MP5505E 2.7-7V, 4A Energy Storage and Management Unit QFN-20

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MP5505E 2.7-7V, 4A Energy Storage and Management Unit QFN-20

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MPS QFN-20 Power Management Power Management ICs (PMIC)

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MP5505E 2.7-7V, 4A Energy Storage and Management Unit QFN-20

The MPS MP5505E is a Energy Storage and Management Unit. It operates from a 2.7 V to 7 V input and is rated for 4 A. It is supplied in a QFN-20 package.

The MP5505E is a lossless energy storage and management unit targeted toward solid-state and hard-disk drive applications.

Key Specifications

Part Number	MP5505E
Function	Energy Storage and Management Unit
Input Voltage	2.7 V to 7 V
Current Rating	4 A
Package	QFN-20
Ordering Codes	MP5505E

Features

Wide 2.7V to 7V Operating Input Range
Input Current Limiter with Integrated 60mΩ MOSFET
Up to 4.5A Input Current Limit
Reverse-Current Protection
6V Bus Clamping Voltage
Power-On Reset
Adjustable dV/dt Slew Rate for Bus Voltage Start-Up
Internal 30mΩ Disconnect Switch
Internal 70mΩ and 60mΩ Power Switches for Energy Storage and Release Management Circuits
Thermal Protection

Typical Application Circuit

Applications

Solid-State Drives (SSD)
Hard-Disk Drives

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.