BD9C301FJ-LB Datasheet, PDF (5/22 Pages) Rohm – 4.5V to 18V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter

BD9C301FJ-LB
Typical Performance Curves
100
90
80
V_OUT = 5.0V
70
V_OUT = 3.3V
60
50
40
30
V_IN =12V
20
L=4.7µH
Cout=44µF
10
0
0
1
2
3
ILOAD[A]
Figure 4. Efficiency
(V_IN=12V, L=4.7µH (V_OUT =3.3/5.0V), Cout=44µF)
110
100
90
80
70
60
50
40
30
20
0.0 0.5 1.0 1.5 2.0 2.5 3.0
ILOAD[A]
Figure 5. T_C vs I_LOAD
(V_IN=12V, V_OUT =3.3V, L=4.7µH, Cout=44µF)
V_OUT (AC) [20mV/div]
SW [5V/div]
V_OUT (AC) [20mV/div]
SW [5V/div]
T - Time - 1µsec/div
Figure 6. Output Ripple Voltage
(V_IN=12V, V_OUT =3.3V, L=4.7µH, Cout=44µF, Iout=0A)
T - Time - 1µsec/div
Figure 7. Output Ripple Voltage
(V_IN=12V, V_OUT =3.3V, L=4.7µH, Cout=44µF, Iout=3A)
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TSZ02201-0J3J0AJ00540-1-2
21.Feb.2014 Rev.002