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MAX680 - +5V to 10V Voltage Converters

Description

The MAX680/MAX681 are monolithic, CMOS, dual chargepump voltage converters that provide ±10V outputs from a +5V input voltage.

The MAX680/MAX681 provide both a positive step-up charge pump to develop +10V from +5V input and an inverting charge pump to generate the -10V output.

Features

  • 95% Voltage-Conversion Efficiency.
  • 85% Power-Conversion Efficiency.
  • +2V to +6V Voltage Range.
  • Only Four External Capacitors Required (MAX680).
  • No Capacitors Required (MAX681).
  • 500µA Supply Current.
  • Monolithic CMOS Design Ordering Information PART MAX680CPA MAX680CSA MAX680C/D TEMP. RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C MAX680EPA -40°C to +85°C MAX680ESA MAX680MJA MAX681CPD MAX681EPD -40°C to +85°C -55°C to +125°.

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Full PDF Text Transcription

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Click here for production status of specific part numbers. MAX680/MAX681 +5V to ±10V Voltage Converters General Description The MAX680/MAX681 are monolithic, CMOS, dual chargepump voltage converters that provide ±10V outputs from a +5V input voltage. The MAX680/MAX681 provide both a positive step-up charge pump to develop +10V from +5V input and an inverting charge pump to generate the -10V output. Both parts have an on-chip, 8kHz oscillator. The MAX681 has the capacitors internal to the package, and the MAX680 requires four external capacitors to produce both positive and negative voltages from a single supply. The output source impedances are typically 150Ω, providing useful output currents up to 10mA.
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