LT8641IUDC#TRPBF
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Analog Devices Inc. LT8641IUDC#TRPBF

Manufacturer No:
LT8641IUDC#TRPBF
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC REG BUCK ADJ 3.5A 20QFN
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The LT8641IUDC#TRPBF is a high-performance synchronous step-down switching regulator from Analog Devices Inc. This device is part of the Silent Switcher architecture, designed to minimize EMI emissions while delivering high efficiency across a wide range of frequencies. It is particularly suited for applications requiring low noise and high reliability.

Key Specifications

Parameter Minimum Typical Maximum Units
Input Voltage (VIN) 3.0 65 V
Output Voltage Range 0.782 64 V
Maximum Output Current 3.5 A
Switching Frequency Range 200 kHz 3 MHz
Quiescent Current (VEN/UV = 0V) 0.75 0.75 3 µA
Operating Junction Temperature Range -40 125 °C
Package Type 18-Lead QFN

Key Features

  • Silent Switcher Architecture: Designed to minimize EMI emissions, ensuring high efficiency and low noise operation.
  • High Efficiency: Achieves high efficiency across a wide range of frequencies.
  • Adjustable Output Voltage: Output voltage can be adjusted from 0.782V to 64V.
  • Low Quiescent Current: Quiescent current as low as 0.75µA when VEN/UV = 0V.
  • Multiple Operating Modes: Supports Burst Mode, pulse-skipping mode, and other modes via the SYNC/MODE pin.
  • Overtemperature Protection: Includes overtemperature protection to safeguard the device during overload conditions.
  • Tracking Function: The TR/SS pin allows for tracking the output voltage to an external voltage source.

Applications

The LT8641IUDC#TRPBF is ideal for various power management applications, including:

  • Industrial power supplies
  • Automotive systems (with appropriate temperature and reliability specifications)
  • Telecommunications equipment
  • High-reliability medical devices
  • Any application requiring high efficiency, low noise, and adjustable output voltage.

Q & A

  1. What is the input voltage range of the LT8641IUDC#TRPBF?

    The input voltage range is from 3V to 65V.

  2. What is the maximum output current of the LT8641IUDC#TRPBF?

    The maximum output current is 3.5A.

  3. What are the operating modes supported by the LT8641IUDC#TRPBF?

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

  4. How does the TR/SS pin function in the LT8641IUDC#TRPBF?

    The TR/SS pin allows for tracking the output voltage to an external voltage source and also programs the output voltage slew rate.

  5. What is the quiescent current of the LT8641IUDC#TRPBF when VEN/UV = 0V?

    The quiescent current is 0.75µA when VEN/UV = 0V.

  6. Does the LT8641IUDC#TRPBF have overtemperature protection?

    Yes, it includes overtemperature protection to safeguard the device during overload conditions.

  7. What is the package type of the LT8641IUDC#TRPBF?

    The device is packaged in an 18-Lead QFN.

  8. What is the operating junction temperature range of the LT8641IUDC#TRPBF?

    The operating junction temperature range is from -40°C to 125°C.

  9. Is the LT8641IUDC#TRPBF suitable for automotive applications?

    Yes, versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications.

  10. What is the switching frequency range of the LT8641IUDC#TRPBF?

    The switching frequency range is from 200 kHz to 3 MHz.

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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LT8641IUDC#TRPBF
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LT8641HUDC#TRPBF
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Similar Products

Part Number LT8641IUDC#TRPBF LT8640IUDC#TRPBF LT8641EUDC#TRPBF LT8641HUDC#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 3.4V 3V 3V
Voltage - Input (Max) 65V 42V 65V 65V
Voltage - Output (Min/Fixed) 0.8V 0.97V 0.8V 0.8V
Voltage - Output (Max) 64.35V 42V 64.35V 64.35V
Current - Output 3.5A 5A 3.5A 3.5A
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 ~ 125°C (TJ) -40°C ~ 150°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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