Description
www.DataSheet4U.com LM2745/8 Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization May 2005 LM2745/8 Synchronous Bu.
The LM2745/8 are high-speed synchronous buck regulator controllers with an accurate feedback voltage accuracy of ± 1.
Features
* 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 fre
Applications
* n n n n n Down Conversion from 3.3V Cable Modem, DSL and ADSL Laser Jet and Ink Jet Printers Low Voltage Power Modules DSP, ASIC, Core and I/O
Typical Application
20137401
© 2005 National Semiconductor Corporation
DS201374
www. national. com
LM2745/8
Connection Diagrams
20137490
20137402
14-