ZHCSOB0A july 2021 – august 2023 LM5157
PRODUCTION DATA
The device provides an internal switch with an rDS(ON) that is typically 45 mΩ when the BIAS pin is greater than 5 V. The rDS(ON) of the internal switch is increased when the BIAS pin is less than 5 V. The device temperature must be checked at the minimum supply voltage especially when the BIAS pin is less than 5 V.
The dV/dT of the SW pin must be limited during the 90-μs internal start-up delay to avoid a false turn-on, which is caused by the coupling through CDG parasitic capacitance of the internal MOSFET switch.