RT9178_08 Datasheet, PDF (5/11 Pages) Richtek Technology Corporation – 200mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator

Typical Operating Characteristics
Output Voltage vs. Temperature
3.5
3.3
3.1
2.9
2.7
2.5
-35 -15
VIN = 4V
CBP = 10nF
CIN = 1uF
COUT = 1uF
5 25 45 65 85 105 125
Temperature _{(° C)}
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.01
PSRR
100mA
1mA
VIN = 4V
CBP = 10nF
CIN = 1uF
COUT = 1uF
TA = 25°C
0.1
1
10
100
Frequency (kHz)
1000
Dropout Voltage vs. Load Current
0.3
0.25
TJ = 125° C
0.2
0.15
0.1
0.05
0
0
TJ = 25° C
TJ = -35° C
VIN = 4V
CBP = 10nF
CIN = 1uF
COUT = 1uF
25 50 75 100 125 150 175 200
Load Current (mA)
DS9178-16 April 2008
RT9178
Quiescent Current vs. Temperature
100
95
90
85
80
75
70
-35 -15
VIN = 4V
CBP = 10nF
CIN = 1uF
COUT = 1uF
5 25 45 65 85 105 125
Temperature _(°C)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.01
PSRR
100mA
1mA
VIN = 4V
CBP = 10nF
CIN = 1uF
COUT = 1uF
TA = -35°C
0.1
1
10
100
Frequency (kHz)
1000
Line Transient Response
VIN = 3.2 to 3.8V
CBP = 10nF
CIN = 1uF
COUT = 10uF
3.8
3.2
20
0
-20
Time (500us/Div)
www.richtek.com
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