Datasheet Details
Part number:
LM2647, LM2
Manufacturer:
National Semiconductor
File Size:
763.45 KB
Description:
Dual synchronous buck regulator controller.
Note:
This datasheet PDF includes multiple part numbers: LM2647, LM2.
Please refer to the document for exact specifications by model.
LM2647, LM2, Dual Synchronous Buck Regulator Controller
The LM2647 is an adjustable 200-500kHz dual channel voltage-mode controlled high-speed synchronous buck regulator controller ideally suited for battery powered applications such as laptop and notebook computers.
The LM2647 requires only N-channel FETs for both the upper and lower positions of each s
LM2647 Features
* line feedforward to improve the response to input transients. At very light loads, the user can choose between the highefficiency Pulse-skip mode or the constant frequency Forced-PWM mode. Lossless current limiting without the use of external sense resistors is made possible by sensing the voltage d
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