Intel Enpirion EN5339QI 3A Step-Down DC-DC PowerSoC with Integrated Inductor in Ultra-Compact QFN Package

EN5339QI Product Overview

The EN5339QI is a highly integrated, low-profile, high-efficiency step-down DC-DC PowerSoC from Intel's Enpirion® 5300 series. This device integrates the controller, power MOSFETs, inductor, and compensation network into a tiny 24-pin QFN package. As a non-isolated Point-of-Load (PoL) converter, it is specifically designed for high-performance applications with stringent space and efficiency requirements, such as FPGAs, DSPs, ASICs, and SSDs. The EN5339QI is a versatile power solution.

The EN5339QI's core advantages lie in its ultra-high power density and minimal footprint. It supports a wide input voltage range of 2.4V to 5.5V, offers an adjustable output from 0.6V to 4.6V, and delivers up to 3A of continuous current. The total solution footprint is only 55mm² with a 1.1mm low profile, making it ideal for ultra-thin designs. This industrial-grade device (-40°C to 85°C) comes in a 6mm x 4mm 24-QFN package. The EN5339QI is a versatile power solution.

The Enpirion solution significantly simplifies board design, layout, and manufacturing, reducing system complexity and cost. The EN5339QI is ideal for space-, efficiency-, and noise-critical distributed power architectures, widely used in SSDs, embedded computing, SAN/NAS accelerators, and communications equipment. The EN5339QI is a versatile power solution.

EN5339QI Core Features

Highly Integrated and Ultra-Compact: Integrates controller, MOSFETs, inductor, and compensation in one package. Total solution footprint is only 55mm² with 1.1mm height. The EN5339QI is a versatile power solution.

High Conversion Efficiency: Delivers up to 95% peak efficiency over a wide load range. The EN5339QI is a versatile power solution.

Wide Input and Adjustable Output: Supports 2.4V to 5.5V input. Output voltage is adjustable from 0.6V to 4.6V using an external resistor divider. The EN5339QI is a versatile power solution.

Low Output Ripple and Noise: Typical output ripple <5mVp-p with integrated inductor for noise-sensitive applications. The EN5339QI is a versatile power solution.

Comprehensive Protection and Monitoring: Features UVLO, OCP, SCP, and OTP protection. Includes enable pin and Power OK signal for power sequencing. The EN5339QI is a versatile power solution.

High Reliability: MTBF of 280,000 years for long-term stability. The EN5339QI is a versatile power solution.

Industrial Temperature Range: Supports -40°C to +85°C for harsh environments. The EN5339QI is a versatile power solution.

Package and Compliance: 24-pin QFN (6mm x 4mm x 1.1mm), MSL Level 3 (168 hours), RoHS compliant. The EN5339QI is a versatile power solution.

EN5339QI Applications

SSD and Embedded Computing: Ideal 1.1mm low-profile power solution for SSDs and compact embedded systems. The EN5339QI is a versatile power solution.

Point-of-Load Regulation for FPGAs, DSPs, and ASICs: Provides core power for high-end FPGAs, DSPs, and ASICs. The EN5339QI is a versatile power solution.

Storage and Networking Accelerators: Used in SAN/NAS accelerators, RAID controllers, and network processors. The EN5339QI is a versatile power solution.

Noise-Sensitive Applications: Low output ripple makes it ideal for communications equipment and test instruments. The EN5339QI is a versatile power solution.

Key Advantages

"Power System-on-Chip" Simplifies Design: Integrates complex inductor and compensation networks internally. Enables high-performance power design with minimal external components and engineering effort. The EN5339QI is a versatile power solution.

Unmatched Small Footprint: Only 55mm² footprint and 1.1mm height provide one of the smallest 3A power modules available. The EN5339QI is a versatile power solution.

High Switching Frequency and Transient Performance: 3.2MHz switching frequency allows small MLCC capacitors and provides excellent transient response. The EN5339QI is a versatile power solution.

Streamlined Supply Chain: One component provides the complete power solution, reducing vendor management complexity and total system cost. The EN5339QI is a versatile power solution.

Proven Enpirion Ecosystem: Backed by Intel's Enpirion brand, offering robust reliability and comprehensive technical support, including reference designs and simulation tools. The EN5339QI is a versatile power solution.

Why Choose QIXINWEI

Years of experience in the electronics industry. Trusted by global customers.

Massive In-Stock Inventory – Ready to ship promptly

BOM Matching Service – One-stop solution, save time

PCBA Customization – Professional engineering team creates tailor-made solutions based on your needs

Cost-Effective & Efficient – Better channel, better cost

A dedicated team makes your procurement smoother.

Contact us for BOM quotes or PCBA inquiries