Description

This is an electronic component model named MAX1639ESE+, which falls under the product category of DC DC switching controllers. It is designed to be used for CPU power in high-end computer systems. The MAX1639 is an ultra-high-performance, step-down DC-DC controller that is capable of delivering over 35A from 1.1V to 4.5V with ±1% total accuracy from a +5V ±10% supply.

Specifications and features

Output Accuracy: Better than ±1% over line and load
Efficiency: Greater than 90% using N-Channel MOSFETs
Switching Frequency: 300kHz, 600kHz, or 1MHz
Output Current: Over 35A
Output Voltage Range: 1.1V to 4.5V (resistor-divider adjustable)
Control Type: Current-mode control for fast transient response and cycle-by-cycle current-limit protection
Protection Features: Short-circuit protection with foldback current limiting, crowbar overvoltage protection
Additional Features: Power-good (PWROK) output, digital soft-start, high-current (2A) drive outputs

Application Scenarios

The MAX1639 can be used as a local DC-DC converter for CPUs, in workstations, desktop computers, LAN servers, and GTL bus termination.

Comparison

• Precise output voltage with better than ±1% total accuracy over line and load
• High efficiency using N-Channel MOSFETs
• Current-mode control for fast transient response and cycle-by-cycle current-limit protection

• This component is designed specifically for use in high-end computer systems and may not be suitable for all applications
• The high-current drive outputs may not be necessary for all applications and add an extra cost to the component
• The MAX1639 is not a standalone DC-DC converter and requires additional components to function properly