18V, 4.5A, High-Efficiency Energy Storage and Hot-swap Management Unit for enterprise PCIe/SAS SSD Applications

Learn about our Evaluation Kit
Talk to an Engineer or get a Quote
Upgrade to myMPS+

Product Description

MP5512 is a high-efficiency energy storage and management unit targeting solid-state and hard-disk drive applications. Its highly integrated input-current limit and energy storage and release management provide an efficient, compact system solution for SSD applications. The internal input-current-limit block with dv/dt control prevents an inrush current during system start-up. The bus voltage start-up slew rate is programmable; it includes a power-on-reset function for hot-swapping. MPS?patented energy-storage and release-management control circuit minimizes the storage capacitor requirement. It boosts the input voltage to a higher storage voltage and releases the energy over a hold-up time in case of an input outage. The storage voltage and the release voltage are both programmable for different system applications. The MP5512 requires a minimal number of standard, external components and is available in a 28-pin QFN (4mm?mm) package.

Product Features

  • Wide 4V-to-18V Operating Input Range
  • Programmable Storage Voltage Up to 40V
  • Programmable Input-Current Limit Up to 4.5A
  • Input Reverse-Current Protection
  • Adjustable dv/dt Slew Rate for Bus Voltage Start-up
  • 14m? MOSFET for Input Hot-swap
  • Internal 140m? and 110m? Power Switches for Energy-Storage and Release-Management Circuits
  • VB Power-Good Indicator
  • Input-Failure Indicator and Input-Early Warning for VIN Voltage
  • ?% Input-Current Limit at 2A
  • 0.1uF Input capacitor for Hot-swap
  • Thermal Protection
  • Available in a QFN28 (4mm?mm) Package


  • Vfb (V)0.8
  • Vin (min) (V)4
  • Vin (max) (V)18
  • Vs (max) (V)40
  • Vbus (max) (V)18
  • Irelease (A)3
  • Icharge (A)0.96
  • Iq (typ) (mA)1
  • Regulated Outputs1
  • GradeCatalog
  • Step-Down Converter Current (A)4.5
  • Special FeaturesCurrent Monitoring, Inrush Current Limiting, Power-On Reset, Reverse-Current Protection
  • SSExternal
  • PGYes

Evaluation Kit


Kit details

EV5512-V-00A Evaluation Board is designed to demonstrate the capabilities of MP5512. MP5512 is one front end power storage and management IC for SSD application.

MP5512 supports input hot-swap, input reverse current protection, input power failure indication and high efficient power backup for SSD data backup in case of input power failure. MP5512’s built-in boost mode converter charges storage bulk capacitor to a programmed voltage when system is powered up, and in case of input power failure, MP5512 flags the power failure, disconnects input power and transfers the energy from storage capacitor to SSD system’s DCDC switches via built-in buck mode converter to support SSD system data backup.

MP5512 is available in QFN28-4x5mm package.

US$ 25.00 + tax