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ERJ-3EKF7501V Datasheet(PDF) 4 Page - International Rectifier

Part # ERJ-3EKF7501V
Description  Dual output, 6A/Phase, Highly Integrated SupIRBuck
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

ERJ-3EKF7501V Datasheet(HTML) 4 Page - International Rectifier

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IR3892
4
www.irf.com
© 2013 International Rectifier
August 02, 2013
PIN DESCRIPTIONS
PIN #
PIN NAME
PIN DESCRIPTION
1, 9
Vsns 1/2
Sense pins for over-voltage protection and PGood. A resistor divider
with the same ratio as the respective feedback resistor divider should be
connected between each Vsns pin and its respective Vout.
2, 8
EN 1/2
Enable pins for turning on and off the regulator.
3
Vin
Input voltage for Internal LDO. A 1.0µF capacitor should be connected
between this pin and PGnd. If external supply is connected to VCC pin,
this pin should be shorted to VCC pin.
4
VCC/LDO_out
Input Bias Voltage, output of the internal LDO. Place a minimum 2.2µF
cap from this pin to PGnd.
5
GND
Signal ground for internal reference and control circuitry.
6
Seq
Input to error amplifier for sequencing purposes. Can be left floating for
non-sequencing applications. It is only connected to the Error-Amplifier
of channel 2.
7
Rt/Sync
Multi-function pin to set switching frequency. Use an external resistor
from this pin to Gnd to set the free-running switching frequency. Or use
an external clock signal to connect to this pin through a diode, the
device’s switching frequency is synchronized with the external clock.
10, 31
FB 2/1
Inverting inputs to the error amplifiers. These pins are connected directly
to the outputs of the regulator via resistor dividers to set the output
voltages and provide feedback to the error amplifiers.
11, 30
Comp 2/1
Output of the error amplifiers. External resistor and capacitor networks
are typically connected from these pins to its respective Fb pin to provide
loop compensation.
12, 29
PGood 2/1
Power Good status pins are open drain outputs. The pins are typically
connected to VCC via pull up resistors.
13, 28
Boot 2/1
Supply voltages for high side drivers, 100nF capacitors should be
connected between these pins and their respective SW pin.
14, 15, 26,
27
PVin 2/1
Input voltage for power stage.
16, 17, 18,
23, 24, 25
PGnd 2/1
Power Ground. These pins serve as a separated ground for the
MOSFET drivers and should be connected to the system’s power ground
plane.
19, 20, 21,
22
SW 2/1
Switch nodes. These pins are connected to the output inductors.


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