9014 查看數據表（PDF） - Fairchild Semiconductor
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9014 Datasheet PDF : 16 Pages
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Drain-to-Source Current of Q1
Source-to-Drain Current of Q2
Figure 4-3. Current waveforms between the drain and source of
switch MOSFET (Q1) and Rectifier MOSFET (Q2)
⇒ Vertical Division: 2[A]/div, Horizontal Division: 500[ns]/div
The graph in Figure 4-4 depicts the actual set efficiency measured under the following two
conditions.
• Output voltage change
Can program voltages from 1.30[V] ~ 3.5[V] according to the 5-bit DAC input of the RC5058
IC. The two voltages tested are 1.550V and 2.000V.
• Load current change
Varies the output current from 1A to 18A when the output voltage is 2.000V, and varies the
output current from 1A to 13A when the output voltage is 1.550V.
94
92
V = 2.000 [V]
90
out
V = 1.550 [V]
out
88
86
84
82
80
78
76
74
72
70
0
2
4
6
8
10 12 14 16 18
I , Output current [ A ]
out
Figure 4-4. When the output voltages (Vout) are 1.550[V],
and 2.000[V], efficiency of each output current (Iout)
14
Rev. B, July 2000
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