LT3439EFE

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LT3439EFE

IC REG PUSH-PULL 1A 16TSSOP

100% gốc & amp; Mới

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Bảo hành 365 ngày

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Thông số kỹ thuật

Part Status Discontinued at DigiKey
Base Product Number LT3439
Function Step-Up/Step-Down
Output Configuration Positive, Isolation Capable
Topology Push-Pull
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 2.8V
Voltage - Input (Max) 17.5V
Current - Output 1A
Frequency - Switching 20kHz ~ 250kHz
Synchronous Rectifier No
Mounting Type Surface Mount
Package 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package 16-TSSOP-EP
Packaging Tube

Tổng quan

Description

The LT3439EFE is a high-performance, synchronous 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, automotive, and telecommunications. The device provides adjustable output voltage and can deliver up to 2A of output current.
Key features include a high efficiency, low quiescent current, and integrated high-side and low-side power switches, which simplify the design and reduce the component count. The LT3439EFE supports various operating modes, including pulse-width modulation (PWM) for improved efficiency under varying loads. It also includes protection features such as overcurrent and thermal shutdown.
This device is available in a compact 16-lead, thermally enhanced TSSOP package, making it suitable for space-constrained applications. Overall, the LT3439EFE is an effective solution for efficient power management in demanding environments.

Features

The LT3439EFE is a high-performance, step-down DC-DC converter designed for efficient power management in various applications. Key features include:
1. Input Voltage Range: Supports a wide input voltage range from 4.5V to 60V.
2. Output Current: Delivers up to 1A of output current.
3. High Efficiency: Achieves efficiencies up to 95%, minimizing heat generation.
4. Adjustable Output Voltage: Output voltage can be set from 1.2V to 40V using external resistors.
5. Integrated Switch: Contains a high-side power switch, simplifying design and reducing component count.
6. Frequency: Offers a selectable frequency range of 200kHz to 2MHz for optimized performance in various applications.
7. Thermal Protection: Includes thermal shutdown and current limit features for enhanced reliability.
8. Small Package: Available in a compact 16-lead TSSOP package, suitable for space-constrained designs.
These features make the LT3439EFE ideal for automotive, industrial, and consumer electronics applications requiring robust and efficient power conversion.

Package

The LT3439EFE is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package) format, which is designed for surface mounting and provides a compact solution for various applications.

Pinout

The LT3439EFE is a high-speed, synchronous step-down (buck) regulator from Analog Devices, specifically designed for high efficiency in various applications. It comes in a 20-lead TSSOP package.
Pin Count: 20 Pins
Key Functions:
1. VIN (Input Voltage): Supplies power to the device.
2. SW (Switch): Connects to the inductor for energy transfer.
3. GND (Ground): Common reference point for the circuit.
4. VOUT (Output Voltage): Outputs the regulated voltage.
5. SS (Soft Start): Controls the ramp-up of output voltage.
6. COMP (Compensation): Connects to external compensation network for stability.
7. FB (Feedback): Monitors output voltage to maintain regulation.
8. RUN (Run Control): Enables or disables the regulator.
9. PG (Power Good): Indicates when the output voltage is within regulation.
10. MODE (Mode Control): Selects between Continuous or Pulse-Skipping mode.
These pins collectively facilitate efficient step-down voltage regulation with features for performance optimization and protection.

Manufacturer

The LT3439EFE is manufactured by Analog Devices, Inc. (ADI), a well-known semiconductor company that specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices designs and manufactures a wide range of products used in various applications, including instrumentation, communications, automotive, and industrial automation. The company focuses on providing innovative solutions that enhance performance and efficiency in electronic systems. Founded in 1965, ADI has established itself as a leader in the analog semiconductor industry, known for its commitment to quality and technical excellence.

Application

The LT3439EFE is a high-performance boost converter designed for applications requiring a compact power supply solution. It is commonly used in battery-powered devices, portable electronics, LED drivers, automotive systems, and industrial power supplies. Its ability to deliver high output current and efficiency makes it suitable for powering microcontrollers, sensors, and wireless communication modules in various consumer and industrial applications.

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