This data brief describes the STEVAL-ISA068V1, a 4 A/1.5 MHz step-down synchronous switching regulator based on the ST1S32 in DFN 4x4 package. It features 4 A DC output current, 2.8 V to 5.5 V input voltage, output voltage adjustable from 0.8 V, 1.5 MHz switching frequency, internal soft-start and enable, integrated 60 mΩ and 45 mΩ power MOSFETs, all ceramic capacitor, Power Good (POR), cycle-by-cycle current limiting, current foldback short-circuit protection and RoHS compliance.
The STEVAL-ISA068V1 is a demonstration board designed for evaluation purposes only. It is based on the ST1S32, an internally compensated 1.5 MHz fixed-frequency PWM synchronous step-down regulator. The device operates with an input voltage range of 2.8 V to 5.5 V and can regulate an output voltage as low as 0.8 V up to the input voltage.
| Output current | 4 A |
|---|---|
| Switching frequency | 1.5 MHz |
| Input voltage range | 2.8 V to 5.5 V |
| Output voltage range | 0.8 V to Vin |
| Package | DFN 4x4 |
The device operates from 2.8 V to 5.5 V input.
It regulates an output voltage up to Vin.
The switching frequency is 1.5 MHz.