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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 Small modules with 34-mm2 BOM area and 1.4-mm profile

Product details

Iout (Max) (A) 6 Vin (Min) (V) 2.4 Vin (Max) (V) 5.5 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Soft start Adjustable Features EMI Tested, Enable, Light Load Efficiency, Output Discharge, Power Good, Tracking Iq (Typ) (uA) 23 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 3000 Switching frequency (Min) (kHz) 2000 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
Iout (Max) (A) 6 Vin (Min) (V) 2.4 Vin (Max) (V) 5.5 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Soft start Adjustable Features EMI Tested, Enable, Light Load Efficiency, Output Discharge, Power Good, Tracking Iq (Typ) (uA) 23 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 3000 Switching frequency (Min) (kHz) 2000 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
QFM (MOP) 24 28 mm² 3.6 x 7.9
  • Ultra small 3.6 × 7.9 × 1.55 mm power module
  • CISPR11 Class B compliant
  • Feedback voltage accuracy: ±1%
  • Input voltage range: 2.4 V to 5.5 V
  • Output voltage range: 0.6 V to 5.5 V
  • Output current: 6-A with no derating at TA = 85 °C
  • Typical quiescent current: 23 µA
  • Output voltage select (two user-defined values)
  • Phase-shifted operation
  • Automatic power save mode or forced PWM option
  • Adjustable soft-start and tracking
  • Power good and thermal good outputs
  • Undervoltage lockout protection
  • Overcurrent and short-circuit protection
  • Over-temperature protection
  • Operating temperature range: –40°C to 125°C
  • Ultra small 3.6 × 7.9 × 1.55 mm power module
  • CISPR11 Class B compliant
  • Feedback voltage accuracy: ±1%
  • Input voltage range: 2.4 V to 5.5 V
  • Output voltage range: 0.6 V to 5.5 V
  • Output current: 6-A with no derating at TA = 85 °C
  • Typical quiescent current: 23 µA
  • Output voltage select (two user-defined values)
  • Phase-shifted operation
  • Automatic power save mode or forced PWM option
  • Adjustable soft-start and tracking
  • Power good and thermal good outputs
  • Undervoltage lockout protection
  • Overcurrent and short-circuit protection
  • Over-temperature protection
  • Operating temperature range: –40°C to 125°C

The TPSM82480 is a synchronous step-down DC-DC converter module for low profile point-of-load power supplies. The input voltage range of 2.4 V to 5.5 V enables operation from typical 3.3-V or 5-V interface supplies as well as from backup circuits dropping down as low as 2.4 V.

The output current is up to 6 A continuously provided by two phases of 3 A each, which run out-of-phase, reducing pulse current noise significantly.

The TPSM82480 provides an automatically entered power save mode to maintain high efficiency down to very light loads. This incorporates an automatic phase adding and shedding feature using both or only one phase according to the actual load. The power save mode can be switched off using the MODE feature.

The device offers a power good signal and an adjustable soft-start period. Also, the device features a thermal good signal to indicate excessive internal temperature. The output voltage can be changed to a preselected value by VSEL pin. TPSM82480 is able to operate in 100% duty cycle mode.

The TPSM82480 is a synchronous step-down DC-DC converter module for low profile point-of-load power supplies. The input voltage range of 2.4 V to 5.5 V enables operation from typical 3.3-V or 5-V interface supplies as well as from backup circuits dropping down as low as 2.4 V.

The output current is up to 6 A continuously provided by two phases of 3 A each, which run out-of-phase, reducing pulse current noise significantly.

The TPSM82480 provides an automatically entered power save mode to maintain high efficiency down to very light loads. This incorporates an automatic phase adding and shedding feature using both or only one phase according to the actual load. The power save mode can be switched off using the MODE feature.

The device offers a power good signal and an adjustable soft-start period. Also, the device features a thermal good signal to indicate excessive internal temperature. The output voltage can be changed to a preselected value by VSEL pin. TPSM82480 is able to operate in 100% duty cycle mode.

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Technical documentation

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Type Title Date
* Data sheet TPSM82480 5.5-V Input, 6-A, Step-Down Converter Module with Integrated Inductor datasheet (Rev. C) PDF | HTML 01 Jun 2020
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 23 May 2022
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 Mar 2021
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin t 24 Oct 2017
EVM User's guide TPSM82480EVM-002 Evaluation Module 02 Aug 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input volt 24 Oct 2016

Design & development

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

Evaluation board

TPSM82480EVM-002 — TPSM82480 5.5-V Input, 6-A, Step-Down Converter With Integrated Inductor Evaluation Module

The TPSM82480EVM-BSR002 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPSM82480. The EVM converts a 2.4-V to 5.5-V input voltage to a regulated output voltage of 1.8V at up to 6A output current. The TPSM82480 comes in a small (...)
User guide: PDF
Not available on TI.com
Simulation model

TPSM82480 PSpice Unencrypted Transient Model (Rev. B)

SLVMC67B.ZIP (160 KB) - PSpice Model
Simulation model

TPSM82480 TINA-TI Startup Transient Model

SLVMDC6.TSC (1722 KB) - TINA-TI Spice Model
Simulation model

TPSM82480 TINA-TI Steady State Transient Model

SLVMDC7.TSC (1739 KB) - TINA-TI Spice 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 (...)
Gerber file

TPSM82480 Gerber

SLVC751.ZIP (412 KB)
Reference designs

TIDA-010011 — High efficiency power supply architecture reference design for protection relay processor module

This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
Schematic: PDF
Package Pins Download
QFM (MOP) 24 View options

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