Description
The STEVAL-ISA146V1 is a product evaluation board used to evaluate the ST1S50, a 500 kHz fixed-frequency PWM synchronous step-down regulator. The ST1S50 operates from a 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to 0.88 x VIN. April 2014 DocID026180 Rev 1 1/4 For further information contact your local STMicroelectronics sales office

Features
■ 4 A output current
■ 4.0 V to 18 V input voltage
■ Output voltage adjustable from 0.8 V to 0.88 x VIN
■ 500 kHz switching frequency
■ High efficiency at light load
■ Programmable soft-start and enable
■ Integrated 95 mW and 69 mW power MOSFETs
■ All ceramic capacitor
■ Power Good
■ Cycle-by-cycle current limiting
■ Short-circuit protection
■ Hysteretical thermal shutdown
■ RoHS compliant