RT9008
5000
4000
3000
2000
1000
0
0
VEN
(5V/Div)
Soft Start Time vs. CSS
4
8
12
16
20
24
CSS (nF)
Power On from EN
EN Threshold Voltage vs. Temperature
1.00
0.95
0.90
Rising
0.85
0.80
Falling
0.75
0.70
0.65
0.60
-50 -25
0
25 50 75
Temperature (°C)
100 125
VEN
(5V/Div)
Power Off from EN
VIN = 5V, VOUT = 1.2V, ILOAD = 80mA
VOUT
(500mV/Div)
VIN = 5V, VOUT = 1.2V, ILOAD = 80mA
Time (500μs/Div)
VOUT
(500mV/Div)
Time (1ms/Div)
20
VOUT
(mV/Div) 0
-20
Load Transient Response
VIN = 2.5V, VOUT = 1.2V, CIN = COUT = 100μF
10
VOUT
(mV/Div) 0
-10
Line Transient Response
VIN = 1.5V to 2.5V, ILOAD = 100mA
CIN = 2.2μF, COUT = 100μF
ILOAD 5
(A/Div) 0
Time (250μs/Div)
VIN 2.5
(V/Div) 1.5
Time (100μs/Div)
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DS9008-01 April 2011