LT8641EUDC#TRPBF
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Analog Devices Inc. LT8641EUDC#TRPBF

Manufacturer No:
LT8641EUDC#TRPBF
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC REG BUCK ADJ 3.5A 20QFN
Delivery:
Payment:
iso14001
iso45001
iso9001
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Product Introduction

Overview

The LT8641EUDC#TRPBF is a high-performance, synchronous step-down regulator produced by Analog Devices Inc. This regulator features the Silent Switcher architecture, which is designed to minimize EMI/EMC emissions while delivering high efficiency at various frequencies. It is particularly suited for applications requiring low noise and high reliability.

Key Specifications

Parameter Minimum Typical Maximum Units
Input Voltage (VIN) 2.6 3.0 65 V
Output Current 3.5 A
Quiescent Current (VEN/UV = 0V) 0.75 0.75 3 µA
Quiescent Current (VEN/UV = 2V, Not Switching) 22 µA
Operating Junction Temperature Range –40 125 °C
Storage Temperature Range –65 150 °C
TR/SS Source Current 1.2 1.9 2.6 µA
TR/SS Pull-Down Resistance (Fault Condition) 220 Ω

Key Features

  • Silent Switcher Architecture: Minimizes EMI/EMC emissions, ensuring high efficiency and low noise operation.
  • High Efficiency: Delivers high efficiency at frequencies up to several MHz.
  • Low Quiescent Current: As low as 2.5µA in Burst Mode, making it suitable for battery-powered applications.
  • Adjustable Output Voltage: Output voltage can be adjusted from 800mV to 64.35V.
  • Multiple Operating Modes: Supports Burst Mode, pulse-skipping mode, and other modes configurable via the SYNC/MODE pin.
  • Overtemperature Protection: Protects the device during overload conditions by limiting junction temperature.
  • Compact Package: Available in a 20-lead (3mm × 4mm) Plastic QFN package.

Applications

  • Automotive Systems: Suitable for automotive applications due to its high reliability and temperature range.
  • Industrial Power Supplies: Ideal for high-efficiency power supplies in industrial settings.
  • Battery-Powered Devices: Low quiescent current makes it suitable for battery-powered devices.
  • Communication Equipment: Used in communication equipment requiring low noise and high efficiency.
  • Medical Devices: Can be used in medical devices where high reliability and low EMI are critical.

Q & A

  1. What is the input voltage range of the LT8641EUDC#TRPBF?

    The input voltage range is from 2.6V to 65V.

  2. What is the maximum output current of the LT8641EUDC#TRPBF?

    The maximum output current is 3.5A.

  3. What is the quiescent current in Burst Mode?

    The quiescent current in Burst Mode is as low as 2.5µA.

  4. What are the different operating modes supported by the LT8641EUDC#TRPBF?

    The regulator supports Burst Mode, pulse-skipping mode, and other modes configurable via the SYNC/MODE pin.

  5. Does the LT8641EUDC#TRPBF have overtemperature protection?
  6. What is the package type and size of the LT8641EUDC#TRPBF?
  7. Is the LT8641EUDC#TRPBF suitable for automotive applications?
  8. What is the storage temperature range of the LT8641EUDC#TRPBF?
  9. How can the output voltage be adjusted on the LT8641EUDC#TRPBF?
  10. What is the purpose of the TR/SS pin on the LT8641EUDC#TRPBF?

Product Attributes

Function:Step-Down
Output Configuration:Positive
Topology:Buck
Output Type:Adjustable
Number of Outputs:1
Voltage - Input (Min):3V
Voltage - Input (Max):65V
Voltage - Output (Min/Fixed):0.8V
Voltage - Output (Max):64.35V
Current - Output:3.5A
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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Same Series
LT8641IUDC#TRPBF
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IC REG BUCK ADJ 3.5A 20QFN
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Similar Products

Part Number LT8641EUDC#TRPBF LT8641IUDC#TRPBF LT8641HUDC#TRPBF LT8640EUDC#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Active
Function Step-Down Step-Down Step-Down Step-Down
Output Configuration Positive Positive Positive Positive
Topology Buck Buck Buck Buck
Output Type Adjustable Adjustable Adjustable Adjustable
Number of Outputs 1 1 1 1
Voltage - Input (Min) 3V 3V 3V 3.4V
Voltage - Input (Max) 65V 65V 65V 42V
Voltage - Output (Min/Fixed) 0.8V 0.8V 0.8V 0.97V
Voltage - Output (Max) 64.35V 64.35V 64.35V 42V
Current - Output 3.5A 3.5A 3.5A 5A
Frequency - Switching 210kHz ~ 2MHz 210kHz ~ 2MHz 210kHz ~ 2MHz 210kHz ~ 2MHz
Synchronous Rectifier Yes Yes Yes Yes
Operating Temperature -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
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
Supplier Device Package 20-QFN (3x4) 20-QFN (3x4) 20-QFN (3x4) 20-QFN (3x4)

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