LT1111 Overview
Key Features
- The device requires only three external components to deliver a fixed output of 5V or 12V
- Supply voltage ranges from 2V to 12V in step-up mode and to 30V in step-down mode
- The LT1111 functions equally well in step-up, stepdown, or inverting applications
- The LT1111 oscillator is set at 72kHz, optimizing the device to work with off-the-shelf surface mount inductors
- The device can deliver 5V at 100mA from a 3V input in step-up mode or 5V at 200mA from a 12V input in stepdown mode
- Switch current limit can be programmed with a single resistor
- For input sources of less than 2V use the LT1110
