LM22676QMRE-5.0/NOPB

开关稳压器 3A SIMPLE SWITCHER, Step-Down Voltage Regulator with Precision Enable 8-SO PowerPAD -40 to 125

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