ZHCSJS6 May 2018 LM3102-Q1
PRODUCTION DATA.
The feedback voltage at the FB pin is compared to a 0.8-V internal reference. In normal operation (the output voltage is regulated), an ON-time period is initiated when the voltage at the FB pin falls below 0.8 V. The main MOSFET stays on for the ON-time, causing the output voltage and consequently the voltage of the FB pin to rise above 0.8 V. After the ON-time period, the main MOSFET stays off until the voltage of the FB pin falls below 0.8 V again. Bias current at the FB pin is nominally 5 nA.