EN5311QI

EN5311QI Specifications

Manufacturer: Intel (formerly Enpirion)
Part Number: EN5311QI
Product Type: DC-DC Step-Down Converter with Integrated Inductor
Input Voltage Range: 2.4V to 6.6V
Output Voltage Range: 0.6V to 6V
Maximum Output Current: 1A
Switching Frequency: 4 MHz
Efficiency: Up to 95%
Package / Case: 20-QFN (5mm x 4mm x 1.1mm)
Mounting Type: Surface Mount
Operating Temperature Range: -40°C to +85°C
Control Features: 3-Pin VID Output Voltage Select, Enable Pin
Protection Features: Overcurrent Protection, Thermal Shutdown, Undervoltage Lockout
RoHS Status: RoHS Compliant
End-of-Life Status: Scheduled for obsolescence and will be discontinued by the manufacturer.

Key Features

The EN5311QI is a highly integrated PowerSoC DC-DC converter designed for space-constrained applications. It incorporates a 1A synchronous buck regulator with an integrated inductor, simplifying design and reducing external component count. Operating over a wide input voltage range of 2.4V to 6.6V, it delivers an adjustable output voltage from 0.6V to 6V. The high switching frequency of 4 MHz allows for the use of small external capacitors, resulting in a compact solution footprint. With an efficiency of up to 95%, it ensures minimal power loss and heat generation. The device also features a 3-pin VID for dynamic output voltage selection, enabling on-the-fly voltage scaling to optimize power consumption.

Applications

Area-constrained applications
Noise-sensitive applications such as audio/video and RF systems
LDO replacement for improved thermal performance
Set-top boxes and home gateways
Smartphones and PDAs
VoIP and video phones
Personal media players

Product Overview

The EN5311QI is engineered to provide a complete power conversion solution in a miniature package, making it ideal for applications where board space and profile are critical. Its integrated inductor and high switching frequency minimize the need for external components, simplifying PCB layout and reducing design complexity. The device’s excellent transient response and low output ripple voltage make it suitable for noise-sensitive applications. Additionally, its robust protection features, including overcurrent protection, thermal shutdown, and undervoltage lockout, enhance system reliability. Designers should note the product’s end-of-life status and consider alternative solutions for new designs.

Contact Us

For additional information regarding our products, feel free to get in touch with us. You can call us at 770-870-1760 or email us at info@Cyndtek.com. We look forward to assisting you and ensuring your satisfaction with all of our Cyndtek products.