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19-6083; Rev 0; 12/11
MAX34565
12V Hot-Plug Switch in TDFN Package
General Description
The MAX34565 is a hot-plug controller for 12V power
rails. It is a completely integrated solution including the
required power-pass MOSFET device for 12V supplies.
During hot-plug, the device controls the supply output
voltage ramp (dV/dt) and limits the current at a user-
controlled level. The device also limits the output voltage
to protect downstream devices from overvoltage events.
The MAX34565 is offered in a latchoff version.
Applications
Features
S Completely Integrated Hot-Plug Functionality for
12V Power Rails
S On-Board Power MOSFET
S No High Power R SENSE Resistor Needed
S Adjustable Current Limit
S Adjustable Output Voltage Slew Rate
S Thermal Fault Indication
S Output Overvoltage Limiting
RAID/Hard Drives
Servers
Switches/Routers
PCI/PCI Express ?
InfiniBand TM/SM
Base Stations
S On-Board Thermal Protection
S On-Board Charge Pump
S Latchoff Version
Ordering Information appears at end of data sheet.
Functional Diagram
+12V
SUPPLY
V CC
UVLO
5V
REG
CHARGE
PUMP
CURRENT
68m ?
LOAD
ILIM
R ILIM
+12V
LOAD
LIMIT
MAX34565
OVERVOLTAGE
LIMIT
GND
VRAMP
EN/FAULT
17μA
V OHT
C VRAMP
1.4V
POR
BLANKING
THERMAL
LIMIT
V OLT
THERMAL RESET
PCI Express is a registered service mark of PCI-SIG Corp.
InfiniBand is a trademark and service mark of InfiniBand Trade Association.
For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX34565.related
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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