TPS53632G

• 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

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.