Used for Whatsminer M20/30 series control board (purchased according to the original silkscreen), STI3474 is a high-efficiency 0.8V, 3.0A synchronous rectification step-down converter. Operates with high efficiency over a wide output current load range. The device provides two operating modes, PWM control, and PFM mode switch control, to achieve high efficiency over a wider load range.

Same chip as S43Bo7A

Feature:

Efficiency up to 95%@5V

600kHz frequency operation

3.0A output current

No Schottky diode required

3.5V to 18V Input Voltage Range

0.8V reference voltage

Slope Compensated Current Mode Control for Good Line and Load Transient Response

Comprehensive Internal Compensation

Low ESR Ceramic Output Capacitor Stable

Overcurrent Protection with Hiccup Mode

Input Overvoltage Protection (OVP)

Thermal shutdown

Inrush Current Limiting and Soft-Start

Available in the SOT23-6 package