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RK73H1J4R99F Datasheet(PDF) 9 Page - International Rectifier

Part # RK73H1J4R99F
Description  6A HIGHLY INTEGRATED WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

RK73H1J4R99F Datasheet(HTML) 9 Page - International Rectifier

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9
IR3863MPBF
8/8/2012 Rev3.2
Figure 8: Startup
Figure 9: Shutdown
Figure 10: DCM (I
OUT = 0.1A)
Figure 11: CCM (I
OUT = 5A)
Figure 12: Over Current Protection
(tested by shorting VOUT to PGND)
Figure 13: Over Voltage Protection
(tested by shorting FB to VOUT)
EN
PGOOD
SS
VOUT
EN
PGOOD
SS
VOUT
VOUT
PHASE
i
L
VOUT
PHASE
i
L
PGOOD
SS
IOUT
PGOOD
FB
VOUT
i
L
5V/div 5V/div 1V/div 500mV/div
5ms/div
5V/div 5V/div 1V/div 500mV/div
1ms/div
20mV/div 10V/div 500mA/div
5µs/div
20mV/div 10V/div 2A/div
2µs/div
5V/div 1V/div 500mV/div 2A/div
50µs/div
5V/div 1V/div 1V/div 5A/div
500us/div
VOUT
TYPICAL OPERATING DATA
Tested with demoboard shown in Figure 7, VIN = 12V, VCC = 5V, VOUT = 1.05V, Fs = 300kHz, T
A = 25
oC, no
airflow, unless otherwise specified


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