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UC5301 - SWITCHED-CAPACITOR VOLTAGE INVERTERS

General Description

The UTC UC5301 is an unregulated charge-pump voltage inverter.

It can be used to generate a negative supply from positive input.

Input voltages varying from +1.8V to +5V can be inverted into a -1.8V ~ -5V output supply.

Key Features

  • S.
  • Operating voltage range: 1.8V ~ 5V.
  • Inverts input supply voltage.
  • 25mA output current with a voltage drop of 250mV.
  • Quiescent current 0.45mA from supplis 3.3V.
  • Voltage conversion efficiency up to 99%.
  • Only two capacitors needed.
  • Over-temperature circuit.
  • 2KV ESD rating.

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Full PDF Text Transcription (Reference)

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UNISONIC TECHNOLOGIES CO., LTD UC5301 SWITCHED-CAPACITOR VOLTAGE INVERTERS  DESCRIPTION The UTC UC5301 is an unregulated charge-pump voltage inverter. It can be used to generate a negative supply from positive input. Input voltages varying from +1.8V to +5V can be inverted into a -1.8V ~ -5V output supply. The device can be operated on a 0.45mA typical current from supplies 3.3V, which meets the requirements of battery-powered and board level voltage conversion applications. The UTC UC5301 can deliver 25mA output current with a voltage drop of 250mV. The parts are over-temperature protected. The UTC UC5301 is generally used in cell phones, PDAS, and other portable equipments, small LCD panels, handy-terminals.  FEATURES * Operating voltage range: 1.