LT3479EFE

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LT3479EFE

+Nomenclature

  • FabricantÉquipement de simulation

  • Pièce fabricant #LT3479EFE

  • Package TSSOP-16

  • En stock4955

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Spécifications

Attribut Valeur
MinimumOperatingTemperature - 40 C
MaximumOperatingTemperature + 85 C
Series LT3479
Brand Analog Devices
ProductType Switching Voltage Regulators
Subcategory PMIC - Power Management ICs
MountingStyle SMD/SMT
OperatingSupplyCurrent 5 mA
Topology Boost
OutputVoltage 42 V
OutputCurrent 3 A
NumberofOutputs 1 Output
InputVoltage-Min 2.3 V
InputVoltage-Max 24 V
SwitchingFrequency 200 kHz to 3.5 MHz
DeliveryRestrictions Mouser does not sell this product in your region.
Package/Case TSSOP-16

Présentation

Description

The LT3479EFE is a high-performance, step-down (buck) DC-DC converter designed by Analog Devices. It features a wide input voltage range, typically from 4.5V to 60V, making it suitable for various applications, including industrial and automotive power systems. The device can deliver high efficiency, often exceeding 90%, which helps in reducing thermal management challenges.
Key features include a programmable output voltage, adjustable switching frequency, and an integrated power switch to minimize external component count. The LT3479EFE supports a variety of output configurations and can handle load currents up to 2A. Additionally, it offers various protection features such as overcurrent protection, thermal shutdown, and input under-voltage lockout.
With its robust performance and versatility, the LT3479EFE is ideal for applications requiring compact and efficient voltage regulation, such as battery-powered devices, power supplies, and point-of-load converters.

Equivalent

The LT3479EFE chip is a high-frequency synchronous step-down (buck) regulator. Equivalent products include the Texas Instruments TPS563201, Analog Devices ADP2302, and the On Semiconductor NCP81239. These alternatives provide similar voltage regulation features, efficiency, and output current capabilities suitable for various applications. Always verify specifications and application requirements for compatibility.

Features

The LT3479EFE is a high-performance, high-efficiency LED driver designed for driving multiple LEDs in series. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 60V, making it suitable for various applications, including automotive and industrial lighting.
2. Constant Current Regulation: Delivers precise constant current output for consistent LED brightness, adjustable up to 1.0A.
3. Integrated Power Switch: Reduces external component count and enhances reliability.
4. High Efficiency: Achieves efficiencies of up to 95%, minimizing heat generation and improving thermal performance.
5. Thermal Shutdown: Features built-in thermal protection to prevent damage from overheating.
6. Dimmer Compatibility: Supports PWM dimming for adjustable light levels.
7. Adjustable Frequency: The switching frequency can be adjusted from 100kHz to 1MHz, allowing for optimization of component sizes.
8. Small Package: Available in a compact 16-lead TSSOP package, facilitating space-saving designs.
These features make the LT3479EFE ideal for various LED applications with stringent performance requirements.

Pinout

The LT3479EFE is a switching regulator from Analog Devices with a total of 16 pins. It is primarily designed for boosting applications and can generate output voltages from a wide range of input voltages. The key functions of its pins include:
1. VIN: Input voltage supply.
2. SW: Switch node for inductor connection.
3. GND: Ground reference.
4. VOUT: Output voltage.
5. FB: Feedback pin for voltage regulation.
6. COMP: Compensation network connection for stability.
7. SS: Soft start control to limit inrush current.
8. SWC: Switching control for internal features.
9. IMAX: Current limit adjustment.
10. FREQ: Frequency setting for operation.
11. EN: Enable pin to turn the device on or off.
12. PG: Power good indicator.
13. CSN/ CSP: Current sense pins for current regulation.
14. SENSE- / SENSE+: Differential input for current sensing.
These functions facilitate efficient voltage conversion and regulation in various applications.

Manufacturer

The LT3479EFE is manufactured by Analog Devices, Inc., a prominent company in the semiconductor industry. Analog Devices specializes in the design, manufacturing, and marketing of high-performance analog, mixed-signal, and digital signal processing integrated circuits. Their products are widely used across various sectors, including communications, automotive, industrial automation, healthcare, and consumer electronics.
Analog Devices is known for its innovative technology and solutions that enhance the performance and efficiency of electronic systems. The company focuses on delivering products that improve signal processing and data conversion, which are essential for modern electronic applications. Founded in 1965, Analog Devices has established itself as a leader in the field, with a strong emphasis on research and development to stay at the forefront of technology advancements. The LT3479EFE itself is a high-performance power management device, showcasing the company's commitment to providing robust and reliable solutions for complex electronic designs.

Application

The LT3479EFE is a high-performance LED driver designed for various applications, including automotive lighting, backlighting for displays, general illumination, and signage. It supports multiple LED configurations, enabling efficient driving of strings of LEDs in series or parallel arrangements. The driver is suitable for applications requiring high efficiency, dimming capabilities, and robust thermal performance. Its versatility also extends to battery-powered devices, where low quiescent current is essential. Additionally, it can be used in industrial lighting and architectural lighting solutions.

Package

The LT3479EFE comes in a 28-lead TSSOP (Thin Shrink Small Outline Package) form factor.