LA5779 Datasheet (ON Semiconductor) - Separately-excited Step-down Switching Regulator

LA5779, Separately-excited Step-down Switching Regulator

of Functional Settings Calculation equation to set the output voltage This IC controls the switching output so that the VOS pin voltage becomes 1.23V (typ).

The equation to set the output voltage is as follows: VO = 1+ R2 R1 × 1.23V(typ) The VOS pin has the inrush current of 1μA (typ).

Therefo

Ordering number : ENA0476A LA5779 Monolithic Linear IC Separately-excited Step-down Switching Regulator (Variable Type) http://onsemi.com Overview The LA5779 is a Separately-excited step-down switching regulator (variable type).

Functions High efficiency.

Six external parts.

Time-base generator (160kHz) incorporated.

Current limiter incorporated.

Thermal shutdown circuit incorporated.

ON/OFF function.

Specifications Absolute Maximu