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LTC3822-1 - Synchronous Step-Down DC/DC Controller

General Description

Dual N-Channel MOSFET Synchronous Drive No Current Sense Resistor Required Optimized for 3.3VIN and Li-Ion Applications Constant Frequency Current Mode Operation for Excellent Line and Load Transient Response ±1% 0.6V Reference Low Dropout Operation: 99% Duty Cyc

Key Features

  • No.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LTC3822-1 FEATURES No RSENSETM, Low Input Voltage, Synchronous Step-Down DC/DC Controller DESCRIPTION ■ Dual N-Channel MOSFET Synchronous Drive ■ No Current Sense Resistor Required ■ Optimized for 3.3VIN and Li-Ion Applications ■ Constant Frequency Current Mode Operation for Excellent Line and Load Transient Response ■ ±1% 0.6V Reference ■ Low Dropout Operation: 99% Duty Cycle ■ Phase-Lockable or Adjustable Frequency: 250kHz to 750kHz ■ Internal Soft-Start Circuitry ■ Tracking and Adjustable Soft-Start Input ■ Selectable Maximum Peak Current Sense Threshold ■ Selectable Burst Mode®/ Forced Continuous/Pulse Skipping Mode at Light Load ■ Digital RUN Control Pin ■ Output Overvoltage Protection ■ Micropower Shutdown: IQ = 7.