LTM4618IV#PBF

Specifications

LTM4618IV#PBF Key Features

• Dual high current output, support independent or parallel connection

  • Provides two independent 8A output channels, the voltage of which can be adjusted separately, or connected in parallel to achieve higher current output (such as 16A per channel).

• Highly Integrated µModule Package

  • All key components (inductor, capacitor, MOSFET, compensation circuit) are packaged in the module, requiring only a few external components, greatly simplifying the power supply design process.

• Wide input voltage range

  • Supports input as low as 2.375V, suitable for power supply systems with multiple power rails (such as 3.3V, 5V).

• High conversion efficiency and low heat loss

  • The efficiency can reach 95%, which is suitable for high-density, high-performance circuit board design and reduces heat dissipation pressure.

• Flexible frequency adjustment and synchronization function

  • The operating frequency can be set via external resistors or synchronized to an external clock to reduce EMI interference and improve power supply consistency.

• Comprehensive protection mechanism

  • Built-in overvoltage protection, overcurrent protection, overheat protection and soft start functions ensure reliable system operation.

Typical application scenarios

The LTM4618IV#PBF is suitable for embedded and industrial systems that require high power supply accuracy, current capacity and space utilization:

• FPGA, ASIC, DSP power supply

  • Precision regulated, low noise output, ideal for powering core logic.

• Telecommunications and Network Equipment

  • Provides stable power supply for multi-channel communication chips or switching backplanes.

• Industrial and Automation Systems

  • Local regulated power supply for controllers, motor drive modules, and interface cards.

• Portable Instruments and Medical Devices

  • Save space while providing reliable power support.

• Embedded Servers and Edge Computing Nodes

  • Meet the power supply requirements of high-speed computing units for high current and low voltage.

Advantages comparison analysis

The LTM4618IV#PBF provides a plug-and-play high current power solution, significantly simplifying the engineering development process and improving system reliability.

Manufacturer Profile: Analog Devices (ADI)

Analog Devices is a world-leading manufacturer of high-performance analog and power management devices. Its µModule series products were developed by Linear Technology and integrate key components of high-efficiency power design to form a modular power system, which is widely used in high-end markets such as communications, industry, medical, and military. LTM4618 represents ADI’s leading technology level in the field of integrated power modules.

Why choose LTM4618IV#PBF?

● Each channel supports 8A high current output, up to 16A in total

● Fully integrated power module, no external inductor and compensation network required

● High efficiency + small package, suitable for compact design

● Support voltage programming, frequency adjustment and parallel output

● Rich protection functions to improve the stability of the power system

● Suitable for FPGA, ASIC, DSP, industrial platform and communication equipment

Frequently Asked Questions (FAQ)

Q1: Can LTM4618IV#PBF achieve two different output voltages?
Yes. LTM4618IV#PBF is a dual-channel, independently adjustable µModule step-down power module. The two output channels can be set to different voltage values (usually ranging from 0.8V to 5V, depending on the input voltage and load conditions). Each channel is equipped with an independent feedback pin (VFB) for setting the output voltage, which is convenient for powering processors, memories or peripherals with different voltage levels separately, suitable for multi-rail power supply applications. If necessary, it also supports connecting two channels in parallel to achieve higher output current.

Q2: Does the module support hot plugging?
In principle, hot plugging is not recommended. Although the LTM4618IV#PBF integrates a variety of protection functions, including input overvoltage protection, output overcurrent limiting, short-circuit protection, and thermal shutdown, to enhance system robustness, voltage transients, current surges, or ground bounce effects may still occur during module hot plugging, causing interference or even damage to peripheral circuits. To ensure system stability and device safety, it is recommended to perform plugging, replacement, or maintenance operations only when the system is completely powered off. If hot plugging scenarios must be supported, peripheral protection measures such as TVS tubes, surge suppressors, and hot plug control chips should be used to optimize them.

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