MP8030 Fully Integrated QFN-32

MP8030 Fully Integrated QFN-32

The MP8030 is a fully integrated, IEEE 802.3af/at/bt-compliant, Power over Ethernet (PoE), powered device (PD) power supply converter.

Key Specifications

Features

• Compliant with 802.3af/at/bt Specifications
• Internal Hot-Swap MOSFET for ≤51W Designs
• External FET with GATE1 for >51W Designs
• GATE2 N-Channel MOSFET Driver for Adapter Supply
• Supports Automatic Classification
• Automatic Maintain Power Signature Function
• EMI Reduction with Frequency Dithering
• Accurate Over-Voltage Protection (OVP) for Active-Clamp Forward without Isolated Sensing Based on the Appropriate MOSFET QG Selection (1)
• Ethernet Alliance (EA Gen 2) Certified
• Available in a QFN-32 (5mmx6mm) Package Optimized Performance with MPS Inductor MPL-AY Series

Typical Application Circuit

Applications

• IEEE 802.3af/at/bt-Compliant Devices
• Security Cameras
• Video and VoIP Phones
• WLAN Access Points
• Internet of Things (IoT) Devices

Design Notes

• Rail sequencing order and delay are part of the SoC power-up contract; a wrong order latches the processor even though every rail is in spec.
• In multiphase designs, current balance depends on the loop matching between phases, so keep the layout symmetric.
• Digital interfaces (PMBus, I²C) need pull-ups to the correct rail and a defined state during power-up.
• Thermal design is a system problem here: the PMIC sits next to the load it feeds, so budget the shared copper, not the package alone.

Common Questions