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Description:5-Bit Programmable Dual Power Supply Controller for Pentium II Processor
Manufacturer:Analog Devices
Datasheet:PDF (164K).
Click here to download *)

The ADP3153 is a highly efficient synchronous switching regulator controller and a linear regulator controller. The switching regulator controller is optimized for Pentium II and Deschutes Processor applications where 5 V is stepped down to a digitally controlled output voltage between 1.8 V and 3.5 V. Using a 5-bit DAC to read a voltage identification (VID) code directly from the processor, the ADP3153 uses a current mode constant offtime architecture to generate its precise output voltage. The ADP3153 drives two N-channel MOSFETS in a synchronous rectified buck converter, at a maximum switching frequency of 250 kHz. Using the recommended loop compensation and guidelines, the ADP3153 provides a dc/dc converter that meets Intel's stringent transient specifications with a minimum number of output capacitors and smallest footprint. Additionally, the current mode architecture also provides guaranteed short circuit protection and adjustable current limiting.

Click here to download ADP3153ARU Datasheet
Click here to download ADP3153ARU Datasheet
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