RT9261B Просмотр технического описания (PDF) - Richtek Technology
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RT9261B Datasheet PDF : 8 Pages
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Preliminary
RT9261B
Typical Operating Characteristics
Start-up/Hold-on Voltage vs. Output Current
2.5
2
1.5
Vstart
1
0.5
0
0
Vhold
30
VOUT = 3.3V
L = 47uH
60
90
120 150 180
Output Current (mA)
Output Voltage vs. Output Current
4.0
3.5
3.0V
2.5V
3.0
1.0V
1.5V 2.0V
2.5
2.0
1.5
1.0
0.5
0.0
0
VOUT =
3.3V
50
100
150
200
Output Current (mA)
Output Current vs. Ripple Voltage
300
2.5V
250
2.0V
3.0V
200
150
100
50
0
0
1.5V
1.0V
VOUT = 3.3V
COUT = 20uF
L = 47uH
50
100
150
200
Output Current (mA)
90
80
70
60
50
40
30
20
10
0
0
Output Current vs. Ripple Voltage
3.0V
2.0V
2.5V
1.0V
1.5V
VOUT = 3.3V
COUT = 68uF
L = 47uH
50
100
150
200
Output Current (mA)
Output Current vs. Ripple Voltage
25
20
2.5V
15
3.0V
10
1.0V
5
VOUT = 3.3V
2.0V
1.5V
0
COUT = 170uF
L = 47uH
0
50
100
150
200
Output Current (mA)
DS9261B-12 March 2007
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs. output Current
3.0V
2.5V
1.0V
1.5V
2.0V
VOUT =
3.3V
50
100
150
200
Output Current (mA)
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