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IR3837MPBF Datasheet(PDF) 7 Page - International Rectifier

Part # IR3837MPBF
Description  HIGHLY INTEGRATED 14A SINGLE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3837MPBF Datasheet(HTML) 7 Page - International Rectifier

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7
IR3837MPbF
Rev 1.31
Electrical Specifications (continued)
PARAMETER
SYMBOL
TEST CONDITION
MIN
TYP
MAX
UNIT
FAULT PROTECTION
Fs=250kHz
10.4
11.8
13.2
Fs=500kHz
21.5
24.4
27.3
OCSET Current
IOCSET
Fs=1500kHz
68
77
86
µA
OC comp Offset Voltage
VOFFSET
Note4
-6
0
+6
mV
SS off time
SS_Hiccup
4096
Cycles
Thermal Shutdown
Note4
140
Thermal Hysteresis
Note4
20
°C
UNDER VOLTAGE LOCKOUT
VCC-Start-Threshold
VCC_UVLO_Start
Vcc Rising Trip Level
4.06
4.26
4.46
VCC-Stop-Threshold
VCC_UVLO_Stop
Vcc Falling Trip Level
3.76
3.96
4.16
V
Enable-Start-Threshold
Enable_UVLO_Start
Supply ramping up
1.14
1.2
1.36
Enable-Stop-Threshold
Enable_UVLO_Stop
Supply ramping down
0.75
0.85
0.95
V
Enable leakage current
Ien
Enable=3.3V
10
µA
PGOOD
Fb Rising, Vref < 1.2V
115
%Vref
Power Good upper Threshold
VPG(upper)
Fb Rising, Vref > 1.5V
115
%Vp
Upper Threshold Delay
VPG(upper)_Dly
Fb Falling
256/Fs
s
Fb Rising, Vref < 1.2V
85
%Vref
Power Good lower Threshold
VPG(lower)
Fb Rising, Vref > 1.5V
85
%Vp
Lower Threshold Delay
VPG(lower)_Dly
Fb Rising
256/Fs
s
Soft Start Delay Time
Tdelay(Delay)
Note4
10
ms
PGood Voltage Low
PG(voltage)
IPgood=-5mA
0.5
V
Tracker Comparator Upper
Threshold
VPG(tracker_upper) Vp Rising, Vref > 1.5V
0.5
Tracker Comparator Lower
Threshold
VPG(tracker_lower)
Vp Falling, Vref > 1.5V
0.3
V
Tracker Comparator Delay
Tdelay(tracker)
Vp Rising, Vref > 1.5V
256/Fs
s
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
Note5: Upgrade to industrial/MSL2 level applies from date codes 1141 (marking explained on application note AN1132 page 2).
Products with prior date code of 1141 are qualified with MSL3 for Consumer market.


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