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參數(shù)資料
| 型號(hào)： | LPO4812 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Up to 500 mA, High Efficiency Synchronous Step-Down DC-DC Converter |
| 中文描述： | 多達(dá)500個(gè)，高效率同步降壓毫安型DC - DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 8/16頁(yè) |
| 文件大?。?/td> | 162K |
| 代理商： | LPO4812 |
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NCP1511
http://onsemi.com
8
V
CB
(V)
Figure 16. Output Voltage vs. Shutdown Pin
Voltage
1.4
0.6
V
SHD
(V)
0.4
0.2
0
V
o
2.0
1.5
1.0
0
0.5
1.2
1.0
0.8
Figure 17. Transition Level of CB Pins
V
in
= 3.6 V
V
out
= 1.5 V
T
A
= 25
°
C
PWM Mode
1.4
0.6
0.4
0.2
0
V
o
2.0
1.5
1.0
0
0.5
1.2
1.0
0.8
V
in
= 3.6 V
V
out
= 1.5 V
T
A
= 25
°
C
PWM Mode
Figure 18. Light Load PWM Switching Waveform
(V
in
= 3.6 V, V
out
= 1.5 V, I
out
= 30 mA)
Figure 19. Heavy Load PWM Switching Waveform
(V
in
= 3.6 V, V
out
= 1.5 V, I
out
= 300 mA)
Figure 20. Pulsed Mode Switching Waveform
(V
in
= 3.6 V, V
out
= 1.5 V, I
out
= 30 mA)
Figure 21. SoftStart
(V
in
= 3.6 V, V
out
= 1.5 V, I
out
= 150 mA)
1 s/div
V
out
AC Coupled
10 mV/div
V
LX
1 V/div
1 s/div
V
out
AC Coupled
10 mV/div
V
LX
1 V/div
500 ms/div
V
out
0.5 V/div
V
shdn
1 V/div
1 s/div
V
out
AC Coupled
10 mV/div
V
LX
1 V/div
1.5 V
2 V
0
0
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