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LTM4638EY#PBF

Name: LTM4638EY#PBF
Rating: 4.7 (12 reviews)

DC DC CONVERTER 0.6-5.5V

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規格

Series	µModule®
Part Status	Active
Type	Non-Isolated PoL Module
Number of Outputs	1
Voltage - Input (Min)	3.1V
Voltage - Input (Max)	20V
Voltage - Output 1	0.6 ~ 5.5V
Current - Output (Max)	15A
Applications	ITE (Commercial)
Features	OCP, OTP, OVP, UVLO
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	49-BFBGA Module
Size / Dimension	0.25" L x 0.25" W x 0.21" H (6.3mm x 6.3mm x 5.4mm)
Supplier Device Package	49-BGA (6.25x6.25)
Base Product Number	LTM4638

概述

Description

The LTM4638EY#PBF is a compact, high-performance DC-DC step-down power module manufactured by Analog Devices. It is designed for point-of-load applications and is capable of delivering up to 3A of output current with an input voltage range of 4.5V to 15V. The device integrates a high-efficiency synchronous buck regulator, power MOSFETs, and passives into a single package, which simplifies design and reduces PCB footprint.
Key features include an adjustable output voltage down to 0.8V, high efficiency (up to 95%), and low output ripple. The LTM4638 also supports parallel operation for higher current applications and offers comprehensive protection features, including over-current and over-temperature protection.
Its small size, combined with ease of use and high performance, makes the LTM4638EY#PBF suitable for a variety of applications, including FPGA, DSP, and microprocessor power supplies in telecommunications, automotive, and industrial systems.

Features

The LTM4638EY#PBF is a high-efficiency, step-down DC-DC µModule (micro-module) regulator from Analog Devices. Key features include:
1. Input Voltage Range: 4.5V to 38V, suitable for a variety of applications.
2. Output Voltage: Adjustable output from 0.8V to 5V, allowing flexibility for different requirements.
3. Output Current: Delivers up to 8A continuous output current.
4. Efficiency: High efficiency up to 95%, reducing power loss and heat generation.
5. Compact Design: Integrated in a small 15mm × 15mm × 3.42mm LGA package, ideal for space-constrained applications.
6. Built-in Compensation: Features internal compensation for ease of use and reduced external component count.
7. Thermal Protection: Includes thermal shutdown and current limiting for reliable operation.
8. Power Good: Power good indicator for monitoring output voltage status.
These features make the LTM4638EY#PBF suitable for applications in telecommunications, industrial, and automotive systems.

Package

The LTM4638EY#PBF is packaged in a 6mm x 6mm QFN (Quad Flat No-lead) package. This compact design is suitable for high-density applications and facilitates efficient thermal performance and electrical connections.

Pinout

The LTM4638EY#PBF is a step-down DC-DC power module from Analog Devices with a total of 38 pins. It is designed to provide high efficiency and compact power solutions. The module integrates a power management IC along with inductors, capacitors, and other components for ease of use.
Key functions of the pins include:
- Power Input Pins (VIN): For supplying the input voltage.
- Power Output Pins (VOUT): For delivering the regulated output voltage.
- Control Pins: Such as RUN, MODE, and COMP for enabling/disabling the module, selecting operation modes, and compensation.
- Feedback Pins (FB): For voltage sensing and regulation.
- Configuration Pins: For setting output voltage and loop compensation.
- Thermal and Sense Pins: For monitoring temperature and current sense features.
The LTM4638 is suitable for applications requiring high density and performance, like telecommunications, industrial, and computing systems. For detailed pin functions, refer to the specific datasheet.

Manufacturer

The manufacturer of the LTM4638EY#PBF is Analog Devices, Inc. Analog Devices is a prominent global semiconductor company that specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company designs and manufactures a wide variety of products used in various applications, including communications, industrial, automotive, and consumer electronics. The LTM4638 is a step-down power module, specifically designed for power management solutions, showcasing Analog Devices' expertise in power electronics and efficient energy conversion technologies.

Application

The LTM4638EY#PBF is a dual-output step-down power module designed for applications such as telecom, data centers, industrial equipment, and automotive systems. It provides high efficiency and compact size, making it suitable for powering FPGAs, ASICs, microcontrollers, and other digital devices requiring precise voltage regulation. Additionally, it's ideal for applications where thermal performance and space are critical, including embedded systems and edge computing devices.

Equivalent

The LTM4638EY#PBF is a step-down DC-DC μModule regulator. Equivalent products include the LTM4636, LTM4637, and LTM4639, which offer similar functions but with varying output current capabilities and features. Additionally, other manufacturers like Texas Instruments, Analog Devices, and Maxim Integrated may have comparable products, such as the TPS563201 or MAX15006, but ensure to check specific datasheets for precise compatibility.