ZHCSB15B May 2013 – October 2023 TPS54531
PRODUCTION DATA
The TPS54531 device has an integrated boot regulator and requires a 0.1-μF ceramic capacitor between the BOOT and PH pins to provide the gate-drive voltage for the high-side MOSFET. A ceramic capacitor with an X7R- or X5R-grade dielectric is recommended because of the stable characteristics over temperature and voltage. To improve drop out, the TPS54531 device is designed to operate at 100% duty cycle as long as the BOOT-to-PH pin voltage is greater than 2.1 V (typical).