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描述

The LTP3456 family is a 500 mA LDO linear regulator with auto discharge function, It uses an advanced CMOS process and a P-MOSFET pass device to achieve high power supply rejection ratio (PSRR), low noise, low dropout, low ground current, fast start-up, and excellent output accuracy. The LTP3456 family is stable with a 1.0 µF ceramic output capacitor. The device uses a precision voltage reference and feedback loop to achieve excellent Regulation and transient response. The LTP3456 family is offered in a small SOT23-5L and DFN1×1-4L packages, which are ideal for small form factor portable equipment. The LTP3456 family is available in standard fixed output voltages of 0.8 V, 1.2 V, 1.5 V, 1.8 V , 2.5 V, 2.8 V, 3.0 V, and 3.3 V.

优势和特点

  • Wide Input Voltage Range from 1.9 V to 5.5 V
  • Up to 500 mA Load Current
  • Standard Fixed Output Voltage Options: 0.8 V, 1.2 V, 1.5 V, 1.8V, 2.5 V, 2.8 V, 3.0 V and 3.3 V
  • Very Low IQ of 45 µA Typically
  • Low Dropout of Typical 200 mV at 2.8 V Output and 300 mA Load
  • High PSRR: 70 dB at 1 kHz
  • Low Noise: 40 µVRMS at 1.2 V Output
  • Excellent Load/Line Transient Response
  • Packages:SOT23-5L, DFN1×1-4L

应用

  • Smart Phones and Tablets
  • IP Cameras
  • Portable instruments

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