power-good indicator with window comparator
  • 2.4-MHz switching frequency
  • Forced PWM or power save mode
  • 4-µA operating quiescent current
  • Output voltage discharge
  • 100% duty cycle mode
  • Hiccup short-circuit protection
  • Thermal shutdown
  • –40°C to 125°C operating temperature range
  • 3.5-mm × 4.0-mm QFN package with 0.5-mm pitch
  • 35-mm2 solution size
  • Up to 96% efficiency
  • Excellent thermal performance
  • CISPR-11 class-B compliant
  • 1% output voltage accuracy
  • DCS-Control topology for fast transient response
  • 1.4-mm or 1.8-mm ultra-low profile QFN package
  • 2.4-V to 5.5-V input voltage range
  • Same device part number provides either:
    • 0.6-V to VIN adjustable output voltage
    • 13 integrated fixed output voltage options
  • Power-good indicator with window comparator
  • 2.4-MHz switching frequency
  • Forced PWM or power save mode
  • 4-µA operating quiescent current
  • Output voltage discharge
  • 100% duty cycle mode
  • Hiccup short-circuit protection
  • Thermal shutdown
  • –40°C to 125°C operating temperature range
  • 3.5-mm × 4.0-mm QFN package with 0.5-mm pitch
  • 35-mm2 solution size

The TPSM8286xA device family consists of 4-A and 6-A step-down converter 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 low-profile and compact solution is suitable for automated assembly by standard surface mount equipment.

Tight output voltage accuracy, even with small output capacitors, is achieved though the DCS-Control architecture and its excellent load transient performance. 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. The devices can also be forced in PWM mode operation for the smallest output voltage ripple.

The EN and PG pins, which support sequencing configurations, bring a flexible system design. An integrated soft start reduces the inrush current required from the input supply. Overtemperature protection and hiccup short-circuit protection deliver a robust and reliable solution.

The TPSM8286xA device family consists of 4-A and 6-A step-down converter 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 low-profile and compact solution is suitable for automated assembly by standard surface mount equipment.

Tight output voltage accuracy, even with small output capacitors, is achieved though the DCS-Control architecture and its excellent load transient performance. 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. The devices can also be forced in PWM mode operation for the smallest output voltage ripple.

The EN and PG pins, which support sequencing configurations, bring a flexible system design. An integrated soft start 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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Pin-for-pin with same functionality to the compared device.
NEW TPSM82866A ACTIVE 2.4-V to 5.5-V Input, 6-A thin step-down power module with integrated inductor in 3.5-mm x 4-mm QFN Pin-to-pin compatible with 6-A output current.
Similar functionality to the compared device.
TPSM82480 ACTIVE 6-A, 5.5-V Input step-down power module with PG, MODE, and VSEL options Higher output current alternative with power good and thermal good outputs and V-SEL function.
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Technical documentation

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Type Title Date
* Data sheet TPSM82864A, TPSM82866A 2.4-V to 5.5-V Input, 4-A/6-A Step-Down Power Module with an Integrated Inductor in a 3.5-mm × 4.0-mm Thin Overmolded QFN Package datasheet (Rev. B) PDF | HTML 21 Nov 2022
EVM User's guide TPSM8286xAA0xEVM User's Guide (Rev. A) PDF | HTML 21 Nov 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 Understanding SOA Curves to Operate at High Output Currents and Temperature PDF | HTML 05 May 2022
Functional safety information TPSM82866A and TPSM82864A Pin Failure Mode Analysis (Pin FMA) PDF | HTML 03 Mar 2022
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 Mar 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
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
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 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 Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 22 Jan 2014
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 25 Jul 2013
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

Design & development

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

Evaluation board

TPSM82864AA0HEVM — TPSM82864A 4-A, 3.5-mm x 4-mm x 1.8-mm power module with integrated inductor evaluation module

The TPSM82864AA evaluation module (EVM) facilitates the evaluation of the TPSM82864A, a 4 A pin-to-pin compatible step-down power module with DCS-Control in a 3.5 mm × 4 mm x 1.8 mm overmolded QFN package. The EVM provides a 1.2 V output voltage with 1% accuracy for input voltages from 2.4 V to (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPSM82864AA0SEVM — TPSM82864A evaluation module 4-A, 3.5-mm x 4-mm x 1.4-mm power module with integrated inductor

The TPSM82864AA0SEVM evaluation module (EVM) facilitates the evaluation of the TPSM82864A, a 4-A pin-to-pin compatible step-down power module with DCS-Control in a 3.5-mm × 4-mm x 1.4-mm overmolded QFN package. The EVM provides a 1.2-V output voltage with 1% accuracy for input voltages from (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPSM82866AA0HEVM — TPSM82866A 6-A, 3.5-mm x 4-mm x 1.8-mm power module with integrated inductor evaluation module

The TPSM82866A evaluation module (EVM) facilitates the evaluation of the TPSM82866A, a 6 A pin-to-pin compatible step-down power module with DCS-Control in a 3.5 mm × 4 mm x 1.8 mm overmolded QFN package. The EVM provides a 1.2 V output voltage with 1% accuracy for input voltages from 2.4 V to 5.5 (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPSM82866AA0SEVM — TPSM82866A evaluation module 6-A, 3.5-mm x 4-mm x 1.4-mm power module with integrated inductor

The TPSM82866AA0SEVM evaluation module (EVM) facilitates the evaluation of the TPSM82866A, a 6-A pin-to-pin compatible step-down power module with DCS-Control in a 3.5-mm × 4-mm x 1.4-mm overmolded QFN package. The EVM provides a 1.2-V output voltage with 1% accuracy for input voltages from (...)
User guide: PDF | HTML
Not available on TI.com
Gerber file

BSR182A Gerber

SLVC828.ZIP (432 KB)
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 (...)
Package Pins Download
B0QFN (RDJ) 23 View options

Ordering & quality

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  • Ongoing reliability monitoring

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