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LT3479EFE#PBF
Switching Voltage Regulators 3A, Full Featured DC/DC Conv w/ Soft-StaLT3479EFE#PBF
Switching Voltage Regulators 3A, Full Featured DC/DC Conv w/ Soft-Sta
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Manufacturer Part # : LT3479EFE#PBF
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Package/Case: TSSOP-16
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Brand: Analog Devices
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Product Categories : Voltage Regulators , DC DC Switching Regulators
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Series : LT3479
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RoHS:
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.
Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
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Shipping & Payment
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
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Maintain the goods in their original condition as received.
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LT3479EFE#PBF DataSheet
Pricing (USD)
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1 | $3.301 | $3.30 |
| 10 | $2.891 | $28.91 |
| 30 | $2.648 | $79.44 |
| 100 | $2.401 | $240.10 |
| 500 | $2.287 | $1,143.50 |
| 1000 | $2.236 | $2,236.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
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LT3479EFE#PBF Details
The LT3479EFE#PBF is a high efficiency, fixed frequency, current mode step-up DC-DC converter from Analog Devices. This converter is designed for powering a wide range of applications, providing a compact and efficient power solution. It features a wide input voltage range and offers adjustable output voltage, making it versatile for various power supply designs.
Pinout
- 1 (SW): Switch Node
- 2 (GND): Ground
- 3 (FB): Feedback
- 4 (VOUT): Output Voltage
- 5 (VIN): Input Voltage
(Tip: For detailed pinout information, please refer to the corresponding datasheet.)
Key Features
- High Efficiency: Provides high efficiency conversion for reduced power loss.
- Wide Input Voltage Range: Supports a broad input voltage range for flexibility in power supply design.
- Adjustable Output Voltage: Allows for flexibility in setting the output voltage as per application requirements.
- Compact Size: Compact form factor ideal for space-constrained applications.
- Current Mode Control: Utilizes current mode control for improved transient response and stability.
Application
- Battery-Powered Devices: Suitable for powering battery-operated devices requiring efficient voltage conversion.
- Portable Electronics: Ideal for portable electronic devices that need compact and efficient power solutions.
- LED Drivers: Used in LED driver applications for controlling LED brightness with adjustable voltage output.
Where to Use
The LT3479EFE#PBF is ideal for applications requiring high efficiency and adjustable output voltage conversion. It is commonly used in battery-powered devices, portable electronics, and LED driver circuits to provide efficient power solutions.
How to Use
Connect the LT3479EFE#PBF to your circuit by wiring the SW, GND, FB, VOUT, and VIN pins according to the application requirements. Adjust the feedback node for the desired output voltage. Ensure proper input and output voltage levels for optimal performance. Refer to the datasheet for detailed usage instructions.
Application Circuit
The application circuit diagram for the LT3479EFE#PBF demonstrates how to connect the DC-DC converter in your power supply design. It includes connections for input voltage, output voltage, and feedback, ensuring stable and efficient power conversion.
(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)
Equivalents
- LTC1871: Analog Devices converter offering similar features and performance.
- MAX1675: Maxim Integrated step-up converter with comparable specifications.
Complementary
The LT3479EFE#PBF can be complemented by the LT3579EFE#PBF, offering multiple outputs and higher current capability for more complex power supply requirements.
When selecting complementary converters, ensure compatibility and alignment with your power supply needs for optimal performance.
Frequently Asked Questions
Q: What is the efficiency rating of the LT3479EFE#PBF?
A: The LT3479EFE#PBF offers high efficiency conversion, typically above 90%. Refer to the datasheet for efficiency curves and performance graphs.
Q: Can the output voltage of the LT3479EFE#PBF be adjusted?
A: Yes, the output voltage of the LT3479EFE#PBF is adjustable via the feedback pin, allowing customization based on application requirements.
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Product Category ! | Switching Voltage Regulators | RoHS | Details |
| Output Voltage | 42 V | Output Current ! | 3 A |
| Input Voltage, Max | 24 V | Number of Outputs | 1 Output |
| Topology | Boost | Package / Case | TSSOP-16 |
| Mounting Style | SMD/SMT | Switching Frequency ! | 200 kHz to 3.5 MHz |
| Quiescent Current ! | 5 mA | Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature ! | + 85 C | Series | LT3479 |
| Input Voltage, Min | 2.3 V | Brand | Analog Devices |
| Input Voltage | 2.5 V to 24 V | Operating Supply Current | 5 mA |
| Product Type ! | Switching Voltage Regulators | Shutdown | Shutdown |
| Factory Pack Quantity | 95 | Subcategory | PMIC - Power Management ICs |
| Supply Voltage - Min | 2.5 V | Type | DC/DC Converter |
| Unit Weight | 0.014145 oz |
FAQs
What is LT3479EFE#PBF?
The LT3479EFE#PBF is a high efficiency monolithic power factor correction (PFC) controller designed by Linear Technology, now part of Analog Devices. It is specifically tailored for boost PFC applications in power supplies and LED drivers, offering improved power factor and efficiency.
How Does LT3479EFE#PBF Work?
The LT3479EFE#PBF works by regulating the power factor correction stage in boost converters. It adjusts the input current waveform to closely follow the input voltage waveform, resulting in a near-unity power factor. This improves the efficiency of the power supply and reduces harmonic distortion in the AC line current.
How Many Pins does LT3479EFE#PBF have and What are the Functions of the Pinout Configuration?
The LT3479EFE#PBF is housed in a 28-lead TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:
- VIN: Input voltage pin.
- GD: Gate driver output pin.
- VCC: Power supply pin for the IC.
- OVP: Over-voltage protection pin.
- FB: Feedback pin for regulation control.
- COM: Common pin for the control circuitry.
- COMP: Compensation pin for loop stabilization.
- RT: External resistor connection for setting the oscillator frequency.
What are the Pros and Cons of LT3479EFE#PBF?
Pros:
- High Efficiency: Improves power factor correction and efficiency in boost converters.
- Compact Design: Housed in a space-saving TSSOP package for compact circuit layouts.
- Over-Voltage Protection: Includes OVP feature for enhanced system protection.
- Programmable Frequency: Provides flexibility with external resistor connection for setting the oscillator frequency.
- Wide Input Voltage Range: Suitable for various input voltage requirements in power supply applications.
Cons:
- Complexity: Requires understanding of power factor correction principles for proper implementation.
- External Components: May demand additional external components for full PFC functionality.
- Cost: Specialized PFC controllers like the LT3479EFE#PBF may come at a higher cost compared to basic controllers.
Are There Any Equivalents/Alternatives to LT3479EFE#PBF for Recommendation?
- Alternatives to the LT3479EFE#PBF include the MCP16331 from Microchip Technology and the UCC28180 from Texas Instruments.
- The LT3799 from Analog Devices is a related PFC controller offering similar functionality.
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