JAJSAH6H January 2006 – October 2017 LM3100
PRODUCTION DATA.
The ratio of these resistors is calculated from:
RFB1 and RFB2 should be chosen from standard value resistors in the range of 1.0 kΩ - 10 kΩ which satisfy the above ratio.
For VOUT = 0.8 V, the FB pin can be connected to the output directly. However, the converter operation needs a minimum inductor current ripple to maintain good regulation when no load is connected. This minimum load is about 10 µA and can be implemented by adding a pre-load resistor to the output.