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LTC3409A - 600mA Low VIN Buck Regulator

General Description

The LTC®3409A is a high efficiency, monolithic synchronous buck regulator using a constant frequency, current mode architecture.

The LTC3409A improves upon the LTC3409’s light load regulation in Burst Mode operation.

The output voltage is adjusted via an external resistor divider.

Key Features

  • n 1.6V to 5.5V Input Voltage Range n 0.62V to 5.5V Output Voltage Range n Internal Soft-Start n Selectable 1.7MHz or 2.6MHz Constant Frequency Operation n Internal Oscillator Can Be Synchronized to an External Clock, 1MHz to 3MHz Range n High Efficiency: Up to 95% n 65μA Quiescent Current, Burst Mode® Operation n 600mA Output Current (VIN = 1.8V, VOUT = 1.2V) n 750mA Peak Inductor Current n No Schottky Diode Required n Low Dropout Operation: 100% Duty Cycle n 0.612V Reference Voltage n Stable wit.

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Datasheet Details

Part number LTC3409A
Manufacturer Linear Technology Corporation
File Size 313.73 KB
Description 600mA Low VIN Buck Regulator
Datasheet download datasheet LTC3409A Datasheet

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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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LTC3409A 600mA Low VIN Buck Regulator in 3mm × 3mm DFN FEATURES n 1.6V to 5.5V Input Voltage Range n 0.62V to 5.5V Output Voltage Range n Internal Soft-Start n Selectable 1.7MHz or 2.6MHz Constant Frequency Operation n Internal Oscillator Can Be Synchronized to an External Clock, 1MHz to 3MHz Range n High Efficiency: Up to 95% n 65μA Quiescent Current, Burst Mode® Operation n 600mA Output Current (VIN = 1.8V, VOUT = 1.2V) n 750mA Peak Inductor Current n No Schottky Diode Required n Low Dropout Operation: 100% Duty Cycle n 0.612V Reference Voltage n Stable with Ceramic Capacitors n Shutdown Mode Draws <1μA Supply Current n Current Mode Operation for Excellent Line and Load Transient Response n Overtemperature Protection n Available in a Low Profile (0.