The STEVAL-ISA077V1 demonstration board is a high-efficiency synchronous rectifier step-up converter based on the L6920DB. It is designed for battery-powered applications and can operate with an input voltage of up to 5.5V. The board features an adjustable output voltage with a minimum of 1.8V, as well as fixed output voltages of 3.3V and 5V. It includes low battery voltage detection, reverse battery protection, and a 750mA input current limit. The switching frequency can reach up to 1MHz. The board is RoHS compliant and requires only three external components for the conversion from battery voltage to the selected output voltage.
The STEVAL-ISA077V1 is a demonstration board designed to showcase the capabilities of the L6920DB, a high efficiency monolithic step-up switching converter IC. It is specifically engineered for battery-powered applications, offering a minimum startup voltage of 0.8 V and a minimum operating voltage of 0.6 V. The board requires only three external components to convert battery voltage to a selected output voltage, making it ideal for powering advanced ASICs and microprocessors.
| Operating input voltage | Up to 5.5 V |
|---|---|
| Output voltage range | Adjustable from 1.8 V |
| Fixed output voltages | 3.3 V and 5 V |
| Input current limit | 750 mA |
| Switching frequency | Up to 1 MHz |
| Base IC | L6920DB |
The minimum startup voltage is 0.8 V.
It requires only three external components to realize the conversion.
Yes, the board features reverse battery protection.