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ADP3153 Datasheet 5-bit Programmable Dual Power Supply Controller

Manufacturer: Analog Devices

Overview: a.

General Description

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.

Key Features

  • 5-Bit Digitally Programmable 1.8 V to 3.5 V Output Voltage Dual N-Channel Synchronous Driver Total Output Accuracy ؎ 1% (0؇C to +70؇C) High Efficiency Current-Mode Operation Short Circuit Protection Power Good Output Overvoltage Protection Crowbar On-Board Linear Regulator Controller VRM 8.2 Compatible Narrow Body TSSOP 20-Lead Package.

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