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MAX1639 Datasheet High-speed Step-down Controller

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-1337; Rev 0; 2/98 KIT ATION EVALU E L B A AVAIL High-Speed Step-Down Controller with Synchronous Rectification for CPU.

General Description

The MAX1639 is an ultra-high-performance, step-down DC-DC controller for CPU power in high-end puter systems.

Designed for demanding applications in which output voltage precision and good transient response are critical for proper operation, it delivers over 35A from 1.1V to 4.5V with ±1% total accuracy from a +5V ±10% supply.

Excellent dynamic response corrects output transients caused by the latest dynamically clocked CPUs.

Key Features

  • include internal digital soft-start, a power-good output, and a 3.5V ±1% reference output. The MAX1639 is available in a 16-pin narrow SOIC package. ____________________________Features o Better than ±1% Output Accuracy Over Line and Load o Greater than 90% Efficiency Using N-Channel MOSFETs o Pin-Selected High Switching Frequency: 300kHz, 600kHz, or 1MHz o Over 35A Output Current o Resistor-Divider Adjustable Output from 1.1V to 4.5V o Current-Mode Control for Fast Transient Response and Cycle.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX1630 Multi-Output / Low-Noise Power-Supply Controllers
MAX1631 Multi-Output / Low-Noise Power-Supply Controllers
MAX1632 Multi-Output / Low-Noise Power-Supply Controllers
MAX1634 Multi-Output / Low-Noise Power-Supply Controllers
MAX1635 Multi-Output / Low-Noise Power-Supply Controllers
MAX1636 Low-Voltage / Precision Step-Down Controller
MAX1637 Miniature / Low-Voltage / Precision Step-Down Controller
MAX1638 High-Speed Step-Down Controller
MAX160 uP Compatible 8 Bit A/D Converter
MAX1600 Dual-Channel CardBus and PCMCIA VCC/VPP Power-Switching Networks

MAX1639 Distributor