Linear Technology/Analog Devices
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LTC3895HFE

LTC3895HFE

Product Overview

Category

LTC3895HFE belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

  • High efficiency
  • Wide input voltage range
  • Adjustable output voltage
  • Low quiescent current
  • Overcurrent protection
  • Thermal shutdown protection

Package

LTC3895HFE is available in a compact and durable package, suitable for various electronic devices.

Essence

The essence of LTC3895HFE lies in its ability to efficiently regulate power supply voltages, ensuring stable and reliable operation of electronic systems.

Packaging/Quantity

LTC3895HFE is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 4.5V - 60V
  • Output Voltage Range: 0.8V - 24V
  • Maximum Output Current: 3A
  • Quiescent Current: 50µA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. FB: Feedback pin
  4. EN: Enable pin
  5. VOUT: Output voltage pin
  6. SW: Switching node pin

Functional Features

  • Wide input voltage range allows compatibility with various power sources.
  • Adjustable output voltage enables flexibility in system design.
  • Low quiescent current minimizes power consumption during standby mode.
  • Overcurrent protection safeguards against excessive current flow.
  • Thermal shutdown protection prevents overheating and damage to the device.

Advantages and Disadvantages

Advantages

  • High efficiency results in reduced power loss.
  • Wide input voltage range provides versatility in different applications.
  • Compact package size allows for space-saving designs.
  • Overcurrent and thermal shutdown protection enhance system reliability.

Disadvantages

  • Limited maximum output current may not be suitable for high-power applications.
  • Higher cost compared to some alternative models.

Working Principles

LTC3895HFE operates as a step-down (buck) switching regulator. It converts the higher input voltage to a lower, regulated output voltage using pulse-width modulation (PWM) techniques. The feedback mechanism ensures that the output voltage remains stable within the desired range.

Detailed Application Field Plans

LTC3895HFE finds applications in various fields, including but not limited to: - Automotive electronics - Industrial automation - Telecommunications - Renewable energy systems - Consumer electronics

Detailed and Complete Alternative Models

  1. LTC3895IFE: Similar specifications and features, different package type (TSSOP)
  2. LTC3895HMPFE: Higher maximum output current (5A), similar specifications and features
  3. LTC3895EUFD: Lower quiescent current (25µA), similar specifications and features

These alternative models provide options based on specific requirements and preferences.

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Énumérez 10 questions et réponses courantes liées à l'application de LTC3895HFE dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of LTC3895HFE in technical solutions:

  1. Q: What is LTC3895HFE? A: LTC3895HFE is a high-performance synchronous buck-boost DC/DC controller IC.

  2. Q: What is the input voltage range supported by LTC3895HFE? A: LTC3895HFE supports an input voltage range from 4V to 60V.

  3. Q: What is the output voltage range supported by LTC3895HFE? A: LTC3895HFE supports an output voltage range from 0.8V to 60V.

  4. Q: What is the maximum output current that LTC3895HFE can handle? A: LTC3895HFE can handle a maximum output current of up to 20A.

  5. Q: Does LTC3895HFE support both step-up (boost) and step-down (buck) operation? A: Yes, LTC3895HFE supports both step-up and step-down operation, making it suitable for buck-boost applications.

  6. Q: What is the switching frequency range of LTC3895HFE? A: The switching frequency range of LTC3895HFE is adjustable from 100kHz to 750kHz.

  7. Q: Can LTC3895HFE operate in a wide temperature range? A: Yes, LTC3895HFE is designed to operate in a wide temperature range from -40°C to 125°C.

  8. Q: Does LTC3895HFE have built-in protection features? A: Yes, LTC3895HFE includes various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.

  9. Q: What type of control loop does LTC3895HFE use? A: LTC3895HFE uses a voltage mode control loop.

  10. Q: Can LTC3895HFE be used in automotive applications? A: Yes, LTC3895HFE is suitable for automotive applications as it meets the necessary requirements such as AEC-Q100 Grade 1 qualification.

Please note that these answers are general and may vary depending on the specific application and implementation. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.