LM2639 Datasheet - National Semiconductor

LM2639 High Frequency Multi-phase PWM Controller

The LM2639 provides an attractive solution for power supplies of high power microprocessors (such as Pentium II™, M II™, K6™-2, K6™-3, etc.) exhibiting ultra fast load transients. Compared to a conventional single-phase supply, an LM2639 based multi-phase supply distributes the thermal and electrica.

LM2639 Features

* n n n n n n n n n n n Ultra fast load transient response Enables all surface-mount-design Selectable 2, 3, 4 phase operation Clock frequency from 40 kHz to 10 MHz Precision load current sharing 5-bit programmable from 3.5V to 1.3V VID code compatible to VRM 8.X specification Output voltage is 2.0V f

LM2639 Datasheet (151.91 KB)

LM2639 Datasheet Preview — Preview of LM2639 PDF

Datasheet Details

Part number:

LM2639

Manufacturer:

National Semiconductor

File Size:

151.91 KB

Description:

High frequency multi-phase pwm controller.

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LM2639 High Frequency Multi-phase PWM Controller National Semiconductor

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