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參數資料
| 型號： | LM3350MMX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 1100 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | MINI, SO-8 |
| 文件頁數： | 9/10頁 |
| 文件大小： | 278K |
| 代理商： | LM3350MMX/NOPB |
Typical Application Circuits
Layout Information
LAYOUT CONSIDERATIONS
The LM3350’s high switching frequency (800 kHz) makes a
good layout important. Figure 4 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
high and
C
low have the highest value of di/dt. It is therefore most
important to keep them close to the IC. The ground lead that
C
high and Clow 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.
10000213
FIGURE 2. Step-Up Converter
10000214
FIGURE 3. Step-Down Converter
LM3350
www.national.com
8
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相關代理商/技術參數 |
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| LM3351 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Switched Capacitor Voltage Converter |
| LM3351A WAF | 制造商:Texas Instruments 功能描述: |
| LM3351AM E WAF | 制造商:Texas Instruments 功能描述: |
| LM3351MM | 功能描述:IC REG MULTI CONFIG 50MA 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:125mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應商設備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
| LM3351MM/NOPB | 功能描述:IC REG MULTI CONFIG 50MA 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:125mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應商設備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
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