LT3430EFE

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LT3430EFE

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Switching Voltage Regulators LT3430 - High Voltage, 3A, 200kHz Step-Down Switching Regulator

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  • 제조업체 부품 #LT3430EFE

  • 데이터시트 LT3430EFE DataSheet

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개요

Description

The LT3430EFE is a high-performance, step-down (buck) switching regulator designed by Linear Technology, which is now part of Analog Devices. It is capable of converting input voltages ranging from 3.3V to 60V down to a lower output voltage, making it suitable for a variety of applications, including automotive, industrial, and telecommunications systems.
This regulator can deliver up to 3A of output current with high efficiency, often over 90%, which helps to minimize heat generation and power loss. The LT3430EFE features a fixed switching frequency, typically around 200kHz, which allows for smaller external components and reduced overall solution size. It also includes a range of protective features like cycle-by-cycle current limiting, thermal shutdown, and soft-start capability to ensure reliable operation and protect against overloads.
With its combination of wide input voltage range, high efficiency, and robust protection features, the LT3430EFE is well-suited for applications where space, efficiency, and reliability are critical considerations.

Equivalent

The LT3430EFE is a step-down switching regulator from Analog Devices (formerly Linear Technology). Equivalent products from other manufacturers might include:
1. TI (Texas Instruments) LM2678 - 5A Step-Down Voltage Regulator.
2. ON Semiconductor NCP3063 - 1.5A Step-Down Regulator.
3. STMicroelectronics L4973V5.1 - 3.5A Switching Regulator.
Always verify specifications and pin compatibility before substituting.

Features

The LT3430EFE is a high-performance, step-down switching regulator. Key features include:
1. Wide Input Voltage Range: It operates from 3.3V to 60V, making it versatile for various applications.
2. Output Voltage: Adjustable output voltage, with a maximum output current of 3A.
3. High Efficiency: Designed for efficiencies up to 95%, reducing power loss and heat.
4. Switching Frequency: Operates at a fixed 200kHz frequency, optimizing size and performance balance.
5. Low Shutdown Current: Features a low shutdown current of 10µA, conserving power when not in operation.
6. Thermal Protection: Built-in thermal shutdown protects the regulator from overheating.
7. Current Mode Control: Provides excellent line and load transient response.
8. Soft-Start Capability: Includes soft-start functionality to prevent inrush current during startup.
9. Package: Available in a thermally enhanced 16-lead TSSOP package, aiding in heat dissipation.
These features make the LT3430EFE suitable for automotive, industrial, and telecom power supply applications, where efficiency, durability, and wide voltage range are crucial.

Pinout

The LT3430EFE is a step-down switching regulator by Analog Devices. It typically comes in a 16-lead TSSOP package. The pin functions are as follows:
1. VIN: Input voltage supply.
2. SW: Switch node connected to the inductor.
3. BOOST: Bootstrapped drive for the internal power switch.
4. GND: Ground.
5. VC: Compensation pin for the error amplifier.
6. FB: Feedback pin for voltage regulation.
7. SYNC: Synchronization input for frequency control.
8. RT: Timing resistance input; sets switching frequency.
9-16. Various other functional pins depending on the specific implementation and configuration, including additional ground and supply connections.
The LT3430EFE features a high-efficiency operation for automotive and industrial applications, providing a regulated output voltage from a wide input voltage range. For precise pin configurations and further functional details, referring to the official datasheet is recommended.

Manufacturer

The LT3430EFE is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that specializes in the design and manufacturing of semiconductor products and solutions. The company is known for its high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs) used in a wide range of electronic equipment. Their products serve various sectors, including industrial, automotive, communications, healthcare, and consumer electronics. Analog Devices is recognized for its innovation and quality in the development of components that enhance signal processing and power management capabilities in electronic systems.

Application

The LT3430EFE is a high-voltage, high-efficiency DC/DC converter that is primarily used in applications requiring step-down voltage conversion. Its key application areas include:
1. Automotive Systems: Powering electronic control units and infotainment systems.
2. Industrial Equipment: Providing reliable power for control systems and sensors.
3. Telecommunications: Supplying power to network equipment and remote communication devices.
4. Consumer Electronics: Used in power supplies for devices like laptops and gaming consoles.
5. Aerospace and Defense: Reliable power conversion in rugged and high-reliability environments.
Its wide input voltage range and high efficiency make it suitable for a variety of demanding applications.

Package

The LT3430EFE is packaged in a 16-lead Exposed Pad TSSOP (Thin Shrink Small Outline Package).