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TPS54627

ACTIVE

4.5-V to 18-V, 6-A synchronous buck converter in HTSSOP package

A newer version of this product is available

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TPS566238 ACTIVE 3-V to 18-V input, 6-A synchronous step-down regulator with forced continuous conduction mode Higher efficiency converter in a smaller package.

Product details

Vin (min) (V) 4.5 Vin (max) (V) 18 Vout (min) (V) 0.76 Vout (max) (V) 5.5 Iout (max) (A) 6 Iq (typ) (mA) 0.95 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 650 Features Enable, Soft Start Adjustable, Synchronous Rectification Operating temperature range (°C) -40 to 85 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP2 Duty cycle (max) (%) 65 Type Converter
Vin (min) (V) 4.5 Vin (max) (V) 18 Vout (min) (V) 0.76 Vout (max) (V) 5.5 Iout (max) (A) 6 Iq (typ) (mA) 0.95 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 650 Features Enable, Soft Start Adjustable, Synchronous Rectification Operating temperature range (°C) -40 to 85 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP2 Duty cycle (max) (%) 65 Type Converter
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low-Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input-Voltage Range: 4.5 V to 18 V
  • Output-Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FETs Optimized for Lower Duty-Cycle Applications
    • 36 mΩ (High-Side) and 28 mΩ (Low-Side)
  • High Efficiency, Less Than 10 µA at Shutdown
  • High Initial Bandgap-Reference Accuracy
  • Adjustable Soft Start
  • Prebiased Soft Start
  • 650-kHz Switching Frequency
  • Cycle-by-Cycle Overcurrent Limit
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low-Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input-Voltage Range: 4.5 V to 18 V
  • Output-Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FETs Optimized for Lower Duty-Cycle Applications
    • 36 mΩ (High-Side) and 28 mΩ (Low-Side)
  • High Efficiency, Less Than 10 µA at Shutdown
  • High Initial Bandgap-Reference Accuracy
  • Adjustable Soft Start
  • Prebiased Soft Start
  • 650-kHz Switching Frequency
  • Cycle-by-Cycle Overcurrent Limit

The TPS54627 device is an adaptive on-time D-CAP2 mode synchronous-buck converter. The TPS54627 enables system designers to complete the suite of various end-equipment power-bus regulators with a cost-effective, low-component count, low-standby current solution.

The main control loop for the TPS54627 uses the D-CAP2 mode control that provides a fast transient response with no external compensation components. The TPS54627 also has a proprietary circuit that enables the device to adopt to both low equivalent-series-resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.

The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft-start time. The TPS54627 is available in the 8-pin SO PowerPAD package, and designed to operate from –40°C to 85°C.

The TPS54627 device is an adaptive on-time D-CAP2 mode synchronous-buck converter. The TPS54627 enables system designers to complete the suite of various end-equipment power-bus regulators with a cost-effective, low-component count, low-standby current solution.

The main control loop for the TPS54627 uses the D-CAP2 mode control that provides a fast transient response with no external compensation components. The TPS54627 also has a proprietary circuit that enables the device to adopt to both low equivalent-series-resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.

The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft-start time. The TPS54627 is available in the 8-pin SO PowerPAD package, and designed to operate from –40°C to 85°C.

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Technical documentation

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* Data sheet TPS54627 4.5-V to 18-V Input, 6-A Synchronous Step-Down Converter datasheet (Rev. B) PDF | HTML 23 Dec 2016
EVM User's guide TPS54627 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 23 Aug 2021
Application note Optimize Output Filter on D-CAP2 for Stability Improvement 13 Jun 2017

Design & development

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

Evaluation board

TPS54627EVM-052 — TPS54627 6-A Synchronous Step-Down Converter Evaluation Module

The Texas Instruments TPS54627EVM-052 evaluation module is a fully assembled and tested circuit for evaluating the TPS54627 4.5-V to 18-V input, 1.05-V output, 6-A synchronous converter.
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS54627 TINA-TI Transient Reference Design

SLVMA01.TSC (180 KB) - TINA-TI Reference Design
Simulation model

TPS54627 TINA-TI Transient Spice Model

SLVMA02.ZIP (48 KB) - TINA-TI Spice Model
Simulation model

TPS54627 Unencrypted PSpice Transient Model Package (Rev. B)

SLVM851B.ZIP (75 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 (...)
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HSOIC (DDA) 8 View options

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