LM2745, LM2748 - (LM2745 / LM2748) Synchronous Buck Controller

National Semiconductor

Datasheet Details

Part number	LM2745, LM2748
Manufacturer	National Semiconductor
File Size	1.05 MB
Description	(LM2745 / LM2748) Synchronous Buck Controller
Datasheet	LM2748_NationalSemiconductor.pdf
Note	This datasheet PDF includes multiple part numbers: LM2745, LM2748. Please refer to the document for exact specifications by model.

The LM2745/8 are high-speed synchronous buck regulator controllers with an accurate feedback voltage accuracy of ± 1.5%.

a fixed-frequency voltage-mode PWM control architecture which is adjustable from 50 kHz to 1 MHz with one external resistor. In addition, the LM2745 also allows the switching frequency to be synchronized to an external clock signal over the range of 250 kHz to 1 MHz. This wide range of switching frequency gives the power supply designer the flexibility to make better tradeoffs between component size, cost and efficiency. Features include the ability to startup with a pre-biased load on the outpu.

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Published: Jan 26, 2007 |