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参数资料
| 型号： | LM3351MM/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 275 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | MINI, SO-8 |
| 文件页数： | 9/10页 |
| 文件大小： | 298K |
| 代理商： | LM3351MM/NOPB |
Typical Application Circuits (Continued)
Layout Information
LAYOUT CONSIDERATIONS
The LM3351’s high switching frequency (200 kHz) makes a
good layout important. Figure 3 illustrates a typical layout. It
is important to keep the distance short between the four
capacitors and the IC. Wide traces and grounding are also
recommended. These steps will minimize trace inductance
and high frequency ringing. Of the four capacitors, C
IN and
C
OUT have the highest value of di/dt. It is therefore most
important to keep them close to the IC. The ground lead that
C
IN and COUT share should also be kept wide and short.
The location of the diode (D1) used in the step-up configu-
ration is not critical. This diode is only used during the initial
turn on of the IC. D1 is not needed in step-down applications.
10014613
FIGURE 2. Step-Down Converter
LM3351
www.national.com
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM3351MMX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Switched Capacitor Voltage Converter |
| LM3351MMX/NOPB | 功能描述:IC REG MULTI CONFIG 50MA 8-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR |
| LM3352 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Regulated 200 mA Buck-Boost Switched Capacitor DC/DC Converter |
| LM3352-3.0EVAL | 功能描述:EVALUATION BOARD FOR LM3352-3.0 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM3352-3.3EVAL | 功能描述:EVALUATION BOARD FOR LM3352-3.3 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
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