IT电源管理芯datasheet-ucd9240.pdf

UCD9240 SLUS766C – JULY 2008 – REVISED NOVEMBER 2008 Digital PWM System Controller 1FEATURES • Supported by Fusion Digital Power™ 2• Fully Configurable Multi-Output and Designer, a Full Featured PC Based Design Multi-Phase Non-Isolated DC/DC PWM Tool to Simulate, Configure, and Monitor Controller Power Supply Performance. • Controls Up To Four Voltage Rails and Up To APPLICATIONS Eight Phases • Industrial/ATE • Supports Switching Frequencies Up to 2MHz With 250 ps Duty-Cycle Resolution • Networking Equipment • Telecommunications Equipment • Up To 1mV Closed Loop Resolution • Servers • Hardware-Accelerated, 3-Pole/3-Zero • Storage Systems Compensator With Non-Linear Gain for Improved Transient Performance • FPGA, DSP and Memory Power • Supports Multiple Soft-Start and Soft-Stop DESCRIPTION Configurations Including Prebias Start-up • Supports Voltage Tracking, Margining and The UCD9240 is a multi-rail, multi-phase Sequencing