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ANALOG DEVICES LTC1550LCMS8#PBF

DC/DC Charge Pump Voltage Converter, Adjustable, 2.7 to 5.5V in, 0.02A out, MSOP-8

ANALOG DEVICES LTC1550LCMS8#PBF
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Manufacturer Part No:
LTC1550LCMS8#PBF
Order Code:
4033596
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Technical Datasheet:
LTC1550LCMS8#PBF   Datasheet
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Product Overview

LTC1550L is a low noise, switched capacitor regulated voltage inverter. The switched capacitor charge pump voltage inverter which includes internal linear post regulators to minimize output ripple. This device fixed output voltage versions include -4.1V, -2.5V and -2V with ripple voltages typically below 1mVP-P. It is also available in an adjustable output voltage version. It is ideal for use as bias voltage generators for GaAs transmitter FETs in portable RF and cellular telephone applications. It is widely used in application such as GaAs FET bias generators, negative supply generators, battery-powered systems, single supply applications etc.
  • Regulated negative voltage from a single positive supply
  • Small charge pump capacitor is 0.1µF, requires only four external capacitors
  • Shutdown mode drops supply current to 1µA
  • High output current upto 20mA (depending on VCC to VOUT range)
  • Output regulation over line, load and temperature is 2.5%
  • Supply current is 3.65mA typ at (TA = 25°C, VCC = 2.7V to 5.25V)
  • Internal oscillator frequency is 900KHz typ at ( TA = 25°C, VCC = 2.7V to 5.25V)
  • Output ripple voltage is 1mV typ at (TA = 25°C, VCC = 2.7V to 5.25V)
  • Operating temperature is 0°C to 70°C
  • Package style is 8-lead plastic MSOP

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Technical Documents (1)

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