IR3629 International Rectifier Corp., IR3629 Datasheet - Page 5

• Manufacturer Part Number: IR3629
• Description: High Frequency Synchronous Pwm Buck Controller With Power Good Output
• Manufacturer: International Rectifier Corp.

Recommended Operating Conditions
Note1:
The junction temperature for 5V application is 0
Electrical Specifications
Unless otherwise specified, these specification apply over V
Typical value are specified at Ta=25
11/29/2007
Accuracy
Feedback Voltage
Accuracy
Supply Current
V
V
Under Voltage Lockout
V
V
V
V
V
V
Oscillator
Frequency
Ramp Amplitude
Min Duty Cycle
Min Pulse Width
Max Duty Cycle
T
Symbol
C
C
V
V
CC
CC
CC
C
C
C
j
CC
Supply Current
Supply Current
CC
(Note1)
-Start-Threshold
-Stop-Threshold
-Hysteresis
-Start-Threshold
-Stop-Threshold
-Hysteresis
V
Parameter
V
Supply Current
cc
Supply Current
c
(Dynamic)
(
Dynamic)
(Static)
(Static)
Junction Temperature
Supply Voltage
Supply Voltage
Definition
V
V
V
V
V
V
CC
CC
CC
C
C
C
_UVLO(R)
_UVLO(F)
_Hys
I
_UVLO(R)
_UVLO(F)
_Hys
I
CC(Dynamic)
I
C(Dynamic)
D
CC(Static)
I
SYM
C(Static)
V
D
D
min(ctrl)
V
F
ramp
max
min
FB
S
o
C
o
C-125
0
-40
SS=0V, No Switching
IR3629, C
IR3629A, C
SS=0V, No Switching
IR3629, C
IR3629A, C
Supply ramping up
Supply ramping down
Supply ramping up and down
Supply ramping up
Supply ramping down
Supply ramping up and down
IR3629A
IR3629
Note3
Fb=1V
IR3629, Note3
IR3629A , Note3
IR3629, Fb=0.5V
IR3629A, Fb=0.5V
o
C<Tj<125
o
Converter voltage + 5V
C<Tj<105
o
Test Condition
C
LOAD
LOAD
LOAD
LOAD
o
C
Min
o
=1.5nF
=1.5nF
4.5
-40
C,
=1.5nF
=1.5nF
cc
Note2
=V
IR3629/IR3629A MPbF
c
=12V, 0
o
C<T
Min
0.15
2.85
0.15
-1.5
-2.5
270
540
4.0
3.7
3.1
71
78
j
< 105
Max
125
TYP
0.25
3.05
1.25
14
28
o
300
600
0.6
4.2
3.9
3.3
0.2
4.5
15
10
10
15
17
C
MAX
+1.5
+1.5
3.25
0.25
330
660
160
4.4
4.1
0.3
3.5
13
25
19
25
15
80
7
0
Units
o
Units
V
V
C
kHz
mA
ns
%
%
%
V
V
V
5