LTC3418EUHF

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LTC3418EUHF

IC REG BUCK ADJUSTABLE 8A 38QFN

  • Manufacturer
  • Mfr. Part #LTC3418EUHF
  • Package QFN-38
  • Datasheet
  • In Stock6628

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Specifications

Package Tube
ProductStatus Obsolete
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 2.25V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 5V
Current-Output 8A
Frequency-Switching 1MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 38-WFQFN Exposed Pad

Overview

Description

The LTC3418EUHF is a high-efficiency, monolithic synchronous step-down DC/DC converter developed by Analog Devices (formerly Linear Technology). It is designed to provide a regulated output voltage from a wide input voltage range, typically 2.25V to 5.5V, making it suitable for applications powered by single-cell lithium-ion batteries or other low-voltage sources. The device can deliver up to 8A of output current, making it ideal for powering demanding loads in compact applications.
The LTC3418EUHF features a current-mode architecture, which provides fast transient response and easy loop compensation. It operates at a fixed frequency of 4MHz and supports pulse skip mode for improved efficiency at light loads. The device includes programmable soft-start, short-circuit protection, and thermal shutdown to ensure reliable operation.
Packaged in a 24-lead 4mm x 4mm QFN, the LTC3418EUHF is suitable for space-constrained applications such as portable electronic devices, telecom equipment, and distributed power systems. Overall, it offers a compact, efficient, and robust solution for modern power management needs.

Features

The LTC3418EUHF is a high-efficiency, monolithic synchronous step-down DC/DC converter. Key features include:
1. Input Voltage Range: Operates from a 2.25V to 5.5V input, making it suitable for various battery-powered applications.
2. Output Voltage: Adjustable output voltage down to 0.8V.
3. Output Current: Capable of delivering up to 8A continuous output current.
4. Efficiency: High efficiency, reaching up to 95%, due to its internal synchronous rectification.
5. Switching Frequency: Programmable frequency from 300kHz to 4MHz, which allows for optimization between efficiency and component size.
6. Operating Modes: Offers Burst Mode operation for high efficiency at light loads.
7. Protection Features: Includes short-circuit protection, thermal shutdown, and overcurrent protection.
8. Soft-Start: Programmable soft-start feature to control inrush current during startup.
9. Package: Available in a thermally enhanced 32-lead (5mm × 5mm) QFN package.
These features make the LTC3418EUHF well-suited for applications in portable electronics, distributed power systems, and point-of-load regulation.

Package

The LTC3418EUHF is housed in a 5mm x 5mm QFN (Quad Flat No-Lead) package with 32 leads. This package type is compact and suitable for high-density applications, offering efficient thermal performance and ease of PCB routing.

Pinout

The LTC3418EUHF is a high-efficiency monolithic synchronous step-down regulator from Analog Devices. It is designed to provide up to 8A of output current. The device comes in a 32-lead (5mm × 5mm) QFN package. The primary function of the LTC3418EUHF is to step down a higher input voltage to a lower output voltage with high efficiency, making it suitable for applications such as power supplies for microprocessors, digital signal processors, and other high-current devices.
Key features include a wide input voltage range, typically from 2.25V to 5.5V, and a programmable output voltage. It also offers features such as a fast transient response, current-mode control, and a constant frequency architecture. The LTC3418EUHF is equipped with additional functionalities like soft-start, short-circuit protection, and thermal shutdown to ensure reliable operation in various applications.

Manufacturer

The LTC3418EUHF is manufactured by Analog Devices, Inc. Analog Devices is a company known for designing and manufacturing a wide range of products, including analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company serves various industries, such as communications, computing, industrial, automotive, and consumer electronics. They focus on high-performance analog technology, serving to bridge the physical and digital worlds by providing solutions for sensing, measuring, and connecting devices and systems.

Application

The LTC3418EUHF is a high-efficiency, monolithic synchronous buck regulator. It is commonly used in applications requiring efficient power conversion, such as portable electronics, telecommunications equipment, distributed power systems, and automotive electronics. Its ability to deliver up to 8A of continuous output current from a compact package makes it suitable for powering processors, FPGAs, and other digital ICs in space-constrained environments. Additionally, its wide input voltage range and fast transient response are advantageous for battery-powered devices and systems needing quick response to load changes.

Equivalent

The LTC3418EUHF is a high-efficiency synchronous step-down regulator. Equivalent products could include the Texas Instruments TPS54620, Maxim Integrated MAX17503, and Analog Devices ADP2386. Ensure compatibility by checking parameters such as input voltage range, output current, switching frequency, efficiency, and package type for specific design requirements.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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