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