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LTC3876EFE
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management
Characteristics: - High Efficiency - Wide Input Voltage Range - Programmable Output Voltage - Synchronous Buck Converter
Package: 28-Lead TSSOP
Essence: The LTC3876EFE is a high-performance synchronous buck converter IC designed for power management applications.
Packaging/Quantity: The LTC3876EFE is available in a 28-Lead Thin Shrink Small Outline Package (TSSOP). The quantity per package may vary depending on the supplier.
Specifications
The LTC3876EFE has the following specifications:
- Input Voltage Range: 4.5V to 38V
- Output Voltage Range: 0.8V to VIN
- Maximum Output Current: Up to 20A
- Switching Frequency: Up to 1MHz
- Efficiency: Up to 95%
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
The LTC3876EFE has a 28-pin configuration with the following pin functions:
- VIN: Input Voltage
- GND: Ground
- VCC: Control Supply Voltage
- SS: Soft-Start
- FB: Feedback Voltage
- SYNC/MODE: Synchronization/MODE Selection
- PGND: Power Ground
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
- SW: Switch Node
Functional Features
The LTC3876EFE offers the following functional features:
- High Efficiency Power Conversion
- Wide Input Voltage Range for Versatile Applications
- Programmable Output Voltage for Flexibility
- Synchronous Buck Converter Architecture for Improved Performance
Advantages and Disadvantages
Advantages: - High efficiency leads to reduced power loss - Wide input voltage range allows for compatibility with various power sources - Programmable output voltage provides flexibility in system design - Synchronous buck converter architecture improves overall performance
Disadvantages: - Limited maximum output current of 20A may not be suitable for high-power applications - Higher switching frequency may require additional considerations for noise management
Working Principles
The LTC3876EFE operates as a synchronous buck converter, converting a higher input voltage to a lower output voltage efficiently. It utilizes a control circuitry to regulate the output voltage based on the feedback received from the FB pin. The switching action of the internal MOSFETs enables efficient power conversion.
Detailed Application Field Plans
The LTC3876EFE can be applied in various power management scenarios, including but not limited to: - DC-DC Converters - Industrial Power Supplies - Automotive Electronics - Telecommunications Equipment - Distributed Power Systems
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the LTC3876EFE include: - LT8614S: Synchronous Step-Down Regulator - LT8609S: Synchronous Step-Down Regulator - LT8645S: Synchronous Step-Down Regulator - LT8646S: Synchronous Step-Down Regulator - LT8607S: Synchronous Step-Down Regulator
These alternative models can be considered based on specific application requirements and design constraints.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LTC3876EFE en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of LTC3876EFE in technical solutions:
Q: What is LTC3876EFE? A: LTC3876EFE is a high-performance synchronous buck-boost DC/DC controller IC manufactured by Linear Technology (now part of Analog Devices). It is designed for various power supply applications.
Q: What is the input voltage range supported by LTC3876EFE? A: The input voltage range supported by LTC3876EFE is typically between 4V and 38V.
Q: What is the output voltage range that can be achieved using LTC3876EFE? A: LTC3876EFE can achieve an output voltage range from 0.8V to 60V, making it suitable for a wide range of applications.
Q: What is the maximum output current that LTC3876EFE can handle? A: LTC3876EFE can handle a maximum output current of up to 20A, depending on the specific application and thermal considerations.
Q: Can LTC3876EFE operate in both buck and boost modes? A: Yes, LTC3876EFE is a versatile controller that can operate in both buck and boost modes, allowing for flexible power conversion designs.
Q: Does LTC3876EFE support synchronous rectification? A: Yes, LTC3876EFE supports synchronous rectification, which improves efficiency and reduces power losses in the system.
Q: What type of control loop does LTC3876EFE use? A: LTC3876EFE utilizes a voltage-mode control loop, which provides stable regulation and good transient response.
Q: Can LTC3876EFE be synchronized to an external clock? A: Yes, LTC3876EFE can be synchronized to an external clock signal, allowing for synchronization with other power supply components.
Q: Does LTC3876EFE have built-in protection features? A: Yes, LTC3876EFE incorporates various protection features such as overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown.
Q: What are some typical applications of LTC3876EFE? A: LTC3876EFE is commonly used in applications such as battery-powered systems, automotive electronics, industrial equipment, telecommunications, and more, where efficient power conversion is required.
Please note that the answers provided here are general and may vary depending on specific design requirements and application considerations. It is always recommended to refer to the LTC3876EFE datasheet and consult with technical experts for detailed information and guidance.