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TPS62480

ACTIVE

6A, 2.4V-5.5V input, Synchronous step-down converter with PG Output, Adjust. Soft-start and Optional

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Data sheet

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TPS62867 ACTIVE 2.4-V to 5.5-V input, 6-A synchronous step-down converter in 1.5-mm x 2.5-mm QFN package Newer generation of 6-A devices with <30mm² total BOM size.
TPS62869 ACTIVE 5.5-V 6-A synchronous step-down converter with I²C interface in 1.5-mm x 2.5-mm QFN package Newer generation alternative with I2C interface and smaller solution size.

TPS62480

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck, Step-Down Converter, Synchronous Buck Iout (max) (A) 6 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Multiphase, Output discharge, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO fixed, Voltage Margining Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000023 Duty cycle (max) (%) 100
Rating Catalog Topology Buck, Step-Down Converter, Synchronous Buck Iout (max) (A) 6 Vin (max) (V) 5.5 Vin (min) (V) 2.4 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Multiphase, Output discharge, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO fixed, Voltage Margining Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000023 Duty cycle (max) (%) 100
VQFN-HR (RNC) 16 7.5 mm² 2.5 x 3
  • Dual Phase Current Mode Topology
  • Input Voltage Range 2.4 to 5.5 V
  • Output Voltage Range 0.6 to 5.5 V
  • Output Current of 6 A
  • Typical Quiescent Current of 23 µA
  • Feedback Voltage Accuracy of ±1% (PWM Mode)
  • Output Voltage Select
  • Phase Shifted Operation
  • Automatic Power Save Modes
  • Forced PWM Mode
  • Adjustable Soft Start
  • Power Good / Thermal Good Outputs
  • Undervoltage Lockout
  • Overcurrent and Short-Circuit Protection
  • Overtemperature Protection
  • 3 × 2.5 mm HotRod™ Package
  • Dual Phase Current Mode Topology
  • Input Voltage Range 2.4 to 5.5 V
  • Output Voltage Range 0.6 to 5.5 V
  • Output Current of 6 A
  • Typical Quiescent Current of 23 µA
  • Feedback Voltage Accuracy of ±1% (PWM Mode)
  • Output Voltage Select
  • Phase Shifted Operation
  • Automatic Power Save Modes
  • Forced PWM Mode
  • Adjustable Soft Start
  • Power Good / Thermal Good Outputs
  • Undervoltage Lockout
  • Overcurrent and Short-Circuit Protection
  • Overtemperature Protection
  • 3 × 2.5 mm HotRod™ Package

The TPS62480 is a synchronous 2-phase step-down DC-DC converter for low profile point-of-load power supplies. The input voltage range of 2.4 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, allowing the use of low-profile external components. Both the rails are running out of phase, reducing pulse current noise significantly.

The TPS62480 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 device features a Power Good signal and an adjustable soft start. Also, the device features a Thermal Good signal to detect excessive internal temperature. The output voltage can be changed to a preselected value by VSEL pin. TPS62480 is able to operate in 100% duty cycle mode.

The TPS62480 is packaged in a small 3 × 2.5 mm HotRod package (RNC).

The TPS62480 is a synchronous 2-phase step-down DC-DC converter for low profile point-of-load power supplies. The input voltage range of 2.4 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, allowing the use of low-profile external components. Both the rails are running out of phase, reducing pulse current noise significantly.

The TPS62480 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 device features a Power Good signal and an adjustable soft start. Also, the device features a Thermal Good signal to detect excessive internal temperature. The output voltage can be changed to a preselected value by VSEL pin. TPS62480 is able to operate in 100% duty cycle mode.

The TPS62480 is packaged in a small 3 × 2.5 mm HotRod package (RNC).
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS62480 2.4-V to 5.5-V, 6-A, 2-Phase Step-Down Converter datasheet (Rev. A) PDF | HTML 29 Feb 2016
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 23 May 2022
Selection guide Buck Converter Quick Reference Guide (Rev. B) 08 Apr 2021
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power 22 Mar 2021
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 threshold 24 Oct 2017
Technical article Small and efficient power supply for the Altera™ MAX® 10 FPGA PDF | HTML 24 Apr 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 Oct 2016
Technical article Using the thermal good function to increase reliability PDF | HTML 11 Oct 2016
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012

Design & development

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

Evaluation board

TMDX654IDKEVM — AM65x industrial development kit (IDK)

The AM65x industrial development kit (IDK) is a development platform for evaluating the industrial communication and control capabilities of Sitara™ AM65x processors for applications in factory automation, drives, robotics, grid infrastructure, and more. AM65x processors include three (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS62480EVM-671 — Evaluation Module for TPS62480, a 5.5-V Input, 6-A Output, 2-Phase Step-Down Converter

The TPS62480EVM-671 is designed to help the user easily evaluate and test the operation and functionality of the TPS62480. The EVM converts a 2.4-V to 5.5-V input voltage to a regulated output voltage of 1.8V at up to 6 A output current. The TPS62480 comes in a small 2.5 x 3.0 mm² VSON package.

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

TPS62480 PSpice Unencrypted Transient Model (Rev. B)

SLVMBH8B.ZIP (58 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

Supported products & hardware
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Reference designs

TIDA-01366 — Small, Efficient Power Supply Reference Design for Altera™ MAX® 10 FPGA for up to 125°C

TIDA-01366 (also known as PMP9799) was designed for Altera's MAX® 10 FPGA. This reference design uses three DC/DC converters to power the MAX-10 cost-effectively. This design supports numerous industrial applications and any application that requires a small, high efficiency, (...)
Design guide: PDF
Schematic: PDF
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VQFN-HR (RNC) 16 Ultra Librarian
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