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TPS61287

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23V VIN, 25V VOUT 20A synchronous boost converter with stackable multiphase function

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Data sheet

TPS61287

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Boost Vin (max) (V) 23 Vin (min) (V) 2.5 Vout (max) (V) 25 Vout (min) (V) 4.5 Features Adjustable current limit, Boost Sync, Cycle-by-cycle overcurrent protection, Enable, External Sync, Overvoltage protection, Programmable loop compensation, Thermal shutdown, UVLO Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00021 Duty cycle (max) (%) 96
Rating Catalog Topology Boost Vin (max) (V) 23 Vin (min) (V) 2.5 Vout (max) (V) 25 Vout (min) (V) 4.5 Features Adjustable current limit, Boost Sync, Cycle-by-cycle overcurrent protection, Enable, External Sync, Overvoltage protection, Programmable loop compensation, Thermal shutdown, UVLO Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00021 Duty cycle (max) (%) 96
VQFN-HR (RZP) 14 7.5 mm² 3 x 2.5
  • Wide input voltage and output voltage range
    • VIN : 2.0V to 23V
    • 2.5V Minimum input voltage for start-up
    • VOUT : 4.5V to 25V
  • High efficiency and power capability
    • Programmable switch current limit: 5A to 20A
    • Integrated 8.5mΩ high side MOSFET
    • Switching frequency: 320kHz
    • Up to 92.3% efficiency at VIN = 3.6V, VOUT = 18V, and IOUT = 2.0A
    • Up to 95.48% efficiency at VIN = 7.2V, VOUT = 18V, and IOUT = 4.0A
  • Support stackable multi-phase function
  • Selectable Auto PFM and Forced PWM mode
  • Synchronization capability to external clock
  • Rich protection
    • Output overvoltage protection at 27V
    • Precise EN/UVLO threshold
    • Cycle-by-cycle overcurrent protection
    • Thermal shutdown
  • External loop compensation
  • 2.5mm × 3.0mm VQFN HotRod™ Lite package
  • Wide input voltage and output voltage range
    • VIN : 2.0V to 23V
    • 2.5V Minimum input voltage for start-up
    • VOUT : 4.5V to 25V
  • High efficiency and power capability
    • Programmable switch current limit: 5A to 20A
    • Integrated 8.5mΩ high side MOSFET
    • Switching frequency: 320kHz
    • Up to 92.3% efficiency at VIN = 3.6V, VOUT = 18V, and IOUT = 2.0A
    • Up to 95.48% efficiency at VIN = 7.2V, VOUT = 18V, and IOUT = 4.0A
  • Support stackable multi-phase function
  • Selectable Auto PFM and Forced PWM mode
  • Synchronization capability to external clock
  • Rich protection
    • Output overvoltage protection at 27V
    • Precise EN/UVLO threshold
    • Cycle-by-cycle overcurrent protection
    • Thermal shutdown
  • External loop compensation
  • 2.5mm × 3.0mm VQFN HotRod™ Lite package

The TPS61287 is a high-power density, synchronous boost converter that integrates high side synchronous rectifier MOSFET and uses an external low side MOSFET to provide a high efficiency and small size solution. The TPS61287 has wide input voltage range from 2.0V to 23V and the output voltage covers up to 25V with 20A switching valley current capablity.

The TPS61287 uses adaptive constant on-time valley current control topology to regulate the output voltage. Under moderate to heavy load condition, the TPS61287 operates in pulse width modulation (PWM) mode. There are two optional modes in light load by configuring the MODE pin: Auto PFM mode to improve light-load efficiency and Forced PWM to avoid audible noise and other problems caused by low switching frequency.

The TPS61287 supports stackable multi-phase operation. Up to 4pcs TPS61287 can be configured for multi-phase operation at same switching frequency to support higher power and input current balancing.

The TPS61287 offers a very small solution size with 2.5mm x 3.0mm VQFN HotRod™ Lite package with minimal external components.

The TPS61287 is a high-power density, synchronous boost converter that integrates high side synchronous rectifier MOSFET and uses an external low side MOSFET to provide a high efficiency and small size solution. The TPS61287 has wide input voltage range from 2.0V to 23V and the output voltage covers up to 25V with 20A switching valley current capablity.

The TPS61287 uses adaptive constant on-time valley current control topology to regulate the output voltage. Under moderate to heavy load condition, the TPS61287 operates in pulse width modulation (PWM) mode. There are two optional modes in light load by configuring the MODE pin: Auto PFM mode to improve light-load efficiency and Forced PWM to avoid audible noise and other problems caused by low switching frequency.

The TPS61287 supports stackable multi-phase operation. Up to 4pcs TPS61287 can be configured for multi-phase operation at same switching frequency to support higher power and input current balancing.

The TPS61287 offers a very small solution size with 2.5mm x 3.0mm VQFN HotRod™ Lite package with minimal external components.
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* Data sheet TPS61287 23VIN , 25VOUT , 20A Synchronous Boost Converter with Stackable Multi-Phase Function datasheet (Rev. A) PDF | HTML 01 Nov 2024
Application note TPS61287 3.3V to 4.2V Input, 18V Output, 108W Peak Power Boost Converter Using Paralleled TPS61287 PDF | HTML 10 Feb 2026
Application note Selecting the Optimized Power MOSFET for Boost Device TPS61287 (Rev. A) PDF | HTML 03 Feb 2026

Design & development

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Evaluation board

TPS61287EVM — TPS61287 evaluation module

The TPS61287 evaluation module (EVM) helps to evaluate the behavior and performance of the TPS61287 at different input voltages, output voltages and load conditions. This EVM is designed for 3.3V to 4.2V input voltage and 18V output voltage applications.
User guide: PDF | HTML
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Simulation model

TPS61287 Encrypted Model

SLVME77.ZIP (112 KB) - PSpice Model
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Calculation tool

TPS61287-CALC — Calculation tool for TPS61287

This calculation tool is for converter TPS61287
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  • TPS61287 — 23V VIN, 25V VOUT 20A synchronous boost converter with stackable multiphase function
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VQFN-HR (RZP) 14 Ultra Librarian
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