I am working on a design using LT1944, with input of 2-3V and the first output of 16V/10mA max. The second output I would like to set at a fixed multiple of the input voltage (1.5x), so it varies from 3-4.5V according to the input. Max current from that output would be 100mA. So in essence, not unlike a charge pump function. Would this be possible?
The current limit is 250mA, not possible for 16Vout/100mA from 5Vin. Please use LTspice to verify your design changes. Else you may need to look for other boost regulators.