ir3820 International Rectifier Corp., ir3820 Datasheet - Page 6

• Manufacturer Part Number: ir3820
• Description: Wide-input Voltage, Synchronous Buck Regulator
• Manufacturer: International Rectifier Corp.

11/04/08
Note1: Continuous output current determined by input and output voltage setting and the thermal environment.
Note2: Cold temperature performance is guaranteed via correlation using statistical quality control. Not tested in production.
Note3: Guaranteed by Design but not tested in production.
Parameter
Oscillator
Error Amplifier
Source/Sink Current
Power Good
Vsns Low Trip Point
Hysteresis
PGood Output Low
Voltage
Input Bias Current
Over Current Protection
OCSET Current
Hiccup Current
Hiccup Duty Cycle
Thermal Shutdown
Thermal Shutdown
Threshold
Thermal Shutdown
Hysteresis
Frequency
Ramp Amplitude
Min Pulse Width
Max Duty Cycle
Input Bias Current
Input Bias Current
Transconductance
Soft Start/SD
Soft Start Current
Shutdown Output
Threshold
I(source/Sink)
Hiccup(duty)
PGood(Hys)
PG(voltage)
Vsns(trip)
D
SYM
I
I
V
D
Isns
OCSET
Hiccup
min(ctrl)
I
I
SD
F
I
ramp
FB1
FB2
gm
max
SS
S
Note3
Note3
SS=3V
SS=0V
SS=0V
Vsns Ramping Down
I
Note3
I
Note3
Note3
Fb=0V
PGood
Hiccup
=4mA
/ I
Test Condition
SS
,
Note3
Min
0.35
1000
540
75
20
50
15
15
15
0
TYP
1.25
0.38
27.5
0.25
140
1300
600
-0.1
0.3
20
80
35
70
20
20
15
3
IR3820MPbF
MAX
0.25
0.41
-0.5
1600
660
0.5
50
90
28
40
26
1
PD-60329
Units
μmho
kHz
mV
μA
μA
μA
μA
ns
o
%
%
V
V
V
V
C
6