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LTC3636 - 20V Monolithic Synchronous Step-Down Regulator

General Description

The LTC®3636/LTC3636-1 is a high efficiency, dualchannel monolithic synchronous buck regulator using a controlled on-time current mode architecture, with phase lockable switching frequency.

The operating supply voltage range is from 3.1V to 20V, making it suitable for lithium-ion battery stacks as well as point of load power supply applications from a 12V or 5V input.

The operating frequency is programmable from 500kHz to 4MHz with an external resistor and may be synchronized to an external clock signal.

Overview

LTC3636/LTC3636-1 Dual Channel 6A, 20V Monolithic Synchronous Step-Down.

Key Features

  • nn Wide VIN Range: 3.1V to 20V nn Wide VOUT Range: nn 0.6V to 5V (LTC3636) nn 1.8V to 12V (LTC3636-1) nn Output Current per Channel: 6A nn High Efficiency: Up to 95% nn Die Temperature Monitor nn Adjustable Switching Frequency: 500kHz to 4MHz nn External Frequency Synchronization nn Current Mode Operation for Excellent Line and Load Transient Response nn 0.6V Reference Allows Low Output Voltages nn User Selectable Burst Mode® Operation or Forced Continuous Operation nn Output Voltage Tracking an.