MB39C313 Datasheet, PDF (33/52 Pages) Fujitsu Component Limited. – 4ch System Power Management IC for LCD Panel

MB39C313
■ EXAMPLE OF STANDARD OPERATION CHARACTERISTICS
REFERENCE DATA
(1) Buck Converter Characteristic
Efficiency vs. Output Current
VIN = 12 V, VLOGIC = 3.3 V, L1 = 10 μH
100
90
80
70
60
50
40
30
20
10
0
0
0.5
1
1.5
Load Current Io (A)
PWM Operation
Continuous Mode
VIN = 12 V, VLOGIC = 3.3 V, ILOAD = 1.5 A
Soft Start
VIN = 12 V, VLOGIC = 3.3 V , ILOAD = 1.2 A
VO1
1 V/div
1
ILx1
1 A/div
2
Time base : 200 μs/div
PWM Operation
Discontinuous Mode
VIN = 12 V, VLOGIC = 3.3 V, ILOAD = 45 mA
SWB
5 V/div
SWB
5 V/div
2
VO1
20 mV/div
1
ILx1
4 _{1 A/div}
Time base : 500 ns/div
Output Voltage vs. Output Current
3.327
3.317
3.307
3.297
3.287
3.277
VIN = 8 V
VIN = 10 V
VIN = 12 V
3.267
VIN = 14 V
0
0.5
1
1.5
Load Current Io (A)
2
VO1
20 mV/div
1
ILx1
100 mA/div
3
Time base : 500 ns/div
DS04–27267–1E
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