ISL91212A

The ISL91212A is a four-phase, three-output programmable power management IC (PMIC). It is optimized with highly efficient synchronous buck converters capable of multiphase and single-phase operation, delivering up to 5A per phase of continuous output current. The device features four buck controllers and can reconfigure its power stages to these controllers. This flexibility allows seamless design-in for a wide range of applications that require high output power and small solution size. The ISL91212A integrates low ON-resistance MOSFETs and programmable PWM frequency, allowing the use of very small external inductors and capacitors. It features automatic diode emulation and pulse skipping modes under light-load conditions to further improve efficiency and maximize battery life. The ISL91212A delivers a highly robust power solution by featuring a controller based on the proprietary Renesas R5 (Rapid Robust Ripple Regulator) Technology, which provides tight output accuracy and load regulation, ultra-fast transient response, seamless DCM/CCM transitions, and requires no external compensation. In addition to standard interrupt and chip enable functions, the ISL91212A features three MPIOs and two GPIOs capable of supporting the I²C communication protocol and various other pin mode functions.