ICL7663

PRODUCTION

Programmable Positive Voltage Regulator

Generates Temperature-Compensated Display-Drive Voltage for LCD

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Overview

  • Improved 2nd Source! (See 3rd page for "Maxim AdvantageTM").
  • 1% Output Voltage Accuracy (ICL7663A)
  • Quiescent Current guaranteed over Temperature
  • Improved Temperature Coefficient of Output Voltage
  • 40mA Output Current, with Current Limiting
  • 1.5V to 16V Operating Range
  • Adjustable Output Voltage
  • Low Input-to-Output Voltage Drop
  • Monolithic, Low Power CMOS Design

The Maxim ICL7663 is a high efficiency positive voltage regulator with a quiescent current of less than 10μA. The output voltage is set by two external resistors to any voltage in the 1.3-16V range, with an input voltage range of 1.5-16V. The ICL7663 is well suited for battery powered supplies, featuring low quiescent current, 40mA output current capability, low VIN to VOUT differential, and a logic input level shutdown control. In addition, the ICL7663 has a negative temperature coefficient output suitable for generating a temperature compensated display drive voltage for multiplexed LCD display systems.

The Maxim ICL7663A is an enhanced version of the ICL7663, with a 1% accurate voltage reference, which eliminates the need for trimming the output voltage in most applications.

The ICL7663B is a reduced input voltage range version limited to a maximum of 10V input.

APPLICATIONS

  • Handheld Instruments
  • LCD Display Module and Systems
  • Pagers
  • Remote Data Loggers

ICL7663
Programmable Positive Voltage Regulator
ICL7663, ICL7663A: Typical Operating Circuit
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