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LTC1550LCGN
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LTC1550LCGN

  • Category:Voltage regulator
  • Product Name:Low noise, switched capacitor regulated inverter
  • Manufacturers:LINEAR
  • Production Batch Number:10+
  • Encapsulation:SSOP16
  • Stock Status:There is stock
  • Stock Quantity:9000
  • Minimum order quantity: 1
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  • Product introduction

LTC1550LCGN

Low noise, switched capacitor regulated inverter

peculiarity

  • Regulate negative voltage from a single positive supply
  • Low output ripple: less than 1mVP - Ptypical
  • High charge pump frequency: 900kHz typical
  • Small charge pump capacitance: 0.1μF
  • Only 4 external capacitors are required
  • Fixed 4.1V or adjustable output
  • Shutdown mode drops supply current
  • High output current up to 10mA, VCC= 5V
  • Output regulation: 5%
  • Available in SO-8 and 16-lead SSOP

Typical applications

Typical applications for the LTC1550
Typical applications for the LTC1550

description

LTC ® 1550/LTC1551 switched capacitor charge pump voltage inverters, including internal linear regulation, to minimize output ripple. The output voltage is fixed at 4.1V, and the ripple voltage is typically less than 1mVpolypropylene。 The LTC1550 is also available in an adjustable output voltage version. The LTC1550/LTC1551 are ideal for bias voltage generators for GaAs transmitting field transistors in portable RF and mobile phone applications. The LTC1550/LTC1551 operate from a single 4.5V to 6.5V supply and plot a typical quiescent current of 4.25 mA for a 5V supply. Each device includes a TTL-compatible shutdown pin that drops supply current to 0.2μA typically. The LTC1550 shutdown pin is active low (SHDN) while the LTC1551 shutdown pin is high (SHDN). Only four external components are required: an input bypass capacitor, two 0.1μF charge pump capacitors, and a filter capacitor for the linear regulator output. The adjustable LTC1550 requires two additional resistors to set the output voltage. The LTC1550/LTC1551 will deliver up to 10mA of output current from a 5V supply while maintaining a guaranteed output regulation ± 5%. The fixed voltage LTC1550/LTC1551 are available in S0 - 8 plastic packages. The adjustable LTC1550 is in a 16-pin SSOP.

apply

  • GaAs FET bias generator
  • Negative power generator
  • Battery-powered system
  • Single-supply applications

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