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LT3474IFE-1#PBF
Product Overview
Category
The LT3474IFE-1#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 regulate and control power supply voltages efficiently.
Characteristics
- High efficiency voltage regulation
- Wide input voltage range
- Adjustable output voltage
- Low quiescent current
- Compact package size
Package
The LT3474IFE-1#PBF is available in a small form factor, 16-pin TSSOP (Thin Shrink Small Outline Package).
Essence
The essence of LT3474IFE-1#PBF lies in its ability to provide efficient and reliable power management solutions for a wide range of applications.
Packaging/Quantity
The IC is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.
Specifications
- Input Voltage Range: 2.5V to 36V
- Output Voltage Range: 0.8V to VIN
- Maximum Output Current: 3A
- Switching Frequency: 500kHz
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
The LT3474IFE-1#PBF features a 16-pin TSSOP package with the following pin configuration:
- VIN: Input voltage
- GND: Ground reference
- SW: Switch node connection
- FB: Feedback voltage input
- VCC: Supply voltage for internal circuitry
- SS: Soft-start capacitor connection
- PGND: Power ground reference
- SYNC: External synchronization input
- RT: Oscillator timing resistor
- CT: Oscillator timing capacitor
- EN: Enable pin
- VOUT: Output voltage
- COMP: Compensation pin
- SS/TRK: Soft-start/tracking capacitor connection
- BST: Bootstrap capacitor connection
- PGND: Power ground reference
Functional Features
- High-efficiency step-down (buck) converter
- Adjustable output voltage through external resistors
- Integrated power switches for compact design
- Soft-start and tracking capabilities
- Synchronization with an external clock source
- Overcurrent and thermal protection
Advantages and Disadvantages
Advantages
- High efficiency leads to reduced power dissipation
- Wide input voltage range allows for versatile applications
- Compact package size enables space-saving designs
- Adjustable output voltage provides flexibility
- Comprehensive protection features enhance reliability
Disadvantages
- Limited maximum output current may restrict certain high-power applications
- External components required for proper operation
- Synchronization feature may not be necessary in all applications
Working Principles
The LT3474IFE-1#PBF operates as a step-down (buck) converter, converting a higher input voltage to a lower output voltage efficiently. It utilizes integrated power switches, control circuitry, and feedback mechanisms to regulate the output voltage accurately. The IC employs pulse-width modulation (PWM) techniques to control the duty cycle of the switching waveform, achieving the desired output voltage.
Detailed Application Field Plans
The LT3474IFE-1#PBF finds extensive application in various fields, including but not limited to: - Portable electronic devices - Automotive systems - Industrial equipment - Telecommunications - LED lighting
Detailed and Complete Alternative Models
- LT3474EFE-1#PBF
- LT3474HFE-1#PBF
- LT3474IFE#PBF
- LT3474EFE#PBF
- LT3474HFE#PBF
These alternative models offer similar functionality and characteristics, providing options for different design requirements.
In conclusion, the LT3474IFE-1#PBF is a versatile integrated circuit designed for efficient power management applications. Its compact size, adjustable output voltage, and comprehensive protection features make it suitable for various electronic devices and systems. While it has some limitations, its advantages outweigh the disadvantages, making it a popular choice in the industry.
Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LT3474IFE-1#PBF v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LT3474IFE-1#PBF in technical solutions:
Q1: What is the LT3474IFE-1#PBF? A1: The LT3474IFE-1#PBF is a high-efficiency, monolithic synchronous buck regulator designed for applications requiring high output current.
Q2: What is the input voltage range of the LT3474IFE-1#PBF? A2: The input voltage range of the LT3474IFE-1#PBF is typically between 3V and 36V.
Q3: What is the maximum output current of the LT3474IFE-1#PBF? A3: The LT3474IFE-1#PBF can deliver a maximum output current of 2.5A.
Q4: What is the switching frequency of the LT3474IFE-1#PBF? A4: The switching frequency of the LT3474IFE-1#PBF is typically set at 1MHz, but it can be adjusted using an external resistor.
Q5: Can the LT3474IFE-1#PBF operate in a wide temperature range? A5: Yes, the LT3474IFE-1#PBF is designed to operate in a temperature range from -40°C to 125°C.
Q6: Does the LT3474IFE-1#PBF have built-in protection features? A6: Yes, the LT3474IFE-1#PBF includes features like overvoltage protection, overcurrent protection, and thermal shutdown.
Q7: Can the LT3474IFE-1#PBF be used in battery-powered applications? A7: Yes, the LT3474IFE-1#PBF is suitable for battery-powered applications as it has a low quiescent current and can operate with input voltages as low as 3V.
Q8: What type of package does the LT3474IFE-1#PBF come in? A8: The LT3474IFE-1#PBF is available in an exposed pad TSSOP-16 package.
Q9: Can the LT3474IFE-1#PBF be used in automotive applications? A9: Yes, the LT3474IFE-1#PBF is AEC-Q100 qualified, making it suitable for automotive applications.
Q10: Are there any evaluation boards or reference designs available for the LT3474IFE-1#PBF? A10: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs to help users quickly implement the LT3474IFE-1#PBF in their applications.
Please note that the answers provided here are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.