LTM4623

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LTM4623

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仕様

属性
Standard Pack Qty 1

概要

Description

The LTM4623 is a compact, high-efficiency μModule (micro-module) step-down regulator designed by Analog Devices. It is capable of delivering up to 3A of continuous output current with excellent transient response and high efficiency over a wide input voltage range of 4V to 20V. The device integrates a DC/DC controller, power switches, inductor, and all necessary support components in a small, low-profile package, making it ideal for space-constrained applications.
The LTM4623 features a high switching frequency, enabling the use of small-sized capacitors and minimizing output voltage ripple. Its design also includes current-mode control, enhancing stability and transient response. The device supports a wide output voltage range from 0.6V to 5.5V, which is programmable via a single external resistor.
With thermal protection, short-circuit protection, and an adjustable soft-start, the LTM4623 is suitable for distributed power systems, point-of-load regulation in networking, telecom, industrial, and medical applications. Its compact size and ease of use simplify the design process, reducing time-to-market for product development.

Equivalent

The LTM4623 is a micro power module from Analog Devices (formerly Linear Technology) designed for step-down DC/DC conversion. Equivalent products may include:
1. TI's TPSM84209: A 2A power module with integrated inductor.
2. Murata's MYMGC1R83RELC: A compact DC/DC converter.
3. Vicor's PI3325-00-LGIZ: A 2.5A ZVS buck regulator.
These products vary in specific features and performance, so a detailed comparison is recommended to ensure compatibility with your application.

Features

The LTM4623 is a high-efficiency, step-down µModule regulator designed by Analog Devices (formerly Linear Technology). It is a compact, surface-mount device that integrates a switching DC/DC regulator, inductor, and supporting components. Here are its key features:
1. Input Voltage Range: Operates with an input voltage range of 4.5V to 20V.
2. Output Voltage Range: Provides an adjustable output from 0.6V to 5.5V.
3. Output Current: Delivers up to 3A of continuous output current.
4. High Efficiency: Achieves efficiencies up to 90%, depending on the operating conditions.
5. Compact Size: Comes in a low-profile, compact 6.25mm × 6.25mm × 1.82mm BGA package.
6. Thermal Performance: Designed for efficient thermal management, allowing it to operate in high ambient temperature environments.
7. Soft-Start and Tracking: Includes programmable soft-start and voltage tracking for controlled power sequencing.
8. Protection Features: Built-in features such as overcurrent protection, thermal shutdown, and short-circuit protection.
9. Frequency Synchronization: Offers frequency synchronization capability for more flexible design integration.
These features make the LTM4623 suitable for a wide range of applications, including telecommunications, data communications, and industrial systems.

Pinout

The LTM4623 is a µModule (micromodule) step-down regulator. It features a 9-pin package, with the following pin functions:
1. VIN: Input voltage pin. It accepts a voltage range from 4V to 20V.
2. VOUT: Output voltage pin. It provides a regulated output voltage, typically adjustable from 0.6V up to 5.5V.
3. GND: Ground pin. It is the common ground for both the input and output power.
4. RUN: Run control pin. It enables or disables the regulator.
5. FB: Feedback pin. It is used to set the output voltage via an external resistor divider.
6. COMP: Compensation pin. It allows for external compensation to stabilize the output.
7. VFB: Feedback voltage pin. Used in conjunction with the FB pin for precise feedback.
8. SS: Soft-start pin. It determines the soft-start duration and controls the inrush current.
9. PGOOD: Power-good pin. It indicates when the output is within a certain voltage range.
The LTM4623 is designed for applications requiring high efficiency and compact size, such as in telecommunications and data communications equipment.

Manufacturer

The LTM4623 is manufactured by Analog Devices, Inc. This company is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. These products are used in a wide array of applications, including industrial, automotive, communication, healthcare, and consumer electronics. Analog Devices is known for its strong focus on innovation and quality in signal processing technology, providing components that are essential for converting, conditioning, and processing real-world signals.

Application

The LTM4623 is a micro module DC-DC step-down regulator designed for compact, high-efficiency power conversion. Application areas include telecommunications, data communications, networking equipment, and industrial systems. It is also suitable for distributed power architectures, where it can provide point-of-load regulation. The module's small size and high efficiency make it ideal for space-constrained applications, such as embedded computing and portable devices. Additionally, its wide input voltage range and precise output voltage regulation are beneficial for FPGA, ASIC, and microprocessor power supply applications.

Package

The LTM4623 is a µModule (micro-module) DC/DC step-down regulator. It comes in a compact 6.25mm x 6.25mm x 1.82mm LGA (Land Grid Array) package.