RT8289GSP 데이터 시트보기 (PDF) - Richtek Technology
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RT8289GSP Datasheet PDF : 13 Pages
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RT8289
SW should be connected to inductor by
wide and short trace. Keep sensitive
components away from this trace.
SW
VOUT COUT
VOUT R1
CBOOT
BOOT
NC
NC
FB
8
2
7
GND
3
6
9
4
5
L
SW
VIN
GND
EN
COUT
D1
CIN
CIN
R2
The feedback components
should be connected as close
to the device as possible.
Input capacitor should be
placed as close to the IC
as possible.
GND
Figure 6. PCB Layout Guide
Table 3. Suggested Capacitors for CIN and COUT
Location Component Supplier
Part No.
CIN
MURATA
GRM32ER71H475K
CIN
TAIYO YUDEN
UMK325BJ475MM-T
COUT
COUT
SANYO
SANYO
16IQC47M
10TPE47MAIB
COUT
MURATA
GRM31CR60J476M
Capacitance (μF)
4.7
4.7
47
47
47
Case Size
1206
1206
D2
B2
1206
Table 4. Suggested Diode
Component Supplier Series
DIODES
B550C
PANJIT
SK55
VRRM (V)
50
50
IOUT (A)
5
5
Package
SMC
SMC
www.richtek.com
12
DS8289-01 March 2011
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