Renesas Electronics Corporation DC DC Switching Controllers ISL6269BCRZ

The ISL6269BCRZ is a high-performance single-phase synchronous-buck PWM controller designed for efficient power management in applications such as PCI Express graphical processing units and auxiliary power rails. It operates within a wide input voltage range of +5V to +25V and supports output voltages from +0.6V to +3.3V, with a maximum output load of 25A. This controller features Intersil's R3,Ñ¢ Technology, which enhances transient response and allows for ¬±1% regulation accuracy across a temperature range of -10¬8C to +100¬8C. The programmable PWM frequency ranges from 200kHz to 600kHz, and it includes selectable diode emulation mode to improve efficiency at light loads. The ISL6269BCRZ also supports pre-biased output startup and incorporates integrated MOSFET drivers and a bootstrap diode, reducing the number of external components required. Safety features include undervoltage protection, soft crowbar overvoltage protection, over-temperature protection, and fault identification through a power-good monitor. The device is packaged in a 16-lead QFN (4x4) format and is RoHS compliant, making it suitable for environmentally conscious designs.