IR3841WMPBF International Rectifier, IR3841WMPBF Datasheet - Page 5

• Manufacturer Part Number: IR3841WMPBF
• Description: HIGHLY EFFICIENT INTEGRATED 8A SYNCHRONOUS BUCK REGULATOR
• Manufacturer: International Rectifier

Electrical Specifications
Unless otherwise specified, these specification apply over 4.5V< V
Typical values are specified at T
Recommended Operating Conditions
Power Loss
Power Loss
MOSFET R
Top Switch
Bottom Switch
Reference Voltage
Feedback Voltage
Accuracy
Supply Current
V
V
V
V
Boot to SW
V
I
Fs
T
Under Voltage Lockout
V
V
Enable-Start-Threshold
Enable-Stop-Threshold
Enable leakage current
CC
cc
o
CC
CC
Rev 5.0
j
in
cc
o
Supply Current (Dyn)
Symbol
-Start-Threshold
-Stop-Threshold
Supply Current (Standby)
Parameter
ds(on)
Input Voltage
Supply Voltage
Supply Voltage
Output Voltage
Output Current
Switching Frequency
Junction Temperature
Definition
V
V
Enable_UVLO_Start
Enable_UVLO_Stop
Ien
CC
CC
_UVLO_Start
_UVLO_Stop
Symbol
R
R
I
CC(Standby)
I
ds(on)_Top
ds(on)_Bot
CC(Dyn)
P
a
V
loss
FB
= 25
o
C.
Vcc=5V, V
Fs=600kHz, L=1uH, Note4
V
V
0
-40
SS=0V, No Switching, Enable low
SS=3V, Vcc=5V, Fs=500kHz
Enable high
Vcc Rising Trip Level
Vcc Falling Trip Level
Supply ramping up
Supply ramping down
Enable=3.3V
Boot
cc
o
C<Tj<125
=5V, I
o
C<Tj<125
-V
sw
D
=5V, I
=10A,
in
Test Condition
=12V, V
o
C
D
o
Tj=25
C,
=10A,
Min
225
1.5
4.5
4.5
0.7
-40
Note3
0
o
=1.8V, I
o
Tj=25
C
o
C
o
=8A,
cc
<5.5V, V
0.9*Vin
Min
3.95
3.65
1.14
-1.0
-2.0
1650
0.9
Max
125
5.5
5.5
IR3841WMPbF
16
in
8
=12V, 0
TYP
17.8
4.15
3.85
1.5
8.5
0.7
1.2
1.0
12
o
C<T
j
< 125
MAX
26.5
10.7
+1.0
+2.0
4.35
4.05
1.36
1.06
500
15
Units
www.DataSheet4U.com
kHz
o
V
A
C
o
C.
Units
mΩ
mA
μA
μA
W
%
V
V
5