参数资料
| 型号： | BD9853AFV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 13/17页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 16-SSOP |
| 标准包装： | 1 |
| PWM 型： | 控制器 |
| 输出数： | 2 |
| 频率 - 最大： | 2MHz |
| 电源电压： | 4.5 V ~ 16 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 标准包装 |
| 产品目录页面： | 1373 (CN2011-ZH PDF) |
| 其它名称： | BD9853AFV-E2DKR |
BD9853AFV
● Recommended Board Patterns
P MOS
L
VOUT
Technical Note
C IN
GND(IC)
INV
GND(others)
N MOS
SBD
C OUT
There are two current loops at the behavior of switching regulator. When laying a pattern on the board, put these elements
near to minimize these current loops and make the lines as short and wide as possible. And connect all GND lines at one
point to reduce effects caused by above current noise to other lines.
a pattern example of switching part
L
C OUT
SBD
P MOS
N MOS
C
IN
Place following parts with attention about patterns
VCC
CREGB
REGB
GND
CVCC
1
VCC
REGB
16
2
3
15
14
CREGA
4
REGA
13
GND
RRT
5
6
7
8
RT
12
11
10
9
? Place CVCC, CREGA, RRT, CREGB as near to the pin as possible.
? Pattern area has to be small enough to reduce parasitic capacitance with RT terminal.
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
13/16
2009.05 - Rev.A
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