EN6347QI

EN6347QI – 4A Non-Isolated PoL DC-DC Converter Module – Altera Enpirion®
The EN6347QI from Altera is a high-efficiency, non-isolated Point-of-Load (PoL) DC-DC converter module designed to deliver stable, clean power directly to sensitive ICs like FPGAs, ASICs, or processors in space-constrained commercial applications. Part of the renowned Enpirion® series, this compact module integrates essential control and protection features, simplifying power design while maximizing reliability. PCX ensures genuine Altera components are delivered swiftly to support your project timelines.

Key Features

High Current Output: Delivers up to 4A continuous current.
Wide Adjustable Output: Configurable from 0.6V to 6.24V to match load requirements.
Broad Input Range: Operates from 2.5V to 6.6V input voltage.
Exceptional Efficiency: Achieves up to 95% efficiency, reducing power loss and heat generation.
Robust Protection: Features OCP (Overcurrent), OTP (Overtemperature), SCP (Short Circuit), and UVLO (Undervoltage Lockout).
Remote Control: Enable/Disable (Active High) functionality via remote On/Off pin.
Compact Design: Ultra-small 38-FQFN package (7.0mm x 4.0mm x 1.9mm) for high-density PCB layouts.

Technical Details
This single-output, non-isolated PoL module provides precise voltage regulation critical for modern digital circuits. It utilizes a surface-mount 38-FQFN exposed pad package for optimal thermal performance and mechanical stability. Engineered for commercial ITE (Information Technology Equipment) environments, it operates reliably across an industrial temperature range of -40°C to +85°C. The integrated control features, including Enable (Active High), facilitate sophisticated power sequencing and management within complex systems.

Applications

FPGA and ASIC core/auxiliary power supplies
High-performance computing motherboards
Networking and communication equipment (switches, routers)
Data storage systems and server blades
Embedded computing modules and industrial controllers

About Altera (Intel® Programmable Solutions Group)
Altera, now operating as the Intel® Programmable Solutions Group (PSG), is a global leader in programmable logic devices (FPGAs, CPLDs), embedded processors, and associated power solutions like the Enpirion® series. For decades, Altera has been synonymous with innovation, delivering high-performance, reliable semiconductor solutions that push the boundaries of technology.
Their Enpirion® power products, including this EN6347QI module, are specifically engineered to meet the stringent power integrity demands of advanced programmable logic and processing systems. Altera/Intel PSG is renowned for rigorous quality standards, comprehensive technical documentation, and solutions trusted in mission-critical commercial and industrial applications worldwide. PCX is proud to supply authentic Altera components.

About Non-Isolated PoL DC-DC Converters
Non-Isolated Point-of-Load (PoL) DC-DC converters are essential components in modern electronics, designed to step down a system’s main DC voltage rail to the precise, lower voltages required by individual integrated circuits (ICs) like CPUs, FPGAs, or memory directly at their point of use. This “point-of-load” placement minimizes voltage drop, noise, and improves transient response compared to centralized power supplies.
Non-isolated PoL modules, like the EN6347QI, do not provide electrical isolation between input and output but offer significant advantages in efficiency, power density, and cost-effectiveness for applications where isolation isn’t mandatory (like within a single PCB’s low-voltage domain). They simplify power system design by integrating the controller, switches, inductor, and compensation into a single, easy-to-use module, significantly reducing design complexity and time-to-market for power-sensitive applications such as computing, networking, and embedded systems.

Packaging Options
This EN6347QI is available for purchase in industry-standard packaging formats suitable for prototyping and volume production: Tape & Reel (TR) and Cut Tape (CT). PCX provides flexible ordering quantities to meet your specific needs.

Frequently Asked Questions (FAQs)
Q: Is the EN6347QI still suitable for new designs despite being marked obsolete?
A: While Altera has marked the EN6347QI as obsolete for new designs, it remains a reliable solution for existing product lines, legacy system maintenance, repairs, and prototyping where its specific performance characteristics are required. PCX maintains stock to support these needs.

Q: What does “Non-Isolated” mean for this PoL module?
A: Non-isolated means there is no electrical isolation barrier (like a transformer) between the input and output circuits. The input and output share a common ground. This is common and acceptable for powering loads on the same PCB where isolation from the main input source is handled elsewhere.

Q: How do I control the output voltage?
A: The output voltage (0.6V to 6.24V) is typically set using external resistor dividers connected to the feedback pin. Refer to the detailed configuration instructions in the official EN6347QI datasheet hosted on PCXCo.com for specific resistor values and design guidelines.

Q: What is the purpose of the Remote On/Off (Enable) pin?
A: The Enable pin (Active High) allows an external signal (typically from a system controller or sequencer) to turn the module’s output on or off. This is crucial for power sequencing in complex systems to ensure different voltage rails power up in the correct order.

Q: Can this module operate in high-temperature environments?
A: Yes, the EN6347QI is rated for operation over a wide industrial temperature range of -40°C to +