LTC7818IUJ#WTRPBF

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LTC7818IUJ#WTRPBF

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BUCK/BUCK/BOOST SYNC CTL, 40V, 3

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Especificações

Atributo Valor
Part Status Active
Output Type Transistor Driver
Function Step-Up/Step-Down
Output Configuration Positive
Topology Buck-Boost
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 4.5V ~ 40V
Frequency - Switching 100kHz ~ 3MHz
Duty Cycle (Max) 100%
Synchronous Rectifier Yes
Clock Sync No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 40-WFQFN Exposed Pad
Supplier Device Package 40-QFN (6x6)

Visão Geral

Description

The LTC7818IUJ#WTRPBF is a high-performance synchronous step-down dual converter IC from Analog Devices. It integrates two buck controllers that can operate from input voltages ranging between 4.5V to 60V, making it suitable for automotive, industrial, and distributed power systems. The device is capable of delivering high output currents with excellent efficiency, thanks to its synchronous rectification and low RDS(ON) external MOSFETs.
Key features of the LTC7818IUJ#WTRPBF include a fixed frequency operation, selectable between 50kHz and 3MHz, allowing for optimization between efficiency and component size. Additionally, it offers programmable output voltages, soft-start, and tracking capabilities, as well as short-circuit protection and thermal shutdown to ensure robust performance and reliability.
The IC is housed in a compact 32-lead QFN package, which allows for efficient heat dissipation and a small footprint on the PCB. The "WTRPBF" suffix indicates RoHS compliance, ensuring the product is free from lead and other hazardous substances.

Equivalent

The LTC7818IUJ#WTRPBF is a dual-output, step-down DC/DC controller by Analog Devices. Equivalent products may include the Texas Instruments TPS543C20, Maxim Integrated's MAX20751, and Infineon's IR38263. These alternatives also provide high-efficiency power conversion and support similar voltage and current requirements. However, exact specifications, features, and configurations like pin compatibility may vary, so it's important to compare datasheets to ensure suitability for your specific application.

Features

The LTC7818IUJ#WTRPBF is a high-performance, dual-output synchronous step-down DC/DC switching regulator controller. It features two outputs, which can be configured as dual buck converters or a single buck and a boost converter, providing versatility in power management applications. The device operates over an input voltage range of 4.5V to 60V, making it suitable for a wide range of applications, including automotive, industrial, and telecom systems.
Key features include:
1. High Efficiency: Synchronous rectification increases efficiency, especially at higher currents.
2. Wide Input Voltage Range: Supports 4.5V to 60V, ideal for diverse applications.
3. Adjustable Switching Frequency: Allows for optimization between efficiency and component size.
4. Current Mode Control: Provides fast transient response and easy loop compensation.
5. Low Quiescent Current: Improves efficiency at light loads.
6. Protection Features: Includes overvoltage, overcurrent, and thermal protection.
7. Compact Package: Available in a thermally enhanced 32-lead 5mm × 5mm QFN package.
These features make the LTC7818IUJ#WTRPBF a robust solution for efficient power regulation in high-performance systems.

Pinout

The LTC7818IUJ#WTRPBF is a triple-output (buck/buck/boost) synchronous DC/DC controller from Analog Devices. It is designed for applications requiring multiple voltage rails and offers a high level of integration and efficiency.
- Pin Count: The LTC7818IUJ#WTRPBF comes in a 32-lead QFN package.
- Function: It controls one synchronous boost and two synchronous buck converters. This allows for efficient step-up and step-down voltage conversion from a single IC. The chip features a wide input voltage range and is capable of providing high output current, making it suitable for various high-performance applications.
The device offers features such as current-mode control, accurate output voltage regulation, programmable switching frequency, and synchronization capabilities. It is designed for efficiency and thermal performance, fitting into complex power management schemes in industrial, automotive, and communication systems.

Manufacturer

The LTC7818IUJ#WTRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits used across various industries. The company provides solutions for a wide range of applications, including industrial, automotive, consumer electronics, communications, and healthcare. Analog Devices is known for its high-performance products that are essential in converting real-world phenomena into actionable data, making it a key player in the advancement of technologies that require precision and reliability.

Application

The LTC7818IUJ#WTRPBF is a high-performance, triple-output buck/buck/boost synchronous DC/DC controller designed for a wide range of applications. It is ideal for automotive systems, industrial control, telecommunications, and distributed power architectures. The controller's ability to efficiently convert a wide input voltage range to multiple outputs makes it suitable for automotive infotainment and telematics systems, factory automation, and communications equipment. Additionally, the LTC7818 can be used in server and networking systems where multiple regulated voltage rails are needed, as well as in battery-powered devices due to its high efficiency and low quiescent current.

Package

The LTC7818IUJ#WTRPBF is packaged in a 32-lead plastic 5mm x 5mm QFN (Quad Flat No-Lead) package. This compact package type is commonly used for high-density electronic applications, offering good thermal performance and electrical characteristics.

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