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Network Interface Card Smart Regulator

Dual Smart Regulator with Parallel Auxiliary Switch for Network Interface Card

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet Network Interface Card Smart Regulator May 17, 2000

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Key Features

  • Uninterrupted +3.3V Output
  • Up to 500mA Output Current
  • High-Power 0.9W SO-8 Package
  • Thermal and Overcurrent Protection
  • Only 1µF Output Capacitor
  • Internal 0.18Ω +3.3V Auxiliary Switch
  • No Reverse Current to Inactive Inputs

Applications/Uses

  • Modem Cards
  • Network-Interface Cards
  • PCI Adapter Cards

Description

The MAX1810 powers peripheral component interconnect(PCI) Ethernet network interface cards (NICs), modem cards, and other devices that utilize both the main and auxiliary (standby) voltages supplied by PCI-compliant systems. The device generates an uninterrupted+3.3V at up to 500mA from either a +5V main ora +5V standby supply. When both +5V inputs fall below+4.1V, an internal switch connects the +3.3V auxiliary input to the output.

An auxiliary switch resistance of only 0.18Ω minimizes output drop from the +3.3V auxiliary supply. In addition,the MAX1810 guarantees that no reverse current flows from the output to any unbiased or inactive input, and remains stable with as little as 1µF of output bypass capacitance at its output.

The MAX1810 is available in a compact 8-pin high-power(0.9W) SO package.

Simplified Block Diagram

MAX1810: Typical Operating Circuit MAX1810: Typical Operating Circuit Zoom icon

Technical Docs

Data Sheet Network Interface Card Smart Regulator May 17, 2000

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .