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LM25141-Q1

Part Number	LM25141-Q1
Manufacturer	Texas Instruments
Description	Wide Input Range Synchronous Buck Controller
Published	Nov 7, 2021
Detailed Description	Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design LM25141-Q1 SNVS...
Datasheet	LM25141-Q1 PDF File

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design LM25141-Q1 SNVSAP9A – MARCH 2017 – REVISED FEBRUARY 2018 LM25141-Q1 2.
2-MHz, 42-V Synchronous Buck Controller With Low IQ 1 Features 2 Applications •1 AEC-Q100 Qualified for Automotive Applications: – Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature – Device HBM ESD Classification Level 2 – Device CDM ESD Classification Level C4B • VIN 3.
8 V to 42 V (47 V Absolute Maximum) • Output: Fixed 3.
3 V, 5 V, or Adjustable From 1.
5 V to 15 V With ±0.
8% Accuracy • Optional Frequency Shift by Varying an Analog Voltage or RT Resistor • Meets CISPR 25 / EN 55025 EMI Standards – Fixed 2.
2-MHz or 440-kHz Switching Frequency With ±5% Accuracy – High-Side and Low-Side Gate Drive With Slew Rate Control – Optional Spread Spectrum • Optional Synchronization to an External Clock • Shutdown Mode IQ: 10 µA Typical • Low Standby Mode IQ: 35 µA Typical • 75-mV Current Limit Threshold With ±0.
9% Accuracy • External Resistor or DCR Current Sensing • Output Enable Logic Input • Hiccup Mode for Sustained Overload • Power-Good Indication Output • Selectable Diode Emulation or Forced PWM • VQFN-24 Package With Wettable Flanks • Create a Custom Design Using the LM25141-Q1 With the WEBENCH® Power Designer • Automotive Applications Including: – Infotainment Systems – Instrumentation Clusters – Advanced Driver Assistance Systems (ADAS) 3 Description The LM25141-Q1 is a synchronous buck controller, intended for high-voltage, wide-VIN, step-down regulator applications.
The control method is peak current-mode control.
Current-mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation.
The LM25141-Q1 features slew rate control to simplify the compliance with CISPR and automotive EMI requirements.
The LM25141-Q1 has two selectable switching frequencies: 2.
2 MHz and 440 kHz.
Gate drivers with slew rate control can be ad...

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LM25141-Q1 Wide Input Range Synchronous Buck Controller - Texas Instruments

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