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LTC3807HFE#PBF
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LTC3807HFE#PBF

Product Overview

Category

The LTC3807HFE#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various electronic devices and systems to efficiently regulate and control power supply voltages.

Characteristics

  • High efficiency: The LTC3807HFE#PBF offers excellent power conversion efficiency, minimizing energy losses during voltage regulation.
  • Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse power supply applications.
  • Compact package: The LTC3807HFE#PBF is available in a small form factor package, enabling space-saving designs.
  • Low quiescent current: This IC has a low quiescent current, ensuring minimal power consumption during standby or idle modes.

Package and Quantity

The LTC3807HFE#PBF is packaged in a compact and robust 20-pin TSSOP (Thin Shrink Small Outline Package). It is typically sold in reels containing a specified quantity of ICs.

Specifications

  • Input Voltage Range: 4.5V to 36V
  • Output Voltage Range: Adjustable from 0.8V to 34V
  • Maximum Output Current: 2A
  • Switching Frequency: Up to 1MHz
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3807HFE#PBF features 20 pins, each serving a specific function. Here is a detailed pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground reference pin
  3. FB: Feedback pin for output voltage regulation
  4. SS: Soft-start capacitor connection pin
  5. SYNC: Synchronization input pin for external clock synchronization
  6. VCC: Supply voltage pin for internal control circuitry
  7. PGND: Power ground reference pin
  8. VCCSENSE: Supply voltage sense pin
  9. ITH: Current limit setting pin
  10. RT/CLKOUT: External resistor connection for frequency synchronization or clock output
  11. CLKIN: Clock input pin for internal oscillator synchronization
  12. SW: Switching node pin
  13. SW: Switching node pin
  14. SW: Switching node pin
  15. SW: Switching node pin
  16. SW: Switching node pin
  17. SW: Switching node pin
  18. SW: Switching node pin
  19. SW: Switching node pin
  20. SW: Switching node pin

Functional Features

  • Voltage Regulation: The LTC3807HFE#PBF provides precise and stable output voltage regulation, ensuring reliable power supply to connected devices.
  • Current Limiting: It incorporates a current limit feature that protects the IC and the load from excessive current flow, enhancing system safety.
  • Soft-Start: The soft-start function gradually ramps up the output voltage during startup, preventing voltage overshoot and reducing stress on components.
  • Synchronization: The LTC3807HFE#PBF can be synchronized with an external clock signal, allowing precise timing control in multi-device applications.

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power consumption and improved energy efficiency.
  • Wide input voltage range enables compatibility with various power sources.
  • Compact package facilitates space-saving designs.
  • Low quiescent current minimizes standby power consumption.

Disadvantages

  • Limited maximum output current of 2A may not be suitable for high-power applications.
  • Requires additional external components for operation, increasing system complexity.

Working Principles

The LTC3807HFE#PBF operates based on a pulse width modulation (PWM) control scheme. It regulates the output voltage by adjusting the duty cycle of the internal power switch. This duty cycle modulation is achieved through feedback control, comparing the actual output voltage with a reference voltage. The IC continuously monitors and adjusts the duty cycle to maintain the desired output voltage within specified limits.

Detailed Application Field Plans

The LTC3807HFE#PBF finds applications in various fields, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - Telecommunications systems - Consumer electronics - Renewable energy systems

Detailed and Complete Alternative Models

  1. LTC3807IFE#PBF: Similar to LTC3807HFE#PBF, but available in an 16-pin TSSOP package.
  2. LTC3807MPFE#PBF: A higher power version of LTC3807HFE#PBF, capable of delivering up to 5A output current.
  3. LTC3807EMSE#PBF: A miniature surface-mount package variant of LTC3807HFE#PBF, suitable for space-constrained designs.

These alternative models offer similar functionality and features, catering to different

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC3807HFE#PBF i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LTC3807HFE#PBF in technical solutions:

  1. Q: What is LTC3807HFE#PBF? A: LTC3807HFE#PBF is a high-performance synchronous step-down DC/DC controller IC manufactured by Linear Technology (now part of Analog Devices). It is used for regulating voltage in various technical applications.

  2. Q: What is the input voltage range supported by LTC3807HFE#PBF? A: The input voltage range supported by LTC3807HFE#PBF is typically between 4.5V and 38V.

  3. Q: What is the output voltage range that can be achieved using LTC3807HFE#PBF? A: The output voltage range achievable with LTC3807HFE#PBF depends on the external components used, but it can generally be set between 0.6V and VIN.

  4. Q: What is the maximum output current that LTC3807HFE#PBF can handle? A: LTC3807HFE#PBF can handle a maximum output current of up to 20A, depending on the design and thermal considerations.

  5. Q: Does LTC3807HFE#PBF support synchronous rectification? A: Yes, LTC3807HFE#PBF supports synchronous rectification, which improves efficiency by reducing power losses.

  6. Q: Can LTC3807HFE#PBF operate in a wide temperature range? A: Yes, LTC3807HFE#PBF is designed to operate in a wide temperature range, typically from -40°C to 125°C.

  7. Q: What type of control loop does LTC3807HFE#PBF use? A: LTC3807HFE#PBF uses a voltage mode control loop, which provides good transient response and stability.

  8. Q: Does LTC3807HFE#PBF have any protection features? A: Yes, LTC3807HFE#PBF includes various protection features such as overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown.

  9. Q: Can LTC3807HFE#PBF be used in battery-powered applications? A: Yes, LTC3807HFE#PBF can be used in battery-powered applications as long as the input voltage range is within the supported limits.

  10. Q: Are there any evaluation boards or reference designs available for LTC3807HFE#PBF? A: Yes, Analog Devices provides evaluation boards and reference designs for LTC3807HFE#PBF, which can help users quickly prototype and implement their technical solutions.

Please note that the answers provided here are general and may vary depending on specific design considerations and requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.