LT8640EUDC#TRPBF
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Analog Devices Inc. LT8640EUDC#TRPBF

Manufacturer No:
LT8640EUDC#TRPBF
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC REG BUCK ADJUSTABLE 5A 20QFN
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The LT8640EUDC#TRPBF is a high-efficiency, 42V, 5A synchronous step-down regulator produced by Analog Devices Inc. This regulator features the Silent Switcher 2 architecture, which is designed to minimize EMI emissions while delivering high efficiency across a wide load range. It is suitable for a variety of applications, including industrial equipment, automotive electronics, telecommunications equipment, and test and measurement instruments.

Key Specifications

Parameter Min Typ Max Units
Input Voltage Range 3.4 42 V
Output Voltage Range 0.97 42 V
Output Current 5 A
Switching Frequency Range 210kHz 2MHz
Minimum Input Voltage 2.9 3.4 V
Quiescent Current (VEN/UV = 0V) 0.75 0.75 3 µA
Feedback Reference Voltage 0.958 0.964 0.970 V
Operating Temperature Range -40°C 125°C / 150°C
Package Type 18-Lead 3mm × 4mm QFN

Key Features

  • High efficiency over a wide load range
  • Silent Switcher 2 architecture for low noise and EMI performance
  • Synchronous rectification for high efficiency
  • Adjustable output voltage from 0.97V to 42V
  • Wide switching frequency range of 210kHz to 2MHz
  • Thermally enhanced 18-lead 3mm × 4mm QFN package for improved power dissipation
  • Stable operation with low-ESR ceramic output capacitors
  • AEC-Q100 qualified for automotive applications
  • Output soft-start and tracking capabilities
  • Forced Continuous Mode (LT8640-1 only)
  • Safely tolerates inductor saturation in overload

Applications

  • Industrial equipment
  • Automotive electronics
  • Telecommunications equipment
  • Test and measurement instruments
  • GSM power supplies
  • General-purpose step-down applications

Q & A

  1. What is the input voltage range of the LT8640EUDC#TRPBF?

    The input voltage range is from 3.4V to 42V.

  2. What is the maximum output current of the LT8640EUDC#TRPBF?

    The maximum output current is 5A.

  3. What is the switching frequency range of the LT8640EUDC#TRPBF?

    The switching frequency range is from 210kHz to 2MHz.

  4. What architecture does the LT8640EUDC#TRPBF use to minimize EMI emissions?

    The Silent Switcher 2 architecture is used to minimize EMI emissions.

  5. Is the LT8640EUDC#TRPBF AEC-Q100 qualified for automotive applications?
  6. What type of package does the LT8640EUDC#TRPBF come in?
  7. What is the operating temperature range of the LT8640EUDC#TRPBF?
  8. Does the LT8640EUDC#TRPBF support synchronous rectification?
  9. Is the LT8640EUDC#TRPBF ROHS3 compliant?
  10. What are some of the key applications of the LT8640EUDC#TRPBF?

Product Attributes

Function:Step-Down
Output Configuration:Positive
Topology:Buck
Output Type:Adjustable
Number of Outputs:1
Voltage - Input (Min):3.4V
Voltage - Input (Max):42V
Voltage - Output (Min/Fixed):0.97V
Voltage - Output (Max):42V
Current - Output:5A
Frequency - Switching:210kHz ~ 2MHz
Synchronous Rectifier:Yes
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:20-WFQFN, 18 Leads, Exposed Pad
Supplier Device Package:20-QFN (3x4)
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Similar Products

Part Number LT8640EUDC#TRPBF LT8641EUDC#TRPBF LT8640IUDC#TRPBF LT8640HUDC#TRPBF LT8640EUDCF#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Active Active
Function Step-Down Step-Down Step-Down Step-Down Step-Down
Output Configuration Positive Positive Positive Positive Positive
Topology Buck Buck Buck Buck Buck
Output Type Adjustable Adjustable Adjustable Adjustable Adjustable
Number of Outputs 1 1 1 1 1
Voltage - Input (Min) 3.4V 3V 3.4V 3.4V 3.4V
Voltage - Input (Max) 42V 65V 42V 42V 42V
Voltage - Output (Min/Fixed) 0.97V 0.8V 0.97V 0.97V 0.97V
Voltage - Output (Max) 42V 64.35V 42V 42V 42V
Current - Output 5A 3.5A 5A 5A 5A
Frequency - Switching 210kHz ~ 2MHz 210kHz ~ 2MHz 210kHz ~ 2MHz 210kHz ~ 2MHz 210kHz ~ 2MHz
Synchronous Rectifier Yes Yes Yes Yes Yes
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount, Wettable Flank
Package / Case 20-WFQFN, 18 Leads, Exposed Pad 20-WFQFN, 18 Leads, Exposed Pad 20-WFQFN, 18 Leads, Exposed Pad 20-WFQFN, 18 Leads, Exposed Pad 20-WFQFN, 18 Leads, Exposed Pad
Supplier Device Package 20-QFN (3x4) 20-QFN (3x4) 20-QFN (3x4) 20-QFN (3x4) 20-QFN (3x4)

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