LM2640 Datasheet (Texas Instruments) - Dual Adjustable Step-Down Switching Power Supply Controller

LM2640, Dual Adjustable Step-Down Switching Power Supply Controller

The LM2640 is a dual step-down power supply controller intended for application in notebook personal computers and other battery-powered equipment.

Fixed-frequency synchronous drive of logic-level Nchannel power MOSFETs is combined with an optional pulse-skipping mode to achieve ultra efficient powe

LM2640 Features

* 1

* 2 200 kHz Fixed-Frequency Switching

* Switching Synchronization with an External Signal up to 400 kHz

* Optional Pulse-Skipping Mode

* Adjustable Secondary Feedback

* Input Undervoltage Lockout

* Output Undervoltage Shutdown Protection

* Out