RT8005
Typical Application Circuit
V
IN
2.4V to 5.5V
C
IN
2.2uF
4
VDD
2,3
PVDD
LX
RT8005
FB
PGND
6
9, 10
1
L
OUT
2.2uH
R1
10k
R2
7.15k
V
OUT
1.2V/1A
C
OUT
2.2uF
Chip Enable
5 EN
7
C
COMP
10nF
COMP
GND
8,
Exposed Pad (11)
Recommended component selection for Typical Application Circuit.
V
OUT
(V)
0.5
1
1.2
1.8
2.5
3.3
V
IN
(V)
2.4 to 5.5
2.4 to 5.5
2.4 to 5.5
2.4 to 5.5
3.3 to 5.5
4.2 to 5.5
C
IN
(uF)
2.2
2.2
2.2
2.2
2.2
2.2
C
OUT
(uF)
2.2/4.7
2.2/4.7
2.2/4.7
2.2/4.7
2.2/4.7
2.2/4.7
L
OUT
(uH)
2.2
2.2
2.2
2.2
2.2
2.2
R1 (kΩ)
10
10
10
10
10
10
R2 (kΩ)
Open
10
7.15
3.83
2.49
1.78
C
COMP
(nF)
10
10
10
10
10
10
Suggested Inductors
Component
Supplier
ABC
Sumida
GOTREND
SR0403
CDRH3D16
GTSD53
Series
Inductance
(µH)
2.2
2.2
2.2
DCR
(mΩ)
47
59
29
Current Rating
(mA)
2600
1750
2410
Dimensions
(mm)
4.5x4x3.2
4x4x1.8
5x5x2.8
Suggested Capacitors For C
IN
and C
OUT
Component Supplier
TDK
Panasonic
TAIYO YUDEN
Part No.
C1608X5R1A225M
ECJ1VB0J225M
JMK107BJ225M
Capacitance (uF)
2.2
2.2
2.2
Case Size
0603
0603
0603
www.richtek.com
2
DS8005-08 August 2007
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
