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LM25141QRGERQ1

制造商型号：
LM25141QRGERQ1
制造商：
Texas Instruments
产品类型：
Synchronous Buck Controller
系列：
LM25141-Q1
封装：
24-VQFN
描述：
Automotive 42-V synchronous buck controller with selectable 440-kHz or 2.2-MHz switching.

产品属性

属性数值
Input Voltage3.8 to 42 V
Output VoltageFixed 3.3 V or 5 V; adjustable 1.5 to 15 V
Switching Frequency440 kHz or 2.2 MHz selectable
Control ModePeak current mode
Gate DrivesExternal high-side and low-side MOSFETs
EMI ControlAdjustable gate-drive slew rate and spread spectrum
Operating Junction Temperature-40 to 150 °C
Automotive QualificationAEC-Q100 Grade 1
Package Details24-VQFN (RGE)

产品详细说明

LM25141QRGERQ1 is an automotive synchronous buck controller in a 24-pin RGE VQFN package, intended to drive external high-side and low-side MOSFETs rather than integrate the power switches.

A 3.8-to-42-V input range supports step-down conversion from vehicle supply rails, while fixed 3.3-V or 5-V outputs and an adjustable 1.5-to-15-V setting cover different downstream loads.

Selecting 440 kHz or 2.2 MHz lets the power designer trade inductor size against switching loss and decide whether operation should sit below or above the AM radio band.

Peak-current-mode control supplies line feed-forward and cycle-by-cycle current limiting, making transient response and overload behavior part of the controller choice.

Slew-rate control and frequency spreading give the layout and EMI team ways to manage switching emissions before the automotive rail is released.

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