RT9179 データシートの表示（PDF） - Richtek Technology
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RT9179 Datasheet PDF : 10 Pages
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RT9179
Current Limit vs. Temperature
1
VIN = 5V
0.95
0.9
0.85
0.8
0.75
0.7
-50 -25
0
25 50 75
Temperature (°C)
100 125
Line Transient Regulation
7
VIN = 4V to 5V
6 ILOAD : 150mA
5
R1=1.8KΩ, R2=1KΩ
CIN=1uF(Electrolytic)
CO=1uF(Electrolytic)
4
20
10
0
-10
- 20
Time (100us/Div)
Enable Threshold Voltage
vs. Temperature
1
0.9
0.8
VOUT TURN ON
0.7
VOUT TURN OFF
0.6
0.5
-50 -25
0
25 50 75
Temperature (°C)
100 125
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6
Output Short-Circuit Protection
4
2
1
0.8
0.6
0.4
VIN = 5V
R1 = 1.8kΩ
0.2
R2 = 1kΩ
0
CIN = 1uF
CO = 1uF
Time (1ms/Div)
Load Transient Regulation
60 VIN = 5V, R1 = 1.8KΩ
40 R2 = 1KΩ
CIN = 1uF(Ceramic)
CO = 2.2uF(Ceramic)
20
0
-20
0.2
0.1
0
-0.1
Time (100us/Div)
Enable Response
6
4
2
0
VIN =5V
3
R1 =1.8kΩ
R2 =1kΩ
2
CIN =1uF
CO =1uF
1
0
ILOAD : 150mA
Time (100us/Div)
DS9179-08 March 2007
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