LM2641 Datasheet - National Semiconductor

LM2641 Dual Adjustable Step-Down Switching Power Supply Controller

The LM2641 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 N-channel power MOSFETs is combined with an optional pulse-skipping mode to achieve ultra efficient pow.

LM2641 Features

* n 300 kHz fixed-frequency switching n Switching synchronization with an external signal up to 400 kHz n Optional pulse-skipping mode n Adjustable secondary feedback n Input undervoltage lockout n Output undervoltage shutdown protection n Output overvoltage shutdown protection n Programmable soft-sta

LM2641 Datasheet (466.72 KB)

LM2641 Datasheet Preview — Preview of LM2641 PDF

Datasheet Details

Part number:

LM2641

Manufacturer:

National Semiconductor

File Size:

466.72 KB

Description:

Dual adjustable step-down switching power supply controller.

📁 Related Datasheet

LM2640 Dual Adjustable Step-Down Switching Power-Supply Controller (National Semiconductor)

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

LM26400Y 500-kHz Wide Input Range Buck Regulator (Texas Instruments)

LM26400Y 500kHz Wide Input Range Buck Regulator (National Semiconductor)

LM2641 Dual Adjustable Step-Down Switching Power Supply Controller (Texas Instruments)

LM2642 Two-Phase Synchronous Step-Down Switching Controller (National Semiconductor)

LM2642 Two-Phase Synchronous Step-Down Switching Controller (Texas Instruments)

LM26420 High-Efficiency Synchronous DC/DC Converter (Texas Instruments)

LM26420 High Frequency 2.0A Load - Step-Down DC-DC Regulator (National Semiconductor Corporation)

LM26420-Q1 High-Efficiency Synchronous DC/DC Converter (Texas Instruments)

TAGS

LM2641 Dual Adjustable Step-Down Switching Power Supply Controller National Semiconductor

Image Gallery

LM2641 Distributor