LTC7818IUJ#WTRPBF

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LTC7818IUJ#WTRPBF

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

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사양

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)

개요

Description

The LTC7818IUJ#WTRPBF is a high-performance, dual-output synchronous step-down DC-DC converter designed by Analog Devices (formerly Linear Technology). It features a wide input voltage range (4.5V to 60V) and can deliver up to 10A per channel with a programmable output voltage down to 0.8V. The device is optimized for high efficiency, making it suitable for applications such as industrial, automotive, and telecommunications.
Key features include selectable frequency operation (up to 1MHz), current mode control for excellent transient response, and built-in protection mechanisms like output overvoltage and thermal shutdown. Its compact package allows for efficient thermal management and PCB design, making it ideal for space-constrained applications.
The LTC7818 also supports advanced features like soft-start, selectable power good, and synchronization capabilities, enhancing its versatility in various power management scenarios. Overall, it is a robust solution for designers seeking reliable and efficient power conversion in demanding environments.

Features

The LTC7818IUJ#WTRPBF is a high-performance synchronous step-down DC/DC converter designed for efficient power management. Key features include:
1. Wide Input Voltage Range: Accepts input voltages from 4.5V to 60V.
2. High Efficiency: Offers up to 95% efficiency, minimizing power loss and heat generation.
3. Adaptive On-Time Control: Provides optimal transient response and eliminates the need for external compensation components.
4. Programmable Output Voltage: Adjustable output voltage down to 0.8V, enabling versatility for various applications.
5. Internal Power Switches: Integrates high-side and low-side MOSFETs, reducing board space and component count.
6. Frequency Operation: Configurable switching frequency from 100kHz to 1.5MHz, allowing trade-offs between size and efficiency.
7. Soft-Start Feature: Reduces inrush current during startup, enhancing system reliability.
8. Protection Features: Includes overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.
These features make the LTC7818 ideal for a range of applications, including industrial, automotive, and telecommunications power systems.

Package

The LTC7818IUJ#WTRPBF comes in a 32-lead HTQFN (Heat Sink Thin Quad Flat No-lead) package, which is designed for efficient thermal performance and reduced footprint.

Pinout

The LTC7818IUJ#WTRPBF is a high-performance synchronous step-down regulator from Analog Devices. It features a total of 32 pins.
Key functions of the LTC7818 include:
1. Voltage Regulation: It provides a programmable output voltage with a range suitable for various applications.
2. Current Mode Control: This enhances stability and transient response.
3. Synchronization: The device supports synchronization to an external clock.
4. Power Good Indicator: It includes a power good output to indicate proper operation.
5. Soft-Start: It has a soft-start feature to control inrush current during power-up.
6. Enable/Disable Control: The IC can be enabled or disabled for power management.
7. Thermal Shutdown: It incorporates protection features like thermal shutdown to prevent damage.
The LTC7818 is designed for applications such as telecommunications, industrial equipment, and other high-performance power supply needs.

Manufacturer

The manufacturer of the LTC7818IUJ#WTRPBF is Analog Devices, Inc. (ADI). Analog Devices is a global company specializing in data conversion, signal processing, and power management technologies. Founded in 1965, ADI designs and manufactures a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs) for various applications, including industrial automation, automotive, communications, and consumer electronics. The LTC7818 is a high-performance, synchronous step-down DC/DC converter, showcasing ADI's expertise in power management solutions. ADI is known for its innovation and high-quality products, serving customers across diverse industries worldwide.

Application

The LTC7818IUJ#WTRPBF is a high-performance synchronous step-down regulator used in applications such as power management for telecom systems, industrial automation, data centers, and automotive systems. It is suitable for powering FPGAs, microcontrollers, and processors, as well as in battery-powered devices where efficient voltage regulation is critical. Its features make it ideal for applications requiring high efficiency and precise output regulation under varying loads.

Equivalent

The LTC7818IUJ#WTRPBF is a high-performance synchronous step-down regulator. Equivalent products include the following:
1. LM5145-Q1 - Texas Instruments
2. TPS563201 - Texas Instruments
3. LTC3777 - Analog Devices
4. MAX17520 - Maxim Integrated
5. RT8098 - Richtek
Always verify specifications and compatibility for your specific application.

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