RT9261/A
Preliminary
RT9261A (2.7V)
Output Voltage vs. Output Current
3.0
2.5
Maximum Oscillator Frequency vs. Temp.
Maximum Oscillator Frequency (kHz)
160
140
2.5V
1.5V
1.0V
0.9V
2.0V
Output Voltage (V)
120
100
80
60
40
20
0
-40
-20
2.0
1.5
1.0
0.5
0.0
0
30
60
90
RT9261
V
OUT
= 2.7V
RT9261A
V
OUT
= 2.7V
120
150
Temperature (
°
C)
0
20
40
60
80
Output Current (mA)
Oscillator Duty Cycle vs. Temperatrue
100
80
70
RT9261A (2.7V)
Efficiency vs. Output Current
2.5V
0.9V
1.0V
1.5V
2.0V
Oscillator Duty Cycle (%)
90
60
Efficiency (%)
80
50
40
30
20
70
60
50
-40
-20
0
20
40
RT9261
V
OUT
= 2.7V
60
80
10
0
0
30
60
90
RT9261A
V
OUT
= 2.7V
120
150
Temperature (
°
C)
Output Current (mA)
Start-up/Hold-on Voltage vs. Output Current
Start-up/Hold-on Voltage Vstart/Vhold (V)
1.6
1.4
120
100
RT9261A (2.7V)
Output Current vs. Ripple Voltage
Ripple Voltage (mV p-p)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
V
start
2.5V
80
60
40
20
0
0
30
60
90
2.0V
1.5V
V
hold
RT9261A
V
OUT
= 2.7V
30
60
90
120
150
0.9V
RT9261A
V
OUT
= 2.7V
120
150
Output Current (mA)
Output Current (mA)
www.richtek-ic.com.tw
DS9261/A-03 January 2002
10
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
