((hot)) | Ucd3138r

The defining feature of the UCD3138 is the DPP module. This is a hardware-based control loop accelerator. A typical DPP block includes:

At the heart of the device is a 32-bit ARM7TDMI-S processor running at up to 100 MHz. While capable of general-purpose computing, its primary role in a power supply context is system management, housekeeping, and communication handling. The CPU configures the DPPs and handles slower control loops (e.g., voltage tracking during soft-start) but is typically not involved in the high-frequency switching cycle-by-cycle decision making. ucd3138r

The separation of the control loop (handled by hardware DPP) and the management logic (handled by CPU) simplifies the software architecture, making the system more robust and easier to certify for safety standards. The defining feature of the UCD3138 is the DPP module

A high-speed 16 MSPS converter with 1 mV/LSB resolution for precise error measurement. While capable of general-purpose computing, its primary role

Offers 8 outputs with 250 ps pulse width resolution and up to 2 MHz switching frequency. Key Performance Features

The UCD3138R is optimized for high efficiency across varying loads and supports advanced power management techniques: