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International Rectifier Electronic Components Datasheet

IR3624MPBF Datasheet

HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER

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Data Sheet No.PD94714 revA
IR3624MPBF
HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER
Features
Internal 600kHz Oscillator
Operates with Single 5V or 12V Supply
Programmable Over Current Protection
Hiccup Current Limit Using MOSFET RDS(on)
sensing
Precision Reference Voltage (0.6V)
Programmable Soft-Start
Pre-Bias Start-up
Thermal Protection
10-Lead MLPD Package
Applications
Embedded Telecom Systems
Distributed Point of Load Power Architectures
Computing Peripheral Voltage Regulator
Graphics Card
General DC/DC Converters
Description
The IR3624 is a PWM controller designed for
high performance synchronous Buck DC/DC
applications. The IR3624 drives a pair of external
N-MOSFETs using a fixed 600kHz switching
frequency allowing the use of small external
components. The output voltage can be precisely
regulated using the internal 0.6V reference
voltage for low voltage applications. Protection
such as Pre-Bias startup, hiccup current limit and
thermal shutdown are provided to give required
system level security in the event of fault
conditions.
Vin
Vcc
Vc
HDrv
OCSet
U1
Comp
LDrv
PGnd
SS / SD
Gnd
Fb
Fig. 1: Typical application Circuit
ORDERING INFORMATION
PKG PACKAGE
DESIG DESCRIPTION
M IR3624MPBF
M IR3624MTRPBF
PIN
COUNT
10
10
PARTS
PER TUBE
121
--------
PARTS
PER REEL
-------
3000
T&R
ORIANTAION
Figure A
Vout


International Rectifier Electronic Components Datasheet

IR3624MPBF Datasheet

HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER

No Preview Available !

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IR3624MPBF
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND)
Vcc Supply Voltage ................................................… -0.5V to 16V
Vc Supply Voltage …………………………………….. -0.5V to 30V
Storage Temperature Range ..................................... -65°C To 150°C
Operating Junction Temperature Range ................... -40°C To 150°C
ESD Classification …………………………………..… JEDEC, JESD22-A114
Moisture Sensitivity Level ……………………………. JEDEC Level 1 @ 260oC
Caution: Stresses above those listed in “Absolute Maximum Rating” may cause permanent damage to the
device. These are stress ratings only and function of the device at these or any other conditions beyond those
indicated in the operational sections of the specifications is not implied. Exposure to “Absolute Maximum Rating”
conditions for extended periods may affect device reliability.
Package Information
VCC 1
LDrv 2
PGnd 3
HDrv 4
VC 5
Exposed Pad
10 OCSet
9 SS/SD
8 Gnd
7 Comp
6 Fb
10-Lead MLPD, 3x3mm
ΘJA = 33o C/W *
ΘJC = 2.1o C/W
*Exposed pad on underside is connected to a copper
pad through vias for 4-layer PCB board design
2


Part Number IR3624MPBF
Description HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER
Maker International Rectifier
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