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RT9166/A
Preliminary
5
DS9166/A-09 October 2004
www.richtek.com
Typical Operating Characteristics
Output Noise
Time (1ms/DIV)
400
200
0
-200
-400
VIN = 5V
CIN = 1uF
ILOAD = 100mA
COUT = 1uF
f = 10Hz to 100KHz
Current Limit vs. Input voltage
700
750
800
850
900
33.544.555.5
Input voltage (V)
VIN = 5V
CIN = 1uF
COUT = 1uF
RL = 0.5
Ω
RT9166-33CX
Current Limit vs. Input voltage
700
750
800
850
900
3
3.5
4
4.5
5
5.5
Input voltage (V)
VIN = 5V
CIN = 1uF
COUT = 1uF
RL = 0.5
Ω
RT9166-33CVL
Power Supply Rejection Ratio
-60
-50
-40
-30
-20
-10
0
Frequency (Hz)
VIN = 5V
CIN = 1uF
COUT = 1uF
100mA
1mA
10
100
1k
10k
100k
1M
Dropout Voltage vs. Load Current
0
100
200
300
400
500
600
700
0
100
200
300
400
500
600
Load Current (mA)
CIN = 1uF
COUT = 1uF
TJ = 125
°C
TJ = 25
°C
TJ =
−40°C
Region of Stable COUT ESR vs. Load Current
0.00
0.01
0.10
1.00
10.00
100.00
0
100
200
300
400
500
600
Load Current (mA)
Instable
Instable
Stable
COUT = 1uF to 4.7uF
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