Datasheet4U Logo Datasheet4U.com

LM5149-Q1 - DC/DC Controller

General Description

The LM5149-Q1 is a 80-V, ultra-low IQ synchronous buck DC/DC controller for high-current, single-output applications.

The controller uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation.

Key Features

  • AEC-Q100 qualified for automotive.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LM5100 High Voltage High Side and Low Side Gate Driver National Semiconductor
LM5100A (LM5100x / LM5101x) High Voltage High Side and Low Side Gate Drivers National Semiconductor
LM5100B (LM5100x / LM5101x) High Voltage High Side and Low Side Gate Drivers National Semiconductor
LM5100C (LM5100x / LM5101x) High Voltage High Side and Low Side Gate Drivers National Semiconductor
LM5101 High Voltage High Side and Low Side Gate Driver National Semiconductor

Other Datasheets by Texas Instruments

Part Number Description
LM5149 DC/DC Controller
LM5140-Q1 Wide Input Range Dual Synchronous Buck Controller
LM5141-Q1 Wide Input Range Synchronous Buck Controller
LM5143 3.5-V to 65-V Dual Synchronous Buck DC/DC Controller
LM5143-Q1 Automotive 3.5-V to 65-V Dual Synchronous Buck 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
LM5149-Q1 SNVSBN7C – DECEMBER 2020 – REVISED FEBRUARY 2023 LM5149-Q1 80-V Automotive, Synchronous, Buck, DC/DC Controller with Ultra-Low IQ and Integrated Active EMI Filter 1 Features • AEC-Q100 qualified for automotive applications: – Device temperature grade 1: –40°C to +125°C ambient operating temperature • Functional Safety-Capable – Documentation available to aid functional safety system design • Two integrated EMI mitigation mechanisms – Active EMI Filter for enhanced EMI performance at lower frequencies – Selectable dual random spread spectrum (DRSS) for enhanced EMI performance across low and high-frequency bands – EMI reduced by an average of 25 dBµV – Reduces the external differential-mode input filter size by 50% and lowers systems cost • Versatile synchronous buck DC/DC contro