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TPSM863253

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3V to 17V input voltage, 3.3V, 3A output synchronous buck module in QFN package

Product details

Iout (max) (A) 3 Vin (min) (V) 3.6 Vin (max) (V) 17 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Soft start Fixed Features Enable, Fixed Output, Fixed PWM Mode, Over Current Protection, Soft Start Fixed Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.1 Regulated outputs (#) 1 Switching frequency (max) (kHz) 1200 Duty cycle (max) (%) 95 Topology Synchronous Buck Type Module Rating Catalog Control mode D-CAP3
Iout (max) (A) 3 Vin (min) (V) 3.6 Vin (max) (V) 17 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Soft start Fixed Features Enable, Fixed Output, Fixed PWM Mode, Over Current Protection, Soft Start Fixed Operating temperature range (°C) -40 to 125 Iq (typ) (mA) 0.1 Regulated outputs (#) 1 Switching frequency (max) (kHz) 1200 Duty cycle (max) (%) 95 Topology Synchronous Buck Type Module Rating Catalog Control mode D-CAP3
QFN-FCMOD (RDX) 7 13.2 mm² 4 x 3.3
  • Configured for a wide range of applications
    • 3V to 17V input voltage range
    • 0.6V to 10V output voltage range for TPSM863252
    • 0.6V to 5.5V output voltage range for TPSM863257
    • Fixed 3.3V output voltage for TPSM863253
    • 0.6V reference voltage
    • ±1% reference accuracy at 25°C
    • ±1.5% reference accuracy at –40°C to 125°C
    • Integrated 55mΩ and 24mΩ MOSFETs
    • 100µA low quiescent current
    • 1.2MHz switching frequency
    • Maximum 95% large duty cycle operation
    • Precision EN threshold voltage
    • 1.6ms fixed typical soft-start time
  • Ease of use and small design size
    • TPSM863252 Eco-mode, TPSM863257 and TPSM863253 FCCM mode at light loading
    • Fast transient D-CAP3™ control mode
    • Easy layout with integrated bootstrap capacitor and inductor
    • Support start-up with prebiased output voltage
    • Non-latch for OV, OT, and UVLO protection
    • Cycle-by-cycle OC and NOC protection
    • –40°C to 125°C operating junction temperature
    • 3.3mm × 4mm × 2mm QFN package
  • Create a custom design using the TPSM863252 with the WEBENCH Power Designer
  • Create a custom design using the TPSM863253 with the WEBENCH® Power Designer
  • Create a custom design using the TPSM863257 with the WEBENCH® Power Designer
  • Configured for a wide range of applications
    • 3V to 17V input voltage range
    • 0.6V to 10V output voltage range for TPSM863252
    • 0.6V to 5.5V output voltage range for TPSM863257
    • Fixed 3.3V output voltage for TPSM863253
    • 0.6V reference voltage
    • ±1% reference accuracy at 25°C
    • ±1.5% reference accuracy at –40°C to 125°C
    • Integrated 55mΩ and 24mΩ MOSFETs
    • 100µA low quiescent current
    • 1.2MHz switching frequency
    • Maximum 95% large duty cycle operation
    • Precision EN threshold voltage
    • 1.6ms fixed typical soft-start time
  • Ease of use and small design size
    • TPSM863252 Eco-mode, TPSM863257 and TPSM863253 FCCM mode at light loading
    • Fast transient D-CAP3™ control mode
    • Easy layout with integrated bootstrap capacitor and inductor
    • Support start-up with prebiased output voltage
    • Non-latch for OV, OT, and UVLO protection
    • Cycle-by-cycle OC and NOC protection
    • –40°C to 125°C operating junction temperature
    • 3.3mm × 4mm × 2mm QFN package
  • Create a custom design using the TPSM863252 with the WEBENCH Power Designer
  • Create a custom design using the TPSM863253 with the WEBENCH® Power Designer
  • Create a custom design using the TPSM863257 with the WEBENCH® Power Designer

The TPSM86325x is a simple, easy-to-use, high-efficiency, high-power density, synchronous buck module with input voltage ranging from 3V to 17V and supports up to 3A continuous current.

The TPSM86325x employs D-CAP3 control mode to provide a fast transient response and to support low-ESR output capacitors with no requirement for external compensation. The device can support up to 95% duty cycle operation.

The TPSM863252 operates in Eco-mode, which maintains high efficiency during light loading. The TPSM863257 operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. TPSM863253 is a fixed 3.3V output voltage part with FCCM mode. TPS863253 integrated divider resistors and a feedforward cap in internal module. The device integrates complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup.

The device is available in a QFN package. The junction temperature is specified from –40°C to 125°C.

The TPSM86325x is a simple, easy-to-use, high-efficiency, high-power density, synchronous buck module with input voltage ranging from 3V to 17V and supports up to 3A continuous current.

The TPSM86325x employs D-CAP3 control mode to provide a fast transient response and to support low-ESR output capacitors with no requirement for external compensation. The device can support up to 95% duty cycle operation.

The TPSM863252 operates in Eco-mode, which maintains high efficiency during light loading. The TPSM863257 operates in FCCM mode, which keeps the same frequency and lower output ripple during all load conditions. TPSM863253 is a fixed 3.3V output voltage part with FCCM mode. TPS863253 integrated divider resistors and a feedforward cap in internal module. The device integrates complete protection through OVP, OCP, UVLO, OTP, and UVP with hiccup.

The device is available in a QFN package. The junction temperature is specified from –40°C to 125°C.

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Technical documentation

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* Data sheet TPSM86325x 3V to 17V Input, 3A, Synchronous Buck Module in QFN Package datasheet (Rev. C) PDF | HTML 10 Jan 2024
EVM User's guide TPSM863252, TPSM86325 and TPSM863257 Step-Down Converter Module EVM User's Guide (Rev. B) PDF | HTML 22 Sep 2023
Certificate TPSM863253EVM EU Declaration of Conformity (DoC) 07 Sep 2023

Design & development

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

Evaluation board

TPSM863253EVM — TPSM863253 3-A Eco-mode synchronous step-down buck evaluation module

TPSM863253 evaluation module (EVM) is a simple, easy-to-use, 3 A synchronous step-down buck module. This EVM is a fully assembled and tested circuit for evaluating the TPSM863253 step-down buck module. TPSM863253EVM operates from 3 V to 17 V input with a 12 V nominal and provides a fixed 3.3 V (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPSM863253 PSpice Transient Model

SLUM882.ZIP (214 KB) - PSpice 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 (...)
Package Pins Download
QFN-FCMOD (RDX) 7 View options

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