Product details


Topology Half-Bridge Control method Current Duty cycle (Max) (%) 50 UVLO thresholds on/off (V) 2.8/2.6 Operating temperature range (C) -10 to 105 Features Light Load Efficiency Rating Catalog open-in-new Find other PWM controllers & resonant controllers

Package | Pins | Size

VQFN (RSM) 32 16 mm² 4 x 4 open-in-new Find other PWM controllers & resonant controllers


  • Valley Current Mode with Constant ON Time Control
  • Lossless Current Sensing Scheme
  • I2C Interface for VID Control and Telemetry
  • Programmable I2C Addresses up to Eight Devices
  • Switching Frequency up to 1 MHz
  • Digital Current Monitor
  • 7-Bit, DAC Output Range: 0.50-V to 1.52-V with 10-mV Step
  • Accurate, Adjustable Voltage Positioning or Zero Slope Load-Line
  • Selectable, 8-Level Current Limit
  • Adjustable Output Slew Rate Control
  • Default Boot Voltage: 1.00 V
  • Small, 4-mm × 4-mm, 32-Pin, VQFN, PowerPAD Package
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The TPS53632G device is a half-bridge PWM controller with D-CAP+ architecture that provides fast transient response, lowest outputcapacitance and high efficiency in single stage conversion directly from 48-V bus. The TPS53632G device supports the standard I2C Rev 3.0 interface for dynamic controlof the output voltage and current monitor telemetry. Paired with TI GaN power stages and drivers,the TPS53632G can switch up to 1 MHz to minimize magnetic component size and reduce overall boardspace. The LMG5200 GaN power stage is designed specifically for this controller to achieve highfrequency and efficiency as high as 92% with 48-V to 1-V conversion.

Other features include adjustable control of output slew rate and voltage positioning. Inaddition, the TPS53632G device can be used along with other TI discrete power MOSFETs and driversfor silicon-based half bridge solutions. The TPS53632G device is packaged in a space saving,thermally enhanced, 32-pin VQFN package and is rated to operate at a range between –10°C and105°C.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS53632G D-CAP+™ Half-Bridge PWM Controller Optimized for GaN-based 48-V DC/DC Converter with I2C Interface datasheet (Rev. A) Jun. 10, 2016
User guides Using the LMG5200POLEVM-10A GaN 48V-1V Point-of-Load EVM (Rev. B) Aug. 02, 2017
Technical articles Enabling 48V-to-POL single-stage conversion with GaN Jul. 05, 2016
Technical articles Highlights from APEC 2016 – GaN, 48V POL, wireless charging and more! Mar. 28, 2016

Design & development

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Hardware development

document-generic User guide

The LMG5200POLEVM-10 EVM is designed to evaluate the LMG5200 GaN power stage and the TPS53632G half-bridge point-of-load controller in a 48V to 1V application.  This EVM implements the 48V-1V converter as a single-stage hard-switched half-bridge with current-doubler rectifier.  The EVM (...)

  • Input voltage from 36V to 75V
  • Output from 0.5 Volts to 1.5 Volts at up to 50 A
  • Switching frequency up to 1 MHz
  • DCAP+ control architecture provides fast transient response

Design tools & simulation


Reference designs

Half-bridge point-of-load converter reference design with GaN technology
PMP22089 — This reference design modifies the inboard transformer turns ratio from 5:1 to 3:1 to reduce input the range. The board supports input voltages from 24 V to 32 V and output voltages between 0.5 V to 1.0 V with output currents up to 40 A. This topology efficiently supports the high step-down ratio (...)
document-generic Schematic document-generic User guide
LMG5200 48V to 1V/40A Single Stage Converter Reference Design
PMP4497 — The PMP4497 is a GaN-based reference design solution for the Vcore such as FPGA, ASIC applications. With high integration and low switching loss, the GaN module LMG5200 enables a high efficiency single stage from 48V to 1.0V solution to replace the traditional 2-stage solution. This design shows the (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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