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DC/DC Inductorless Charge Pump Fixed Voltage Regulator, 3V to 5.25V in, -0.232V/26 mA out, VSSOP-8

LM7705MM/NOPB - DC/DC Inductorless Charge Pump Fixed Voltage Regulator, 3V to 5.25V in, -0.232V/26 mA out, VSSOP-8

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Product Overview

The LM7705MM/NOPB is a switched capacitor charge-pump Voltage Inverter with a low noise, -0.23V fixed negative voltage regulator. This device is designed to be used with low voltage amplifiers to enable the amplifiers output to swing to zero volts. The -0.23V is used to supply the negative supply pin of an amplifier while maintaining less than 5.5V across the amplifier. Rail-to-rail output amplifiers cannot output 0V when operating from a single-supply voltage and can result in error accumulation due to amplifier output saturation voltage being amplified by following gain stages. A small negative supply voltage will prevent the amplifiers output from saturating at zero volts and will help maintain an accurate zero through a signal processing chain. Additionally, when an amplifier is used to drive an input of the ADC, the amplifier can output a zero voltage signal and the full input range of an ADC can be used. The LM7705 device has a shutdown pin to minimize standby power consumption.
  • 5% Output voltage tolerance
  • 4mVPP Output voltage ripple
  • 98% Conversion efficiency
  • 78µA Quiescent current
  • 500µs Turn-ON time
  • Green product and no Sb/Br


Power Management, Signal Processing, Portable Devices

Product Information

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Packaging type Re-reel

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Deliveries start from 15/11/20

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$1.36 ( $1.50  Inc. GST)

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