LT3479EFE

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LT3479EFE

  • Fabricant
  • Mfr. Partie #LT3479EFE
  • Paquet TSSOP-16
  • Fiche de données
  • En stock5507

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Spécifications

Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C
Series LT3479
Brand Analog Devices
Product Type Switching Voltage Regulators
Subcategory PMIC - Power Management ICs
Mounting Style SMD/SMT
Operating Supply Current 5 mA
Topology Boost
Output Voltage 42 V
Output Current 3 A
Number of Outputs 1 Output
Input Voltage - Min 2.3 V
Input Voltage - Max 24 V
Switching Frequency 200 kHz to 3.5 MHz
Delivery Restrictions Mouser does not sell this product in your region.
Package/Case TSSOP-16

Vue d'ensemble

Description

The LT3479EFE is a high-performance, dual-output DC/DC converter designed for efficient power management in various electronic applications. Manufactured by Analog Devices, the component is well-suited for use in systems requiring multiple power rails. It integrates two independent switching regulators, capable of delivering output currents of up to 1.5A each, with a wide input voltage range typically from 2.5V to 25V.
Its flexible design supports step-up, step-down, and inverting configurations, making it versatile for different circuit requirements. The LT3479EFE features a high switching frequency, often around 1.2MHz, allowing for the use of smaller external components and contributing to a more compact solution. It also includes important functionalities such as soft-start, frequency synchronization, and thermal shutdown for enhanced reliability and performance.
The LT3479EFE is typically used in applications like portable devices, industrial power supplies, and automotive systems, where efficient and compact power conversion is essential. Its efficiency, ease of use, and robust feature set make it a popular choice among designers looking for reliable power management solutions.

Features

The LT3479EFE is a step-up DC/DC converter featuring a dual-output configuration. Key features include:
1. Wide Input Voltage Range: It operates from 2.5V to 16V, making it versatile for various applications.
2. Dual Output: The device can provide two independently regulated outputs, useful for powering multiple system components.
3. High Efficiency: The converter is designed for efficiency with its internal 42V, 2A switch, reducing power loss and extending battery life in portable applications.
4. Adjustable Switching Frequency: Its switching frequency can be set between 200kHz to 3MHz, allowing for optimization between efficiency and external component size.
5. Synchronization Capability: It can be synchronized to an external clock for noise-sensitive applications.
6. Low Quiescent Current: The LT3479EFE offers low quiescent current (less than 100µA), suitable for battery-operated devices.
7. Protection Features: Includes features like soft-start, overvoltage protection, and thermal shutdown, enhancing reliability and safety.
8. Compact Package: It is available in a thermally enhanced 16-lead TSSOP package, which is space-efficient for compact designs.
This combination of features makes the LT3479EFE ideal for applications requiring robust dual-output power conversion with high efficiency and flexibility.

Package

The LT3479EFE is packaged in a 16-lead TSSOP (Thermally Enhanced Thin Shrink Small Outline Package) with exposed pad for better thermal performance.

Pinout

The LT3479EFE is a high-performance DC/DC converter from Analog Devices. It is specifically designed for driving high-current LEDs and provides a constant current output. The LT3479EFE is housed in a 16-pin TSSOP package with exposed pads for enhanced thermal performance.
Here is a brief overview of its pin functions:
1. SW: Switch pin.
2. VIN: Input supply pin.
3. VC: Compensation pin.
4. FB: Feedback pin.
5. LT: Logic threshold input.
6. RT: Timing resistor pin.
7. GND: Ground pin.
8. PG: Power good indicator.
9. SHDN: Shutdown pin.
10. CTRL1: Control pin for dimming.
11. CTRL2: Additional control pin for dimming.
12. OS: Open sense pin.
13. PGND: Power ground pin.
14. SYNC: Synchronization pin.
15. N/C: No connection.
16. OUT: Output pin.
These pins collectively help in configuring the device for various LED driving applications, allowing for functionalities such as dimming, synchronization, and protection features.

Manufacturer

The LT3479EFE is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that designs and manufactures a wide range of integrated circuits used in electronic equipment. The company specializes in data conversion, signal processing, and power management technology, serving various industries, including communications, automotive, industrial, healthcare, and consumer electronics.

Application

The LT3479EFE is a dual-output DC/DC converter commonly used in applications requiring efficient power management and voltage boosting. Key application areas include LED backlighting for LCD displays, automotive lighting systems, portable electronic devices, industrial automation, and telecom equipment. It is particularly suited for driving series-connected LEDs and powering bias voltages in various types of displays. Its compact design and high efficiency make it ideal for space-constrained applications where reliable and adjustable power output is essential.

Equivalent

The LT3479EFE is a dual step-up DC/DC converter from Analog Devices (formerly Linear Technology). Equivalent products can include similar dual boost converters from manufacturers like Texas Instruments (e.g., TPS61170), Maxim Integrated (e.g., MAX1771), and Microchip (e.g., MCP1640). However, exact equivalence depends on specific requirements like voltage, current ratings, and additional features. Always consult datasheets for compatibility.

Expédition

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DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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