SLVSAX2B September 2011 – June 2020 TPS61170-Q1
PRODUCTION DATA.
TPS61170-Q1 has a cycle-by-cycle overcurrent limit feature that turns off the power switch once the inductor current reaches the overcurrent limit. The PWM circuitry resets itself at the beginning of the next switch cycle. During an overcurrent event, this results in a decrease of output voltage that is directly proportional to load current. The current limit threshold as well as input voltage, output voltage, switching frequency and inductor value determine the maximum available output current. Larger inductance values typically increase the current output capability because of the reduced current ripple. See the Application and Implementation section for the output current calculation.