LM22676 Datasheet PDF

●Description

●The LM22676 switching regulator provides all of the functions necessary to implement an efficient high voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 3 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5 V output and adjustable output voltage options are available.

●Features

●• Wide Input Voltage Range: 4.5 V to 42 V

●• Internally Compensated Voltage Mode Control

●• Stable with Low ESR Ceramic Capacitors

●• 120 mΩ N-Channel MOSFET PFM Package

●• 100 mΩ N-Channel MOSFET PSOP-8 Package

●• Output Voltage Options:

●  -ADJ (Outputs as Low as 1.285 V)

●  -5.0 (Output Fixed to 5 V)

●• ±1.5% Feedback Reference Accuracy

●• Switching Frequency of 500 kHz

●• –40°C to 125°C Operating Junction Temperature Range

●• Precision Enable Pin

●• Integrated Boot-Strap Diode

●• Integrated Soft-Start

●• Fully WEBENCH® Enabled

●• LM22676Q is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Operating Junction Temperature)

●• SO PowerPAD (Exposed Pad

●• PFM (Exposed Pad)

●Applications

●• Industrial Control

●• Telecom and Datacom Systems

●• Embedded Systems

●• Conversions from Standard 24 V, 12 V and 5 V Input Rails