BD9120HFN Rohm, BD9120HFN Datasheet - Page 34

• Manufacturer Part Number: BD9120HFN
• Description: (BD9106FVM - BD9120HFN) Synchronous Buck Converter Integrated FET
• Manufacturer: Rohm

BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
●Cautions on PC Board layout
●Recommended components Lists on above application
www.rohm.com
BD9106FVM, BD9107FVM, BD9109FVM, BD9120HFN
BD9110NV Cautions on PC Board layout
Table1. [BD9106FVM]
② Lay out the input ceramic capacitor CIN closer to the pins PVCC and PGND, and the output capacitor Co closer to
③ Lay out CITH and RITH between the pins ITH and GND as neat as possible with least necessary wiring.
① For the sections drawn with heavy line, use thick conductor pattern as short as possible.
※ The package of HSON8 (BD9120HFN) and SON008V5050 (BD9110NV) has thermal FIN on the reverse of the package.
The package thermal performance may be enhanced by bonding the FIN to GND plane which take a large area of PCB.
the pin PGND.
C
R
C
C
L
ITH
ITH
IN
O
EN
Symbol
R
Coil
Ceramic capacitor
Ceramic capacitor
Ceramic capacitor
Resistance
ITH
R
③
R
2
1
C
ITH
R
C
③
Part
ITH
ITH
1
2
3
4
1
2
3
4
V
ITH
EN
GND
Fig.103 Layout diagram
OUT
ADJ
V
ITH
GND
Fig.104 Layout diagram
CC
/ADJ
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
=1.0V
=1.2V
=1.5V
=1.8V
=2.5V
34/40
750pF
4.7μH
Value
10μF
10μF
PGND
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PV
V
SW
PGND
CC
CC
PV
SW
18kΩ
22kΩ
22kΩ
27kΩ
36kΩ
EN
CC
8
7
6
5
8
7
6
5
C
IN
Manufacturer
C
②
Kyocera
Kyocera
IN
Sumida
murata
ROHM
ROHM
ROHM
ROHM
ROHM
TDK
L
EN
V
CC
L
V
②
CC
TSZ02201-0J3J0AJ00090-1-2
C
O
C
o
①
VLF5014AT-4R7M1R1
02.MAR.2012 Rev.001
GND
CM316X5R106K10A
CM316X5R106K10A
V
GRM18series
MCR10 1802
MCR10 2202
MCR10 2202
MCR10 2702
MCR10 3602
①
OUT
CMD6D11B
Series
GND
Datasheet
V
OUT
Datasheet pdf - http://www.DataSheet4U.net/