LTC3876EFE#PBF
Product Overview
Category
The LTC3876EFE#PBF belongs to the category of power management integrated circuits (PMICs).
Use
It is primarily used for voltage regulation and power conversion in various electronic devices.
Characteristics
- High efficiency
- Wide input voltage range
- Adjustable output voltage
- Current limit protection
- Thermal shutdown protection
Package
LTC3876EFE#PBF is available in a 28-pin plastic TSSOP package.
Essence
This PMIC integrates multiple functions, including voltage regulation, current limiting, and thermal protection, into a single chip.
Packaging/Quantity
The LTC3876EFE#PBF is typically packaged in reels and comes in quantities of 250 units per reel.
Specifications
- Input Voltage Range: 4.5V to 38V
- Output Voltage Range: 0.8V to 24V
- Maximum Output Current: 20A
- Switching Frequency: 200kHz to 2MHz
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground pin
- VOUT: Output voltage pin
- FB: Feedback pin for output voltage regulation
- EN: Enable pin for turning on/off the device
- SS: Soft-start pin for controlling the startup time
- PG: Power good indicator pin
- SYNC: Synchronization pin for external clock input
- BST: Boost pin for driving the high-side MOSFET
- SW: Switch node pin for connecting the inductor
Functional Features
- Wide input voltage range allows for versatile applications
- Adjustable output voltage provides flexibility in system design
- High efficiency ensures minimal power loss
- Current limit protection prevents damage to the device and load
- Thermal shutdown protection safeguards against overheating
Advantages and Disadvantages
Advantages
- Integrated multiple functions in a single chip, reducing component count and board space
- Wide input voltage range allows for compatibility with various power sources
- High efficiency results in energy savings and reduced heat dissipation
- Robust current limit and thermal shutdown protection enhance system reliability
Disadvantages
- Limited maximum output current may not be suitable for high-power applications
- Higher cost compared to discrete components for simple power conversion needs
Working Principles
The LTC3876EFE#PBF operates as a synchronous step-down DC-DC converter. It regulates the output voltage by adjusting the duty cycle of the internal switches based on the feedback signal. The integrated control circuitry ensures stable and efficient power conversion.
Detailed Application Field Plans
The LTC3876EFE#PBF is widely used in various applications, including: - Industrial equipment - Telecommunications systems - Automotive electronics - Power supplies - Battery-powered devices
Detailed and Complete Alternative Models
- LTC3875EFE#PBF: Similar to LTC3876EFE#PBF but with a higher maximum output current of 30A.
- LTC3874EFE#PBF: Lower-cost alternative with a lower maximum output current of 15A.
- LTC3873EFE#PBF: Compact version with a smaller package size but similar specifications.
These alternative models provide options based on specific application requirements and cost considerations.
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技術ソリューションにおける LTC3876EFE#PBF の適用に関連する 10 件の一般的な質問と回答をリストします。
Sure! Here are 10 common questions and answers related to the application of LTC3876EFE#PBF in technical solutions:
Q: What is LTC3876EFE#PBF? A: LTC3876EFE#PBF is a high-performance synchronous buck-boost DC/DC controller IC manufactured by Linear Technology (now part of Analog Devices). It is used for power management applications.
Q: What is the input voltage range supported by LTC3876EFE#PBF? A: The input voltage range supported by LTC3876EFE#PBF is from 2.25V to 40V.
Q: What is the output voltage range that can be achieved using LTC3876EFE#PBF? A: LTC3876EFE#PBF can achieve an output voltage range from 0.8V to 60V.
Q: What is the maximum output current that LTC3876EFE#PBF can handle? A: LTC3876EFE#PBF can handle a maximum output current of up to 20A.
Q: Does LTC3876EFE#PBF support both step-up (boost) and step-down (buck) operation? A: Yes, LTC3876EFE#PBF supports both step-up and step-down operation, making it suitable for buck-boost applications.
Q: What is the switching frequency range of LTC3876EFE#PBF? A: The switching frequency range of LTC3876EFE#PBF is adjustable from 100kHz to 900kHz.
Q: Can LTC3876EFE#PBF operate in a synchronous rectification mode? A: Yes, LTC3876EFE#PBF supports synchronous rectification, which improves efficiency and reduces power losses.
Q: Does LTC3876EFE#PBF have built-in protection features? A: Yes, LTC3876EFE#PBF includes various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.
Q: What is the typical efficiency of LTC3876EFE#PBF? A: The typical efficiency of LTC3876EFE#PBF can reach up to 95%, depending on the operating conditions.
Q: Are there any evaluation boards or reference designs available for LTC3876EFE#PBF? A: Yes, Analog Devices provides evaluation boards and reference designs for LTC3876EFE#PBF, which can help in the development and testing of applications using this IC.
Please note that the answers provided here are general and may vary depending on specific application requirements and design considerations. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.