The ST1S50PUR device is a 500 kHz fixed frequency PWM synchronous step-down regulator. The ST1S50PUR operates from 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.
The ST1S50PUR device integrates a 95 mΩ high-side switch and a 69 mΩ synchronous rectifier allowing very high efficiency with very low output voltages.
The peak current mode control with a special PFM mode enables high efficiency at a light load.
The ST1S50PUR device is available in a VFDFPN10 3 x 3 x 1 mm - 10 leads package.
Feature
- 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
