6-A, 5.5-V Input step-down power module with PG, MODE, and VSEL options


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 Operating temperature range (C) -40 to 125 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 open-in-new Find other Buck modules (integrated inductor)

Package | Pins | Size

QFM (MOP) 24 28 mm² 3.6 x 7.9 open-in-new Find other Buck modules (integrated inductor)


  • 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
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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) Jun. 01, 2020
Application note A Topical Index of TI Low Power Buck DC/DC Application Notes (Rev. A) Jun. 25, 2021
White paper Enabling Higher Data Rates for Optical Modules With Small and Efficient Power Mar. 22, 2021
Application note Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
User guide TPSM82480EVM-002 Evaluation Module Aug. 02, 2017
Application note Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016

Design & development

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

Hardware development

document-generic User guide
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 7.9 (...)
  • Dual Phase Current Mode Topology
  • Output Current of 6A
  • Output Voltage Accuracy of ±1% (PWM Mode)
  • Phase Shifted Operation
  • Adjustable Soft Start

Design tools & simulation

SLVMC67B.ZIP (160 KB) - PSpice Model
SLVMDC6.TSC (1722 KB) - TINA-TI Spice Model
SLVMDC7.TSC (1739 KB) - TINA-TI Spice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SLVC751.ZIP (412 KB)

Reference designs

High efficiency power supply architecture reference design for protection relay processor module
TIDA-010011 — 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 (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
QFM (MOP) 24 View options

Ordering & quality

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