IR3847MTRPBF

The IR3847MTRPBF from Infineon Technologies is a versatile and highly efficient DC/DC synchronous buck regulator. Designed for applications requiring accurate power delivery at low output voltages and high currents, this device integrates PWM controllers and MOSFETs into a compact 5mm x 6mm PQFN package.

Key electrical specifications include a wide input voltage range from 1.5V to 21V, with an adjustable output voltage range from 0.6V to 0.86*PVin. It can deliver a continuous output current of up to 25A. The switching frequency is programmable from 300kHz to 1.5MHz, allowing for optimization of performance and component size. The regulator features a 0.5% accurate reference voltage and enhanced line/load regulation with feed-forward control.

Protection features include thermally compensated current limit with Hiccup Mode, Over Voltage Protection (OVP), and thermal shutdown, ensuring system-level security. The IR3847MTRPBF also offers an internal digital soft-start, pre-bias startup capability, and remote sense amplifier for true differential voltage sensing. Its small PQFN package and integrated components make it suitable for space-constrained designs.

This regulator is ideal for applications such as Netcom, embedded telecom systems, server power architectures, and distributed point-of-load power supplies. It operates within a junction temperature range of -40°C to 125°C and is RoHS compliant.