rt9261b ETC-unknow, rt9261b Datasheet - Page 6

• Manufacturer Part Number: rt9261b
• Description: Step Dc/dc Converter
• Manufacturer: ETC-unknow

RT9261B
www.richtek-ic.com.tw
6
Start-up/Hold-on Voltage vs. Output Current
300
250
200
150
100
2.5
1.5
0.5
50
18
16
14
12
10
2
1
0
0
8
6
4
2
0
0
0
0
1.0V
V
Output Current vs. Ripple Voltage
start
Output Current vs. Ripple Voltage
V
hold
20
1.0V
1.5V
2.0V
50
50
1.5V
Output Current (mA)
Output Current (mA)
Output Current (mA)
40
2.5V
100
100
60
2.0V
80
150
150
V
C
L = 100uH
V
C
L = 100uH
V
L = 100uH
OUT
OUT
3.0V
OUT
OUT
OUT
100
= 3.3V
= 170uF
2.5V
= 3.3V
= 3.3V
= 20uF
3.0V
120
200
200
Preliminary
100
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
0
0
1.0V
Output Voltage vs. Output Current
Output Current vs. Ripple Voltage
1.0V
1.0V
Efficiency vs. output Current
1.5V
1.5V
50
50
50
1.5V
Output Current (mA)
Output Current (mA)
Output Current (mA)
DS9261B-03 September 2001
100
100
100
2.0V
2.0V
2.0V
150
150
150
V
L = 100uH
V
L = 100uH
V
C
L = 100uH
OUT
OUT
OUT
OUT
3.0V
2.5V
= 3.3V
= 3.3V
= 3.3V
= 68uF
2.5V
3.0V
3.0V
2.5V
200
200
200