ISL91302BIKZ-T

The ISL91302BIK is a highly efficient, dual or single output, synchronous multiphase buck switching regulator that can deliver up to 5A per phase maximum output current. The ISL91302BIK features four integrated power stages and two controllers. The ISL91302BIK can assign its power stages and controllers to two dual-phase outputs (2+2) or one three-phase and one-phase output (3+1) or one-phase output (4+0). This flexibility allows seamless design-in for a wide range of applications in which dual, triple, or quad-phase outputs are needed, such as CPU and GPU core power mobile applications.

ISL91302BIK integrates low ON-resistance MOSFETs at 2MHz switching frequency, allowing very small external inductors and capacitors to be used. With automatic Diode Emulation and Pulse Skipping modes under light-load conditions, this feature improves efficiency and maximizes battery life. The ISL91302BIK delivers a highly robust power solution through a controller based on the Renesas proprietary Rapid Robust Ripple Regulator (R5) technology, offering tight output accuracy and load regulation, ultra-fast transient response, seamless DCM/CCM transitions, and no required external compensation.

In addition to the standard interrupt, chip enable, and watchdog reset functions, the ISL91302BIK also features four MPIOs and two GPIOs that support SPI, I2C communication protocol, external signal telemetry with an internal ADC, Dynamic Voltage Scaling (DVS) with selectable slew rates, and various other pin mode functions.