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IR3831MPBF Datasheet(PDF) 7 Page - International Rectifier

Part # IR3831MPBF
Description  HIGHLY EFFICIENT INTEGRATED SYNCHRONOUS BUCK REGULATOR FOR DDR APPLICATIONS
PDF  31 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3831MPBF Datasheet(HTML) 7 Page - International Rectifier

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11/05/10
7
IR3831MPbF
Parameter
SYM
Test Condition
Min
TYP
MAX
Units
Thermal Shutdown
Thermal Shutdown
Note4
140
Hysteresis
Note4
20
oC
Power Good
Power Good upper
Threshold
VPG+
Fb Rising
470
515
560
mV
Delay Comparator
Threshold
PG(Delay)
Relative to charge voltage, SS rising
2
2.1
2.3
V
Delay Comparator
Hysteresis
Delay(hys)
Note4
260
300
340
mV
PGood Voltage Low
PG(voltage)
IPGood=-5mA
0.5
V
PGood Comparator
Dealy
PG(Delay)
256/Fs
s
Leakage Current
Ileakage
0
10
μA
Switch Node
SW=0V, Enable=0V
3
SW Bias Current
Isw
SW=0V,Enable=high,SS=3V,Vp=0V,
Note4
40
μA
Note3: Cold temperature performance is guaranteed via correlation using statistical quality control. Not tested in production.
Note4: Guaranteed by Design but not tested in production.
Electrical Specifications (continued)
Unless otherwise specified, these specification apply over 4.5V< V
cc<5.5V, Vp=0.6V, Vin=12V,
0oC<T
j< 125
oC. Typical values are specified at T
a = 25
oC.



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