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LM2720 - PWM Controller

General Description

The LM2720 provides an attractive solution for power supplies of high power microprocessors exhibiting ultra fast load transients.

Key Features

  • n 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 for VID code 11111 Selectable internal or external clock Digital 16-step soft start Input under-voltage lock-out, over-current protection Open-drain power good signal output.

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM2720 5-Bit Programmable, High Frequency Multi-phase PWM Controller February 2000 LM2720 5-Bit Programmable, High Frequency Multi-phase PWM Controller General Description The LM2720 provides an attractive solution for power supplies of high power microprocessors exhibiting ultra fast load transients. Compared to a conventional single-phase supply, an LM2720 based multi-phase supply distributes the thermal and electrical loading among components in multiple phases and greatly reduces the corresponding stress in each component. The LM2720 can be programmed to control either a 3-phase converter or a 4-phase converter. Phase shift among the phases is 120˚ in the case of three phase and 90˚ with four-phase.