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LTC3822-1 Datasheet Synchronous Step-down DC/dc Controller

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC3822-1.

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 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 = 7.5µA ■ Tiny Thermally Enhanced 12-Pin (3mm × 3mm) DFN or 16-Pin Narrow SSOP Packages APPLICATIONS ■ Single Cell Li-Ion Powered Systems ■ 3.3VIN Systems , LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology Corporation.

No RSENSE is a trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Key Features

  • No.

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