参数资料
| 型号： | SC198MLTRT |
| 厂商： | Semtech |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC PROG .6A 20MLPQ |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 可编程 |
| 输入电压： | 2.7 V ~ 5.5 V |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 600mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-MLPQ |
| 包装： | 标准包装 |
| 供应商设备封装： | 20-MLPQ（4x4） |
| 产品目录页面： | 1358 (CN2011-ZH PDF) |
| 其它名称： | SC198MLDKR |
NOT RECOMMENDED FOR NEW DESIGN
SC198
POWER MANAGEMENT
Applications Information (Cont.)
PCB Layout Considerations
Poor layout can degrade the performance of the DC-DC converter and can be a contributory factor in EMI problems,
ground bounce, thermal issues, and resistive voltage losses. Poor regulation and instability can result.
The following design rules are recommended:
1. Place the inductor and ? lter capacitors as close to the device as possible and use short wide traces between the
power components.
2. Route the output voltage feedback path away from inductor and LX node to minimize noise and magnetic
interference.
3. Use a ground plane to further reduce noise interference on sensitive circuit nodes.
VIN
CinR
VOUTA
Note:
Control pin routings are not shown.
? 2007 Semtech Corp.
LXA
GND
CinA
SC198
11
CinB
LXB
GND
VOUTB
www.semtech.com
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