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Linear Tech switching regulator delivers continuous 2.75A output

Posted: 23 Dec 2002 ?? ?Print Version ?Bookmark and Share

Keywords:linear technology? lt3430? switching regulator? voltage regulator ic?

The LT3430 constant frequency, step-down switching regulator from Linear Technology Corp. can operate from an input of 5.5V to 6V and is capable of delivering up to 2.75A of continuous output current at output voltages down to 1.25V, making it suitable for telecom, automotive, and industrial applications.

Available in a TSSOP-16E thermally enhanced package, the device includes a 3A internal switch and features a high-voltage architecture that enables it to operate at efficiencies of up to 90 percent even in low duty cycle applications.

The LT3430 switches at 200kHz to keep external components small. A sync pin allows external synchronization from 228kHz to 700kHz with a logic level input. Supply current is 2.5mA during normal operation and 25?A during shutdown mode.

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