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参数资料
| 型号： | LM3668SDX-3.3/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.05 A DUAL SWITCHING CONTROLLER, 2500 kHz SWITCHING FREQ-MAX, DSO12 |
| 封装： | ROHS COMPLIANT, LLP-12 |
| 文件页数： | 5/20页 |
| 文件大小： | 2497K |
| 代理商： | LM3668SDX-3.3/NOPB |
Layout Considerations
As for any high frequency switcher, it is important to place the
external components as close as possible to the IC to maxi-
mize device performance. Below are some layout recommen-
dations:
1) Place input filter and output filter capacitors close to the IC
to minimize copper trace resistance which will directly effect
the overall ripple voltage.
2) Route noise sensitive trace away from noisy power com-
ponents. Separate power GND ( Noisy GND) and Signal GND
( quiet GND) and star GND them at a single point on the PCB
prefereably close to the device GND pin.
3) Connect the ground pins and filter capacitors together via
a ground plane to prevent switching current circulating
through the ground plane. Additional layout consideration re-
garding the LLP package can be found in Application AN1187
13
www.national.com
LM3668
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相关代理商/技术参数 |
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|---|---|
| LM3668SDX-4550 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1A, High Efficiency Dual Mode Single Inductor Buck-Boost DC/DC Converter |
| LM3668SDX-4550/NOPB | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| LM3670 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits |
| LM3670_06 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits |
| LM3670B-0250 WAF | 制造商:Texas Instruments 功能描述: |
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