UCD9220 Overview
The UCD9220 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 configuration, monitoring and management. The UCD9220 was designed to provide a wide variety of desirable.
UCD9220 Key Features
- 2 Fully Configurable Multi-Output and MultiPhase Non-Isolated DC/DC PWM Controller
- Controls Up To Two Voltage Rails and Up To Four Phases
- Supports Switching Frequencies Up to 2MHz With 250 ps Duty-Cycle Resolution
- Up To 1mV Closed Loop Resolution
- Hardware-Accelerated, 3-Pole/3-Zero
- Supports Multiple Soft-Start and Soft-Stop Configurations Including Prebias Start-up
- Supports Voltage Tracking, Margining and Sequencing
- Supports Current and Temperature Balancing for Multi-Phase Power Stages
- Supports Phase Adding/Shedding for MultiPhase Power Stages
- Sync In /Out Pins Align DPWM Clocks Between Multiple UCD9220 Devices