DESCRIPTION
The MP5990 is a fully integrated, PMBus
compatible, compact hot-swap protection
device. It contains a hot-swap controller and a
high-side power MOSFET (HS-FET), which
allow it to operate as a standalone device. The
MP5990 can also operate as a hot-swap
controller in parallel with the multi-phase
MP5991. The device can achieve up to 50A of
continuous output current (IOUT) per device at
room temperature, and up to 60A of continuous
IOUT with airflow.
The device limits the backplane voltage drop by
limiting the inrush current to the load while a
circuit card is inserted into a live backplane
power source. The MP5990 limits the internal
MOSFET current (IFET) by controlling the gate
voltage (VGATE) via the current limit (ILIMIT)
reference input and soft-start ramp.
The MP5990 provides many features to simplify
system design, such as an integrated current
mirror to monitor IOUT and integrated on-die
temperature-sensing. This eliminates the need
for an external current-sense power resistor,
power MOSFET, and temperature-sense device.
The MP5990 provides rich fault protections,
such as input voltage (VIN) over-voltage
protection (OVP), IOUT over-current protection
(OCP), short-circuit protection (SCP), and overtemperature protection (OTP). The MP5990
detects power MOSFET gate, source, and drain
short conditions. The fault status can be
indicated with the fault report output (GOK).
The MP5990 also provides VIN under-voltage
warning (UVW), output over-current warning
(D_OC) and power good (PG) indication.
The PMBus interface provides VIN, input current
(IIN), input energy (EIN), output voltage (VOUT),
IOUT, input power (PIN), and output power (POUT)
telemetry. The MP5990 monitors and reports
fault statuses through the PMBus interface.
The MP5990 is available in an LGA-45
(5mmx7mm) package.

FEATURES
• 4V to 16V Operating Input Voltage (VIN)
Range
• Maximum 50A of Output Current (IOUT)
• Supports 60A of IOUT with Air Flow
• 1mΩ Integrated Power MOSFET
• PMBus/I2C 1.3 Compatible
• ±1% IMON Reporting Accuracy
• Built-In MOSFET Driver
• Integrated Current-Sense with Sense Output
• Configurable Over-Current Limit
• Configurable Short-Circuit Current Limit
• Built-In Insertion Delay
• Configurable Soft Start (SS)
• Built-In Fuse Health Reporting
• Fault Signal Output (GOK)
• Power Good Indication (PG)
• VIN Under-Voltage Warning (UVW)
• Fault Type Indication (FLT_TYPE)
• Faults Auto-Record to the NVM
• VIN OVP, SCP, OCP, and OTP with Options
for No Action, Latch, Retry, or Hiccup Mode
• Intelli-Fuse Junction Temperature Monitoring
• Intelli-Fuse Controller
• Built-in NVM to Store Custom Configurations
• High Precision EIN, PIN, POUT, and IOUT
Reporting
• Configurable TON_DELAY and
TOFF_DELAY
• NVM Write Protection
• Available in an LGA-45 (5mmx7mm)
Package

APPLICATIONS
• Hot Swaps
• PC Cards
• Disk Drives
• Servers
• 5G Telecom
• Networking
• Laptops