ZY1207 7A No-Bus POL Data Sheet
3V to 14V Input ? 0.5V to 5.5V Output
95
90
85
80
75
70
65
60
55
Vin=5V
Vin=9.6V
Vin=3.3V
Vin=12V
5.2
Turn-On Characteristics
0.5
1.5
2.5
3.5
4.5
5.5
Output Voltage, V
Figure 6. Efficiency vs. Output Voltage, Iout=7A
Figure 8. Tracking Turn-On.
Vin=12V, Ch1 – V1, Ch2 – V2, Ch3 – V3
90
85
80
75
70
65
60
55
5.3
Turn-Off Characteristics
50
Vo=0.5V
Vo=1.2V
Vo=2.5V
3
4
5
6
7
8
9
10 11 12
13 14
Input Voltage, V
Figure 9. Tracking Turn-Off
Vin=12V, Ch1 – V1, Ch2 – V2, Ch3 – V3
Figure 7. Efficiency vs. Input Voltage. Iout=7A
5.4
Transient Response
The pictures in Figure 10 - Figure 15 show the
deviation of the output voltage in response to the 50-
75-50% step load at 1.0A/ μ s. In all tests the POL
converters had 5x22 μ F ceramic capacitors and a
220 μ F tantalum capacitor connected across the
output pins. The speed of the transient response
was optimized by selecting appropriate CCA
settings.
ZD-00697 Rev. 1.9, 24-Jun-10
www.power-one.com
Page 9 of 18
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