Datasheet Summary
5V/12V Synchronous-Rectified Buck Controller
General Description
The uP1542 is a pact synchronous-rectified buck controller specifically designed to operate from 5V or 12V supply voltage and to deliver high quality output voltage as low as 0.6V for uP1542S/U (linear OCP).
The uP1542 adopts constant frequency, voltage mode control scheme, featuring easy-to-use, low external ponent count, and fast transient response. Fixed 300kHz operation provides an optimal level of integration to reduce size and cost of the power supply.
This controller integrates internal MOSFET drivers that support 12V+12V bootstrapped voltage for high efficiency power conversion. The bootstrap diode is...