STMicroelectronics STEVAL-A6983CV1 Evaluation Board

STMicroelectronics STEVAL-A6983CV1 Evaluation Board is designed for the A6983 synchronous monolithic step-down regulator, capable of supplying up to 3A DC to the load. The STEVAL-A6983CV1 wide input voltage range allows for a broad range of applications.

The STMicroelectronics STEVAL-A6983CV1 operates on a peak current mode architecture enclosed in a QFN16 (3mm x 3mm) package with internal compensation, minimizing design complexity and size. The STEVAL-A6983CV1 permits the switching frequency to be selected in the 200kHz to 2.3MHz range with an optional spread spectrum for improved EMC. The EN pin facilitates an enable/disable functionality. The typical shutdown current is 2μA when disabled. The device is enabled when the EN pin is pulled up, and the internal 1.3ms softstart occurs.

The STEVAL-A6983CV1 features a Power Good open collector that monitors the FB voltage. Pulse-by-pulse current sensing on both power elements implements sufficient constant current protection, and thermal shutdown prevents thermal run-away.

Features

AECQ100 Grade 1 qualified
Operating temperature range of -40°C to +150°C for T_j
3.5V to 38V operating input voltage
Output voltage from 0.85V to V_IN
3A DC output current
25μA operating quiescent current
Internal compensation network
High efficiency at light loads
2μA shutdown current
Internal soft-start

High voltage V_IN compatible enable
Output overvoltage protection
Output voltage sequencing
Thermal protection
200MHz to 2.2MHz programmable switching frequency, stable with low ESR capacitor min 22µF
Optional spread spectrum for improved EMC
Power good
QFN16 (3mm x 3mm) package