ISL99227HRZ-T Electronic Components

ISL99227HRZ-T Electronic Components belongs to Smart Power Stage (SPS) Module with Integrated High Accuracy Current and Temperature Monitors.The ISL99227 and ISL99227B feature a 3.3V compatible, 5.0V compatible tri-state PWM input that, working together with Intersil’s multiphase PWM controllers, provide a robust solution in the event of abnormal operating conditions.

The 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. 

Product  Applications

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   

Product Features  

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