ZHCSFE3B March 2016 – November 2017 LM5161
PRODUCTION DATA.
The VCC capacitor charges the bootstrap capacitor during the OFF-time of the high-side switch and powers internal logic circuits and the low side sync FET gate driver. The bootstrap capacitor biases the high-side gate driver during the high-side FET ON-time. A good value for C13 (CVCC) is 1 µF. A good choice for C1 (CBST) is 10 nF. Both must be high quality X7R ceramic capacitors.