RT8008 RICHTEK [Richtek Technology Corporation], RT8008 Datasheet - Page 12

• Manufacturer Part Number: RT8008
• Description: 1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter
• Manufacturer: RICHTEK [Richtek Technology Corporation]

RT8008
} Connect feedback network behind the output capacitors.
} Connect all analog grounds to a command node and
} An example of 2-layer PCB layout is shown in Figure 7
Suggested Inductors
Suggested Capacitors for C
www.richtek.com
12
Keep the loop area small. Place the feedback
components near the RT8008.
then connect the command node to the power ground
behind the output capacitors.
to Figure 8 for reference.
TAIYO YUDEN
TAIYO YUDEN
Component Supplier
Component
GOTREND
GOTREND
Supplier
Sumida
Sumida
TAIYO YUDEN
TAIYO YUDEN
TAIYO YUDEN
MURATA
MURATA
MURATA
TDK
TDK
Figure 7. Top Layer
CDRH2D14
CDRH2D14
NR 3015
NR 3015
GTSD32
GTSD32
Series
IN
and C
GRM219R60J106ME19
GRM188R60J475KE19
GRM219R60J106KE19
OUT
JMK107BJ475RA
JMK107BJ106MA
JMK212BJ106RD
C1608JB0J475M
C2012JB0J106M
Inductance
Part No.
( H)
2.2
4.7
2.2
4.7
2.2
4.7
(m )
DCR
120
135
146
60
75
58
V
Capacitance ( F)
IN
C3
Current Rating
4
4.7
4.7
4.7
1
10
10
10
10
10
VIN
EN
J1
(mA)
1480
1020
1500
1000
1500
1100
RT8008
Figure 6. EVB Schematic
Figure 8. Bottom Layer
V
GND
IN
FB
LX
3.85 x 3.85 x 1.8
3.85 x 3.85 x 1.8
4.5 x 3.2 x 1.55
4.5 x 3.2 x 1.55
3
5
2
Dimensions
Case Size
3 x 3 x 1.5
3 x 3 x 1.5
L1
0603
0805
0603
0805
0805
0603
0603
0805
(mm)
DS8008-04 March 2007
C2
C1
R2
R1
V
OUT
10uF
C4