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LTC3405A-1.8 Datasheet Synchronous Step-Down Regulators

Manufacturer: Linear Technology (now Analog Devices)

Download the LTC3405A-1.8 datasheet PDF. This datasheet also includes the LTC3405A-15 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LTC3405A-15_LinearTechnology.pdf) that lists specifications for multiple related part numbers.

Overview

LTC3405A-1.5/LTC3405A-1.8 1.5V, 1.8V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT U.

Key Features

  • High Efficiency: Up to 93%.
  • Very Low Quiescent Current: Only 20µA During Operation.
  • 300mA Output Current at VIN = 3V.
  • 2.5V to 5.5V Input Voltage Range.
  • 1.5MHz Constant Frequency Operation.
  • No Schottky Diode Required.
  • Low Dropout Operation: 100% Duty Cycle.
  • Stable with Ceramic Capacitors.
  • Shutdown Mode Draws < 1µA Supply Current.
  • ±3% Output Voltage Accuracy.
  • Current Mode Operation for Excellent Line and Load Transient Response.
  • Overtemp.