RT9166/A
Typical Operating Characteristics
Dropout Voltage vs. Load Current
700
600
Power Supply Rejection Ratio
0
C
IN
= 1uF
C
OUT
= 1uF
T
J
= 125°C
-10
Dropout Voltage (mV)
V
IN
= 5V
C
IN
= 1uF
C
OUT
= 1uF
500
400
300
200
100
0
0
100
200
PSRR (dB)
T
J
= 25°C
-20
-30
-40
-50
-60
T
J
=
−40°C
100mA
1mA
300
400
500
600
10
100
1k
10k
100k
1M
Load Current (mA)
Frequency (Hz)
Region of Stable C
OUT
ESR vs. Load Current
100.00
Output Noise
V
IN
= 5V
C
IN
= 1uF
C
OUT
= 1uF to 4.7uF
10.00
I
LOAD
= 100mA
C
OUT
= 1uF
Output Noise Signal (μV)
Instable
400
200
0
-200
-400
f = 10Hz to
C
OUT
ESR (Ω)
1.00
Stable
0.10
0.01
Instable
0.00
0
100
200
300
400
500
600
Time (1ms/DIV)
Load Current (mA)
Current Limit vs. Input voltage
900
Current Limit vs. Input voltage
900
Current Limit (mA)
800
Current Limit (mA)
850
850
800
750
V
IN
= 5V
C
IN
= 1uF
C
OUT
= 1uF
R
L
= 0.5
Ω
3
3.5
4
4.5
750
RT9166-33CX
700
5
5.5
700
V
IN
= 5V
C
IN
= 1uF
C
OUT
= 1uF
R
L
= 0.5
Ω
3
3.5
4
4.5
RT9166-33CVL
5
5.5
Input voltage (V)
Input voltage (V)
DS9166/A-18 June 2007
www.richtek.com
5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
