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LTC3636-1

Linear Technology
Part Number LTC3636-1
Manufacturer Linear Technology
Description 20V Monolithic Synchronous Step-Down Regulator
Published Feb 15, 2018
Detailed Description LTC3636/LTC3636-1 Dual Channel 6A, 20V Monolithic Synchronous Step-Down Regulator FEATURES nn Wide VIN Range: 3.1V to 2...
Datasheet PDF File LTC3636-1 PDF File

LTC3636-1
LTC3636-1

Overview
LTC3636/LTC3636-1 Dual Channel 6A, 20V Monolithic Synchronous Step-Down Regulator 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 and Soft-Start Capability nn Short-Circuit Protected nn Overvoltage Input and Overtemperature Protection nn Power Good Status Outputs nn Low Profile 4mm × 5mm 28-Lead QFN Package APPLICATIONS nn Distributed Power Systems nn Battery-Powered Instruments nn Point-of-Load Power Supplies 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.
The high frequency capability allows the use of small surface mount inductors and capacitors.
The unique constant frequency/controlled ontime architecture is ideal for high step-down ratio applications that operate at high frequency while demanding fast transient response.
The LTC3636/LTC3636-1 can select between forced continuous mode and high efficiency Burst Mode operation.
The LTC3636 and LTC3636-1 differ in their output voltage sense range.
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