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IR3802MTRPBF Datasheet(PDF) 5 Page - International Rectifier

Part # IR3802MTRPBF
Description  HIGHLY INTEGRATED 4A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3802MTRPBF Datasheet(HTML) 5 Page - International Rectifier

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background image
11/04/08
5
PD-60356
IR3802MPBF
Recommended Operating Conditions
Parameter
Symbol
Test Condition
Min
TYP
MAX
Units
Power Loss
Power Loss
Ploss
Vcc=Vin=12V, Vc=24V, Vo=1.8V,
Io=4A, L=1.5uH, Note3
1.5
W
MOSFET Rds(on)
Top Switch
Rds(on)_Top
ID=6A, Tj(MOSFET)=25
oC
18
23
Bottom Switch
Rds(on)_Bot
ID=6A, Tj(MOSFET)=25
oC
18
23
m
Ω
Reference Voltage
Feedback Voltage
VFB
0.6
V
0
oC<Tj<105oC
-1.5
+1.5
%
Accuracy
-40
oC<Tj<105oC, Note2
-2.0
+2.0
%
Supply Current
VCC Supply Current (Static)
ICC(Static)
SS=0V, No Switching
10
13
VC Supply Current
(Static)
IC(Static)
SS=0V, No Switching
4.5
7
VCC Supply Current
(Dynamic)
ICC(Dynamic)
SS=3V, Vc=24V, Vcc=Vin=12V.
Vo=1.8V, Io=0A
15
22
VC Supply Current
(Dynamic)
IC(Dynamic)
SS=3V, Vc=24V, Vcc=Vin=12V.
Vo=1.8V, Io=0A
15
22
mA
Under Voltage Lockout
VCC-Start-Threshold
VCC_UVLO(R)
Supply ramping up
4.0
4.4
VCC-Stop-Threshold
VCC_UVLO(F)
Supply ramping down
3.7
4.1
VCC-Hysteresis
Supply ramping up and down
0.15
0.25
0.3
VC-Start-Threshold
VC_UVLO(R)
Supply ramping up
3.1
3.5
VC-Stop-Threshold
VC_UVLO(F)
Supply ramping down
2.85
3.25
VC-Hysteresis
Supply ramping up and down
0.15
0.2
0.25
V
Electrical Specifications
Unless otherwise specified, these specification apply over Vin=V
cc=Vc=12V, 0
oC<T
j(Ic)<105
oC.
Typical values are specified at T
a = 25
oC.
Symbol
Definition
Min
Max
Units
Vin
Input Voltage
2.5
21
Vcc
Supply Voltage
4.5
14
Vc
Supply Voltage
Vin + 5V
28
Vo
Output Voltage
0.6
12
V
Io Note1
Output Current
0
4
A
Tj
Junction Temperature
-40
125
oC


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