Datasheet4U Logo Datasheet4U.com

LM2747 - Synchronous Buck Controller

Description

The LM2747 is a high-speed synchronous buck regulator controller with a feedback voltage accuracy of ± 1%.

It can provide simple down conversion to output voltages as low as 0.6V.

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 LM2747 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.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LM2747 Synchronous Buck Controller Texas Instruments
LM27402 High-Performance Synchronous Buck Controller Texas Instruments
LM27403 Synchronous Buck Controller Texas Instruments
LM2742 N-Channel FET Synchronous Buck Regulator Controller Texas Instruments
LM2743 synchronous buck controller Texas Instruments

Other Datasheets by National Semiconductor (Texas Instruments)

Part Number Description
LM2742 N-Channel FET Synchronous Buck Regulator Controller
LM2743 N-Channel FET Synchronous Buck Regulator Controller
LM2744 Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
LM2745 (LM2745 / LM2748) Synchronous Buck Controller
LM2746 Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.DataSheet4U.com LM2747 Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization March 2006 LM2747 Synchronous Buck Controller with Pre-bias Startup, and Optional Clock Synchronization General Description The LM2747 is a high-speed synchronous buck regulator controller with a feedback voltage accuracy of ± 1%. It can provide simple down conversion to output voltages as low as 0.6V. Though the control section of the IC is rated for 3 to 6V, the driver section is designed to accept input supply rails as high as 14V. The use of adaptive non-overlapping MOSFET gate drivers helps avoid potential shoot-through problems while maintaining high efficiency.