Description
The STEVAL-ISA093V1 is a step-down switching power supply based on STMicroelectronics’ L7981 switching regulator in a QFN package. The L7981 features an embedded power MOSFET and is capable of delivering up to 3 A of current to the load, depending on the application conditions. The input voltage can range from 4.5 V to 28 V, while the output voltage can be set from 0.6 V to VIN. Requiring a minimum number of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz. STEVAL-ISA093V1

Features
■ 3 A DC output current
■ 4.5 V to 28 V input voltage
■ Output voltage adjustable from 0.6 V
■ 250 kHz switching frequency, programmable up to 1 MHz
■ Internal soft-start and enable
■ Low dropout operation: 100% duty cycle
■ Voltage feed-forward
■ Zero load current operation
■ Overcurrent and thermal protection
■ RoHS compliant