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規格
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概述
Description
The LTM4644 is a highly efficient, quad-output step-down µModule regulator designed for space-constrained applications. It integrates four independent switching regulators, inductors, and supporting components within a compact package, simplifying design and reducing the need for external components. Each channel can deliver up to 4A of output current, with the ability to be paralleled for higher current requirements.
Key features include a wide input voltage range from 4V to 14V, adjustable output voltages from 0.6V to 5.5V, and high efficiency due to its synchronous rectification. The device supports frequency synchronization, programmable soft-start, and is capable of output voltage tracking and margining. The LTM4644 also includes protection features like overcurrent, overvoltage, and thermal shutdown.
This µModule regulator is suitable for various applications, including telecom, networking, and industrial equipment, where space-saving and efficient power conversion are critical. Its ease of use, robust performance, and compact design make it an excellent choice for designers seeking to streamline their power management needs.
Key features include a wide input voltage range from 4V to 14V, adjustable output voltages from 0.6V to 5.5V, and high efficiency due to its synchronous rectification. The device supports frequency synchronization, programmable soft-start, and is capable of output voltage tracking and margining. The LTM4644 also includes protection features like overcurrent, overvoltage, and thermal shutdown.
This µModule regulator is suitable for various applications, including telecom, networking, and industrial equipment, where space-saving and efficient power conversion are critical. Its ease of use, robust performance, and compact design make it an excellent choice for designers seeking to streamline their power management needs.
Equivalent
The LTM4644 is a quad-output step-down µModule regulator by Analog Devices. Equivalent products can include:
1. Texas Instruments TPS65400 - A quad-output buck converter.
2. Maxim Integrated MAX20743 - A quad-output DC-DC step-down regulator.
3. Renesas ISL8240M - A dual 40V, high current step-down power module, which can be paralleled for higher output.
These alternatives may vary in specifications like output current and voltage, so it's essential to check compatibility with specific applications.
1. Texas Instruments TPS65400 - A quad-output buck converter.
2. Maxim Integrated MAX20743 - A quad-output DC-DC step-down regulator.
3. Renesas ISL8240M - A dual 40V, high current step-down power module, which can be paralleled for higher output.
These alternatives may vary in specifications like output current and voltage, so it's essential to check compatibility with specific applications.
Features
The LTM4644 is a quad-output step-down µModule regulator from Analog Devices. Key features include:
1. Compact Design: Integrated regulator, inductor, and supporting components in a 9mm x 15mm x 5.01mm BGA package.
2. Wide Input Voltage Range: Supports input voltages from 4V to 14V.
3. Adjustable Output Voltage: Each channel can be set between 0.6V to 5.5V, suitable for different applications.
4. High Efficiency: Operates efficiently with up to 4A output current per channel.
5. Parallelable Outputs: Channels can be paralleled for increased current output, combining up to 16A on a single rail.
6. Current Sharing: Ensures balanced load distribution when outputs are paralleled.
7. Easy Design: Few external components required for operation, simplifying the design process.
8. Protection Features: Includes overcurrent protection, thermal shutdown, and short-circuit protection for reliability.
9. Thermal Management: Efficient thermal design for optimal performance in high-density applications.
10. Applications: Suitable for use in industrial, telecom, and networking equipment where space is limited.
These features make the LTM4644 a versatile solution for power regulation in compact and demanding environments.
1. Compact Design: Integrated regulator, inductor, and supporting components in a 9mm x 15mm x 5.01mm BGA package.
2. Wide Input Voltage Range: Supports input voltages from 4V to 14V.
3. Adjustable Output Voltage: Each channel can be set between 0.6V to 5.5V, suitable for different applications.
4. High Efficiency: Operates efficiently with up to 4A output current per channel.
5. Parallelable Outputs: Channels can be paralleled for increased current output, combining up to 16A on a single rail.
6. Current Sharing: Ensures balanced load distribution when outputs are paralleled.
7. Easy Design: Few external components required for operation, simplifying the design process.
8. Protection Features: Includes overcurrent protection, thermal shutdown, and short-circuit protection for reliability.
9. Thermal Management: Efficient thermal design for optimal performance in high-density applications.
10. Applications: Suitable for use in industrial, telecom, and networking equipment where space is limited.
These features make the LTM4644 a versatile solution for power regulation in compact and demanding environments.
Pinout
The LTM4644 is a quad-output, step-down µModule regulator. It is designed to deliver high-efficiency power conversion in a compact form factor. The device comes in a 9mm x 15mm x 5.01mm BGA package with a total of 144 pins.
Each of the four channels in the LTM4644 is capable of delivering up to 4A of output current. The module integrates the switching controller, power MOSFETs, inductor, and associated components to simplify design and reduce the space required on a PCB.
Key functions include:
- Quad-output configuration for multi-rail systems.
- Programmable output voltage using an external resistor divider.
- High efficiency over a wide load range.
- Fast transient response.
- Overcurrent protection, thermal shutdown, and power good signal for each channel.
This combination of features makes the LTM4644 suitable for a wide range of applications, including telecom, datacom, and general-purpose point-of-load regulation in complex systems.
Each of the four channels in the LTM4644 is capable of delivering up to 4A of output current. The module integrates the switching controller, power MOSFETs, inductor, and associated components to simplify design and reduce the space required on a PCB.
Key functions include:
- Quad-output configuration for multi-rail systems.
- Programmable output voltage using an external resistor divider.
- High efficiency over a wide load range.
- Fast transient response.
- Overcurrent protection, thermal shutdown, and power good signal for each channel.
This combination of features makes the LTM4644 suitable for a wide range of applications, including telecom, datacom, and general-purpose point-of-load regulation in complex systems.
Manufacturer
The LTM4644 is manufactured by Analog Devices, Inc. This company specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices provides solutions for a wide range of industries including automotive, healthcare, consumer electronics, communications, and industrial automation.
Application
The LTM4644 is a quad-output step-down μModule regulator used in various applications requiring efficient power delivery. Key application areas include:
1. Telecommunications: Powers FPGAs, ASICs, and DSPs in base stations and networking equipment.
2. Data Centers: Supports power management for servers and storage systems.
3. Industrial Systems: Provides reliable voltage regulation in automation and control equipment.
4. Aerospace and Defense: Utilized in avionics and communication systems for robust performance under harsh conditions.
5. Medical Devices: Powers sensitive electronics in imaging equipment and patient monitoring systems.
6. Consumer Electronics: Used in high-performance computing devices for efficient power distribution.
These applications leverage its high efficiency, compact size, and multi-output capabilities.
1. Telecommunications: Powers FPGAs, ASICs, and DSPs in base stations and networking equipment.
2. Data Centers: Supports power management for servers and storage systems.
3. Industrial Systems: Provides reliable voltage regulation in automation and control equipment.
4. Aerospace and Defense: Utilized in avionics and communication systems for robust performance under harsh conditions.
5. Medical Devices: Powers sensitive electronics in imaging equipment and patient monitoring systems.
6. Consumer Electronics: Used in high-performance computing devices for efficient power distribution.
These applications leverage its high efficiency, compact size, and multi-output capabilities.
Package
The LTM4644 is a quad-output step-down DC/DC μModule (micro-module) regulator. It is typically housed in a compact BGA (Ball Grid Array) package to provide efficient power management solutions. The BGA packaging helps in achieving a high power density and is suitable for space-constrained applications.
