SC1650 Datasheet (Semtech Corporation) - HIGH-VOLTAGE INVERTING DC-DC CONVERTER

SC1650, HIGH-VOLTAGE INVERTING DC-DC CONVERTER

The SC1650 is a high performance inverting DC-DC converter, designed to drive an external power switch to generate programmable negative voltages.

In the particularly suitable LCD bias contrast application, maximum efficiency of 90% can be achieved with low cost PNP bipolar transistor drivers.

The 4

SC1650 Features

* 4V to 24V input voltage operation

* Adjustable output voltage up to -40V

* Low quiescent current at 100µA

* Pulse frequency modulation maintains high

* efficiency (max 90%) 100kHz to 320kHz switching frequency Power-Saving shutdown mode (