ir3840 International Rectifier Corp., ir3840 Datasheet - Page 8

• Manufacturer Part Number: ir3840
• Description: Integrated 12a Synchronous Buck Regulator
• Manufacturer: International Rectifier Corp.

TYPICAL OPERATING CHARACTERISTICS (-40
02/09/09
240.0
220.0
200.0
180.0
701.0
700.5
700.0
699.5
699.0
698.5
698.0
697.5
697.0
696.5
696.0
510.0
508.0
506.0
504.0
502.0
500.0
498.0
496.0
494.0
492.0
490.0
4.36
4.34
4.32
4.30
4.28
4.26
4.24
4.22
4.20
1.240
1.235
1.230
1.225
1.220
1.215
1.210
1.205
1.200
-40
-40
-40
-40
-40
-20
-20
-20
-20
-20
0
0
0
0
0
Enab le (UV LO) Star t
V cc(UV LO) Star t
20
Icc(Stan db y)
20
20
20
FREQUENCY
20
V fb
T e m p [o C]
T e m p [oC]
T e m p[o C]
Te m p[o C]
Te m p [oC]
40
40
40
40
40
60
60
60
60
60
80
80
80
80
80
100
100
100
100
100
120
120
120
120
120
50.6
50.4
50.2
50.0
49.8
49.6
49.4
49.2
49.0
48.8
48.6
19.0
18.0
17.0
16.0
15.0
24.0
23.5
23.0
22.5
22.0
21.5
21.0
4.00
3.99
3.98
3.97
3.96
3.95
3.94
1.030
1.025
1.020
1.015
1.010
1.005
1.000
- 40
-40
-40
-40
-40
- 20
-20
-20
-20
-20
o
0
0
0
0
C - 125
0
En able (UV L O) Stop
IOCSET (500k Hz )
V cc(UV L O) Stop
20
20
20
20
20
Icc(Dyn )
IR3840MPbF
ISS
Te m p [oC]
T e m p [o C ]
Te m p [oC]
T e m p [ o C ]
T e m p[o C]
40
40
40
40
40
o
C) F
60
60
60
60
60
80
80
80
80
80
s
=500 kHz
100
100
100
100
100
120
120
120
120
120
8