rt9278 Richtek Technology Corporation, rt9278 Datasheet - Page 4

• Manufacturer Part Number: rt9278
• Description: High Efficiency Boost Converter High Power White Driver
• Manufacturer: Richtek Technology Corporation

RT9278
www.richtek.com
4
Input Voltage
Input Voltage
Input Voltage
Input Voltage
1.5~3.0
1.5~3.3
3.0~4.5
1.5~3.0
1.5~3.3
3.0~4.5
1.5~3.0
1.5~3.3
3.0~4.5
1.5~3.0
1.5~3.3
3.0~4.5
(V)
(V)
(V)
(V)
Output Voltage
Output Voltage
Output Voltage
Output Voltage
3.3
5.0
5.0
3.3
5.0
5.0
3.3
5.0
5.0
3.3
5.0
5.0
(V)
(V)
(V)
(V)
Table 1. Component Selection for Figure 6 (L=2.2 H)
Table 2. Component Selection for Figure 6 (L=4.7 H)
Table 3. Component Selection for Figure 6 (L=6.8 H)
Table 4. Component Selection for Figure 6 (L=10 H)
( H)
( H)
( H)
( H)
6.8
6.8
6.8
2.2
2.2
2.2
4.7
4.7
4.7
10
10
10
L
L
L
L
Preliminary
C
C
C
C
( F)
( F)
( F)
( F)
40
40
40
40
40
40
40
40
40
40
40
40
OUT
OUT
OUT
OUT
(k )
(k )
(k )
(k )
150
130
130
150
130
130
150
130
130
150
130
130
R1
R1
R1
R1
(k )
(k )
(k )
(k )
470
680
680
470
680
680
470
680
680
470
680
680
R2
R2
R2
R2
R
R
R
R
(k )
(k )
(k )
(k )
COMP
COMP
COMP
COMP
43
24
24
24
24
24
24
24
24
24
24
24
DS9278-04 August 2007
C
C
C
C
(nF)
(nF)
(nF)
(nF)
COMP
COMP
COMP
COMP
5.6
8.2
3.9
8.2
10
15
15
22
12
22
33
18
(pF)
(pF)
(pF)
(pF)
C
C
C
C
18
12
12
18
12
12
18
12
12
18
12
12
FF
FF
FF
FF