UCD9224,pdf(Digital PWM System Controller)

The UCD9224 is a mulTI-rail, mulTI-phase synchronous buck digital PWM controller designed for non-isolated DC/DC power applicaTIons. This device integrates dedicated circuitry for DC/DC loop management with flash memory and a serial interface to support configurability, monitoring and management.

The UCD9224 was designed to provide a wide variety of desirable features for non-isolated DC/DC converter applicaTIons while minimizing the total system component count by reducing external circuits. The solution integrates multi-loop management with sequencing, margining, tracking and intelligent phase management to optimize for total system efficiency. Additionally, loop compensation and calibration are supported without the need to add external components.