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SC1650 Datasheet High-voltage Inverting DC-dc Converter

Manufacturer: SEMTECH

Overview: HIGH-VOLTAGE INVERTING DC-DC CONVERTER January 29, 1998 SC1650 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.

General Description

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 4V to 24V input operation range allows the SC1650 to be powered directly by the battery pack in most batteryoperated applications for greater efficiency.

Key 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 (8µA typical) High efficiency with low cost external PNP bipolar transistor.

SC1650 Distributor