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LM5140QRWGTQ1 - TI
Manufacturer:
TI
ManyChip's Part#:
MC4519744
Category:
DC to DC Converter
Package:
VQFN-40
Datasheet:
Datasheet 3D Model
Description:
Conv DC-DC 3.8V to 65V Synchronous Step Down Dual-Out 1.5V to 15V 40A/20A 40Pin VQFNP EP T/R
Stock Locations:
Availability:
226 pcs In Stock
MOQ:
1 pcs
Unit Price:
$ 97.83

Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN step-down converter applications. The control method is based on current mode control. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting, and easier loop compensation.
The LM5140-Q1 features adjustable slew rate control to simplify compliance with the CISPR and automotive EMI requirements. The LM5140-Q1 operates at selectable switching frequencies of 2.2 MHz or 440 kHz with the two controller channels switching 180°; out of phase. In light or no-load conditions, the LM5140-Q1 operates in skip cycle mode for improved low power efficiency. The LM5140-Q1 includes a high voltage bias regulator with automatic switchover to an external bias supply to improve efficiency and reduce input current. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overloads, independent power good outputs, and independent enable inputs.

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LM5140QRWGTQ1 Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Number of Pins	40 Pin
Case/Package	VQFN-40
Supply Voltage (DC)	3.80V (min)
Number of Outputs	2 Output
Output Voltage	1.5V ~ 15V
Output Current	150 mA
Number of Positions	40 Position
Quiescent Current	35.0 µA
Number of Regulated Outputs	2 Output
Rise Time	4 ns
Switching Frequency	2.2 MHz
Topology	Buck
Switching Current	0.25 A
Duty Cycle	50 %
Input Voltage (Max)	65 V
Input Voltage (Min)	3.8 V
Fall Time	3 ns
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage (Max)	65 V
Supply Voltage (Min)	3.8 V
Input Voltage	65 V
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Operating Temperature	-40℃ ~ 150℃ (TJ)
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

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