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TPSM863252

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3-V to 17-V input voltage, 3-A Eco-mode synchronous buck module

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Data sheet

TPSM863252

ACTIVE
Data sheet Order now

Product details

Iout (max) (A) 3 Vin (max) (V) 17
Iout (max) (A) 3 Vin (max) (V) 17
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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Type Title Date
* Data sheet TPSM86325x 3V to 17V Input, 3A, Synchronous Buck Module in QFN Package datasheet (Rev. C) PDF | HTML 10 Jan 2024
Application brief Solving power design challenges in oscilloscope applications PDF | HTML 31 Oct 2023
EVM User's guide TPSM863252, TPSM86325 and TPSM863257 Step-Down Converter Module EVM User's Guide (Rev. B) PDF | HTML 22 Sep 2023
Certificate TPSM863252 EU RoHS Declaration of Conformity (DoC) 02 Apr 2023

Design & development

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

Evaluation board

TPSM863252EVM — TPSM863252 evaluation module for 3-V to 17-V input voltage, 3-A Eco-mode synchronous buck module

TPSM863252 evaluation module (EVM) is a simple, easy-to-use, 3 A synchronous step-down buck module. TPSM863252EVM is a fully assembled and tested circuit for evaluating the TPSM863252 step-down buck module. The EVM operates from 3 V to 17 V input (12 V nominal) and provides a 1.05 V output at 3 A. (...)

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

TPSM863252 PSPICE Model

SLUM864.ZIP (486 KB) - PSpice Model
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Reference designs

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This reference design is a Gallium nitride (GaN) based, 3.6kW, single-phase continuous conduction mode (CCM) totem-pole bridgeless power factor correction (PFC) converter, targeting M-CRPS power supply. This design includes e-meter functionality with 0.5% accuracy, eliminating the need for (...)
Test report: PDF
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PMP40586 — 1-kW digital-controlled current mode LLC reference design

This reference design is an industry-first digital hybrid hysteretic control (HHC) solution, targeting server PSU applications with 12-V to 54-V output. This reference design shows the HHC control advantages by UCD3138, in a 400-V to 12-V 1-kW LLC power stage. This design achieves 8-kHz peak loop (...)
Test report: PDF
Reference designs

PMP41081 — 1-kW, 12-V HHC LLC reference design using C2000™ real-time microcontroller

This reference design is a 1-kW, 400-V to 12-V half-bridge resonant DC/DC platform used to evaluate the load transient performance of hybrid-hysteretic control (HHC) with an F280039C microcontroller. HHC is a method which combines direct frequency control (DFC) and charge control, and is charge (...)
Test report: PDF
Reference designs

PMP41017 — 3kW two-phase interleaved half-bridge LLC reference design with GaN and C2000™ MCU

This reference design is a 3-kW, two-phase, interleaved half-bridge inductor-inductor-capacitor (LLC) using the LMG3422 and F280039C devices. This design can achieve 98.1% peak efficiency and 313 W / in³ power density and can be used as the output stage of a common redundant power supply (...)
Test report: PDF
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