Evaluation Board based on the ST1S50 - 4A Step-down Switching
Manufactured By:ST Microelectronics
Part Number:STEVAL-ISA146V1
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.
The ST1S50 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.
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
Ships With
- Evaluation Board