RT9170
Load Regulation Deviation vs. Temperature
Current Limit vs. Temperature
0
-0.0005
-0.001
1.60
1.40
1.20
1.00
-0.0015
-0.002
-0.0025
-0.003
-0.0035
-0.004
0.80 VIN = 5V
VOUT = 3.3V
VOUT = 2.5V
RL = 1Ω
-0.0045
0.60
-35
-15
5
25
45
65
85
105 125
-50
-25
0
25
50
75
100
125
Temperature
Temperature
(°C)
(°C)
PSRR
Current Limit
0
-10
-20
-30
-40
-50
-60
-70
CIN = 10uF (Ceramic) X5R
OUT = 10uF (Ceramic) X5R
VIN = 3.5V
ILOAD = 250mA
C
= 2.5V
3.0
VOUT
VIN = 5V
COUT = 1uF (Ceramic)
2.5
2.0
1.5
1.0
0.5
0
RL = 1Ω
ILOAD = 10mA
10
100
1K
10K
100K
1M
Time (5ms/Div)
Frequency (Hz)
Enable Respone
Enable Respone
VIN = 5V
VIN = 5V
VOUT = 3.3V
VOUT = 3.3V
CIN = 1uF(Ceramic)
6
3
2
CIN = 1uF (Ceramic)
4
COUT = 1uF(Ceramic)
ILOAD = 300mA
COUT = 1uF (Ceramic)
ILOAD = 300mA
2
0
1
0
2
1
0
2
0
Time (25ms/DIV)
Time (5ms/Div)
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6
DS9170-11 March 2007
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
