TDA387400000AUMA1

TDA38740 is an easy-to-use, fully integrated and highly efficient OptiMOS™ IPOL single-voltage synchronous buck regulator 40A with PMBus interface. The device uses Infineon’s FAST Constant On-time engine for superior transient response. It is easily configured using Infineon’s XDP™ Designer GUI and the configuration can be stored in the on-chip memory. It also features important protection functions, such as pre-bias start-up, thermally compensated current limit, over voltage and under voltage protection, and thermal shutdown to give required system level security in the event of fault conditions. Potential applications are telecom and datacom, base stations, FPGA power, storage, server, distributed point of load power architectures.

• Wide input voltage range from 3V to 17V with external Vcc
• Output voltage range from 0.25V to 5V based on output feedback divider network
• Enhanced stability engine stable with ceramic capacitors and no external compensation
• Programmable switching frequency from 400kHz - 2MHz in steps of 200kHz
• Monotonic start-up with selectable soft-start time and enhanced pre-bias start-up
• Thermally compensated internal over-current protection with eight selectable settings
• Easy to use fast constant on-time PWM engine, high efficiency and high power density
• Accurate output voltage regulation, superior transient response
• PMBus system interface for reporting of temperature, voltage, current and power telemetry
• Operating temperature is -40°C <lt/> Tj <lt/> 125°C, small size: 5mm x 6mm PQFN package