Analog Devices UG-189, Руководство пользователя

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UG-189 Evaluation Board User Guide
Rev. 0 | Page 6 of 12
CH1 5mV
CH4 2A Ω
CH2 5V M1 µ s A CH2 7.5V
2
4
1
B
W
T 30%
09
31
5-
00
9
Figure 9. Continuous Conduction Mode (CCM)
CH1 5mV
CH4 2A Ω
CH2 5V CH2 7.5V
2
4
1
B
W
A M1µs
T 30%
09
31
5-
0
10
Figure 10. Discontinuous Conduction Mode (DCM)
CH1 50mV
CH4 2A Ω
CH2 5V M200 µ s A CH2 7.5V
2
4
1
B
W
T 30%
09
31
5-
01
1
Figure 11. Power Saving Mode
CH1 2V
CH4 2A Ω
CH2 10V
CH3 10V
M1 m s A CH3 3.6V
2
4
3
1
B
W
B
W
T 20.2%
09
31
5-
01
2
Figure 12. Soft Start with Full Load
CH1 200mV
CH4 2A Ω
M200 µ s A CH4 1.88A
4
1
B
W
T 20%
09
31
5-
01
3
Figure 13. ADP2303 Load Transient, 0.5 A to 3.0 A, V
OUT
= 3.3 V, V
IN
= 12 V,
L = 4.7 μH, C
OUT
= 2 × 47 μF
CH1 20mV CH2 10V
CH3 5V
M1 m s A CH3 11V
2
3
1
B
W
B
W
B
W
T 23.4%
09
31
5-
0
14
Figure 14. ADP2303 Line Transient, 7 V to 15 V, V
OUT
= 3.3 V, I
OUT
= 3 A,
L = 4.7 μH, C
OUT
= 2 × 47 μF