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ML4880 Datasheet Portable Pc/pcmcia Power Controller

Manufacturer: Micro Linear

Overview: me ed Com °C to 70°C ent Extend –20 Equipm andheld H le b ta for Por ING e e Rang UR T A peratur m e T l FE rcia July 2000 ML4880* Portable PC/PCMCIA Power.

General Description

The ML4880 Portable PC and PCMCIA Power Controller is a complete solution for DC/DC power conversion for portable computing systems with single or multiple PCMCIA slots.

The device provides two synchronous buck controllers to implement mixed voltage systems and a flyback controller for 12V VPP generation for PCMCIA slots.

The flyback architecture enables generation of high currents (150mA or more per slot) on the 12V bus for multiple slot PCMCIA applications.

Key Features

  • s s Regulation to ± 3% maximum: provides 2% PCMCIA switch matrix margin Two synchronous buck controllers for 3.3/3V, 5V generation, and a flyback for high current, 12V generation from 5.5V to 18V input Regulator power conversion efficiencies > 90% Pulse frequency modulation for high efficiency operation Independent regulator shutdown for full load isolation Adjustable current limit Wide input voltage range (5.5V to 18V) s s s s s (.
  • Indicates Part is End Of Life as of July 1, 2000) BLOCK.

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