rt9270 Richtek Technology Corporation, rt9270 Datasheet - Page 7

• Manufacturer Part Number: rt9270
• Description: High Performance, Noise Boost Converter
• Manufacturer: Richtek Technology Corporation

DS9270-09 March 2007
12.05
11.95
11.85
11.75
11.65
1600
1400
1200
1000
1.26
1.25
1.24
1.23
1.22
1.21
1.20
12.1
11.9
11.8
11.7
800
600
400
200
12
0
3
2
0
V
T
Ambient Temperature = 25°C
IN
A
Output Voltage vs. Output Current
= 3.3V
= 25°C,fosc = 670kHz
Maximum Output Current vs. V
2.5
30
3.5
3
60
Output Current (mA)
4
3.5
V
90
FB
V
V
IN
IN
4.5
4
vs. V
(V)
(V)
120
4.5
IN
5
150
V
V
5
OUT
OUT
5.5
= 12V
= 7.2V
180
5.5
Preliminary
IN
210
6
6
1600
1400
1200
1000
0.45
0.35
0.25
1.26
1.25
1.24
1.23
1.22
1.21
1.20
800
600
400
200
0.5
0.4
0.3
0.2
0
-60
2
3
V
T
IN
A
= 3.3V
Maximum Output Current vs. V
No Load Supply Current vs. V
2.5
= 25°C,fosc = 1.3MHz
-40
3.5
-20
3
V
FB
4
3.5
0
Temperature
vs. Temperature
V
V
IN
IN
4.5
20
4
(V)
(V)
V
fosc = 1.3 MHz
OUT
fosc = 670kHz
4.5
40
RT9270
www.richtek.com
(
5
°
= 7.2V
C)
60
5
V
OUT
5.5
IN
5.5
= 12V
80
IN
100
7
6
6