Overview: DATASHEET
ISL99227, ISL99227B
Smart Power Stage (SPS) Module with Integrated High Accuracy Current and Temperature Monitors The ISL99227 and ISL99227B are Smart Power Stage (SPS) patible with the ISL68xxx/69xxx Digital Multiphase (DMP) controllers and phase doubler (ISL6617A), respectively. The ISL99227 and ISL99227B have integrated high accuracy current and temperature monitors that can be fed back to the controller and doubler to plete a multiphase DC/DC system. They simplify design and increase performance by eliminating the DCR sensing network and associated thermal pensation. Light-load efficiency is supported through a dedicated LFET control pin. An industry leading thermally enhanced 5x5 PQFN package allows minimal overall PCB real estate.
The ISL99227 and ISL99227B feature a 3.3V patible, 5.0V patible tri-state PWM input that, working together with Renesas multiphase PWM controllers, provide a robust solution in the event of abnormal operating conditions. The ISL99227 and ISL99227B also improve system performance and reliability with integrated fault protection of UVLO, over-temperature, and overcurrent. An open-drain fault reporting pin simplifies the handshake between SPS and Renesas controllers and can be used to disable the controller during start-up and fault conditions.
