RT9193
Typical Operating Characteristics
Output Voltage vs. Temperature
1.8
1.7
Quiescent Current vs. Temperature
95
90
Quiescent Current (uA)
50
75
100
125
RT9193-15xU5
V
IN
= 3.3V
C
IN
= C
OUT
= 1uF X7R
RT9193-15xU5
V
IN
= 3.3V
C
IN
= C
OUT
= 1uF X7R
Output Voltage (V)
1.6
1.5
1.4
1.3
1.2
-50
-25
0
25
85
80
75
70
65
60
-50
-25
0
25
50
75
100
125
Temperature
(°C)
Temperature
(°C)
Dropout Voltage vs. Load Current
300
250
200
RT9193-33xB
C
IN
= C
OUT
= 1uF
T
J
= 125°C
20
PSRR
V
IN
= 4V to 5V
C
IN
= C
OUT
= 1uF,
X7R
Dropout Voltage (mV)
0
PSRR (dB)
T
J
= 25°C
150
100
50
0
0
0.05
0.1
0.15
0.2
0.25
0.3
-20
T
J
= -40°C
-40
-60
I
Load
= 100mA
I
Load
= 10mA
-80
10
0.01
100
0.1
1K
1
10K
10
100K
100
1M
1000
Load Current (A)
Frequency (kHz)
(Hz)
EN Pin Shoutdown Threshold vs. Temperature
1.75
EN Pin Shutdown Response
EN Pin Voltage
(V)
10
5
0
V
IN
= 5V
C
IN
= C
OUT
= 1uF
RT9193-28xU5
No Load
EN Pin Shoutdown Threshold (V)
1.5
RT9193-15xU5
V
IN
= 3.3V
C
IN
= C
OUT
= 1uF X7R
1.25
1
Output Voltage
(V)
-50
-25
0
25
50
75
100
125
2
1
0
0.75
0.5
Time (500μs/Div)
Temperature
(°C)
DS9193-11 May 2008
www.richtek.com
5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
