MP5515
Wide Input 2.7 - 18V, 5A, High-Efficiency
Bidirectional, Power Back-Up Manager
with Integrated Hot-Swap, I2C, ADC,
and Cap Health Test
MP5515 Rev. 1.02 www.MonolithicPower.com 1
1/18/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
DESCRIPTION
The MP5515 is an input power conditioning
PMIC targeting enterprise solid-state drives,
NVDIMM, and other applications with back-up
system requirements. The MP5515 consists of
input current limiting, input reverse current
blocking, and an MPS-patented, high-efficiency,
bidirectional, boost-buck converter with only
one inductor for energy storage and system
back-up power when there is an input power
failure. The MP5515 also provides I2C interface
and ADC. By using the I2C, users can set the
input current limit, slew rate, and perform cap
health tests. The MP5515 can also monitor
system status, such as input voltage, input
current, storage voltage, temperature, and
provide interrupt options for these features.
The internal input current-limit block prevents
inrush current during system start-up while the
reverse-current block prevents backup energy
from flowing to the failing VIN port. MPS’s
patented energy storage and release
management control circuit minimizes the
storage capacitor requirement. It pumps the
input voltage to a higher backup voltage and
releases the energy over a hold-up time to the
system bus voltage in case of an input outage.
The MP5515 requires a minimal number of
standard, external components and is available
in a 30-pin QFN (5mmx5mm) package.
FEATURES
Wide 2.7V-to-18V Operating Input Range
Up to 32V Programmable Storage Voltage
Up to 6A Programmable Input Current Limit
5A Buck Load Capability
Adjustable Slew Rate for VB Voltage Rising
Input Current Limiter with Integrated 14mΩ
MOSFET
Input Over-Voltage Protection (OVP)
Reverse-Current Protection (RCP)
Input Power Failure Indicator
Backup Capacitor Health Test
Comprehensive Voltage, Current,
Temperature Sensor ADC Conversion
Thermal Protection
Available in a QFN-30 (5mmx5mm)
Package
APPLICATIONS
Solid-State Drives (SSD)
NVDIMMs
Hard-Disk Drives
Power Back-Up Systems
