LA5757TP Datasheet (ON Semiconductor) - Separately-excited Step-down Switching Regulator

LA5757TP, Separately-excited Step-down Switching Regulator

of Functional Settings 1.

Calculation equation to set the output voltage This IC controls the switching output so that the VOS pin voltage becomes 1.255V (typ).

The equation to set the output voltage is as follows: VO = 1+ R2 R1 × 1.255V(typ) The VOS pin has the inrush current of 1μA (typ).

The

LA5757TP Features

* Output smoothing condenser can use a Low ESR condenser for the reliability improvement

* High efficiency

* Four external parts

* Time-base generator (300kHz) incorporated

* Current limiter incorporated

* Thermal shutdown circuit incorporated