ISL99227IRZ-T

ISL99227IRZ-T is an ISL99227 smart power stage (SPS) module. This has integrated high accuracy current and temperature monitors that can be fed back to the controller and doubler to complete a multiphase DC/DC system. This simplifies design and increase performance by eliminating the DCR sensing network and associated thermal compensation. Light-load efficiency is supported through a dedicated LFET control pin. It features a 3.3V compatible, 5.0V compatible tri-state PWM input that, working together with Intersil’s multiphase PWM controllers, provides a robust solution in the event of abnormal operating conditions. It also improves system performance and reliability with integrated fault protection of UVLO, over-temperature, and overcurrent. Application includes high frequency and high efficiency VRM and VRD, core, graphic, and memory regulators for microprocessors, high density VR for server, networking, and cloud computing, and POL DC/DC converters and video gaming consoles.

• 60A current rating, 3.3V PWM input
• Input range from +4.5V to +18V
• ISL99227 with 3.3V compatible tri-state PWM input
• Downslope current sensing, ±3% accuracy current monitor (IMON) with REFIN input
• 8mV/°C temperature monitor with OT flag, dedicated low-side FET control input
• Comprehensive fault protection for high system reliability
• High-side FET short and overcurrent protection, over-temperature protection
• VCC and VIN undervoltage lockout (UVLO)
• Open-drain fault reporting output, up to 2MHz switching frequency
• 32 Ld PQFN package, temperature range from -40 to +85°C