LV5781 Datasheet (ON Semiconductor)

LV5781, Step-down Converter

GND of output voltage setting pins FB0 and FB2.

It is connected to GND for use when pin FB2 is used.

Output ON/OFF with an active-high polarity.

When set to L, the current consumption is reduced to 10μA or less.

Soft start time constant setting.

The charge current is set to approx.

6.5μA and when a

Ordering number : ENA0663A LV5781 Bi-CMOS IC 3A, Point-of-load, Chopper-type Step-down Converter http://onsemi.com Overview The LV5781 is a 1-channel chopper-type (low-side Schottky diode) step-down switching regulator.

It incorporates an 80mΩ (typical) power MOSFET to achieve high-efficiency operation for 3A output currents.

The output voltage is set internally to 3.3V.

By adding two external resistors, it is possible to set the voltage to any desired setting above 0.85V.

Inrush current at s