STEVAL-ISA091V1 is a step-down switching power supply based on the L7980 switching regulator. It features a 2A DC output current, a 4.5V to 28V input voltage range, an adjustable output voltage from 0.6V, a programmable switching frequency up to 1MHz, internal soft-start and enable functions, low dropout operation with 100% duty cycle, and overcurrent and thermal protection.
The document is a data brief for the STEVAL-ISA091V1, which is a step-down switching power supply demonstration board. It is built around STMicroelectronics' L7980 switching regulator in a QFN package and is designed to deliver up to 2 A of DC output current.
| Output current | 2 A |
|---|---|
| Input voltage range | 4.5 V to 28 V |
| Output voltage range | 0.6 V to VIN |
| Switching frequency | 250 kHz, programmable up to 1 MHz |
The device is capable of delivering up to 2 A of current to the load.
The input voltage can range from 4.5 V to 28 V.
The internal oscillator operates at 250 kHz but can be externally adjusted up to 1 MHz.