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LT3905 - Boost DC/DC Converter

General Description

The LT®3905 is a fixed frequency current-mode step-up converter designed to bias avalanche photodiodes (APD) in optical receivers.

Key Features

  • n 65V, 350mA Internal DMOS Switch n Integrated Schottky Diode n 2% Accurate APD Current Monitoring Over the 3µA to 3mA Range n Single Resistor Programs Maximum APD Current n Fast APD Current Limiter with Indicator n Programmable Loss-of-Signal Indicator n CTRL Pin Adjusts Output Voltage n Programmable VIN Undervoltage Lockout n High Efficiency Step-Up Converter n Selectable 1MHz/2MHz Switching Frequency n Internally Compensated n Internal Soft-Start n 2.7V to 12V VIN Range n Low Shutdown Current.

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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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LT3905 Boost DC/DC Converter with APD Current Monitor Features n 65V, 350mA Internal DMOS Switch n Integrated Schottky Diode n 2% Accurate APD Current Monitoring Over the 3µA to 3mA Range n Single Resistor Programs Maximum APD Current n Fast APD Current Limiter with Indicator n Programmable Loss-of-Signal Indicator n CTRL Pin Adjusts Output Voltage n Programmable VIN Undervoltage Lockout n High Efficiency Step-Up Converter n Selectable 1MHz/2MHz Switching Frequency n Internally Compensated n Internal Soft-Start n 2.