深圳市中立信电子科技有限公司

ISL99227FRZ-T

Smart Power Stage (SPS) Module with Integrated High Accuracy Current and  Temperature Monitors

电源管理 (PMIC) Smart Power Stage (SPS) Module with Integrated High-Accuracy

The ISL99227FRZ-T ISL99227 and ISL99227B are Smart Power Stage (SPS)  compatible with Intersil’s 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 complete a multiphase DC/DC  system. They simplify 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. An industry leading thermally  enhanced 5x5 PQFN package allows minimal overall PCB real  estate.

Features ISL99227FRZ-T

• Input range: +4.5V to +18V

• Supports 60A DC current

• ISL99227 with 3.3V compatible tri-state PWM input

• ISL99227B with 5.0V 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

• Pb-free (RoHS compliant), 32 Ld 5x5 PQFN

Applications ISL99227FRZ-T

• High frequency and high efficiency VRM and VRD

• Core, graphic, and memory regulators for microprocessors

• High density VR for server, networking, and cloud computing

• POL DC/DC converters and video gaming consoles