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參數(shù)資料
| 型號： | LM3354 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Regulated 90mA Buck-Boost Switched Capacitor DC/DC Converter |
| 中文描述： | 穩(wěn)壓九零毫安的Buck - Boost開關(guān)電容DC / DC變換器 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 394K |
| 代理商： | LM3354 |
Maximum Load Under Start-Up
Due to the LM3354’s unique start-up sequence, it is not
able to start up under all load conditions. Starting with 60
mA or less will allow the part to start correctly under any
temperature or input voltage conditions.After the output is
in regulation, any load up to the maximum as specified in
the Electrical Characteristics may be applied. Using a
Power On Reset circuit, such as the LP3470, is recom-
mended if greater start up loads are expected. Under
certain conditions the LM3354 can start up with greater
load currents without the use of a Power On Reset Circuit.
Typical Application Circuits
Thermal Protection
During output short circuit conditions, the LM3354 will draw
high currents causing a rise in the junction temperature.
On-chip thermal protection circuitry disables the charge
pump action once the junction temperature exceeds the
thermal trip point, and re-enables the charge pump when the
junction temperature falls back to a safe operating point.
DS200188-33
FIGURE 2. Basic Buck/Boost Regulator
DS200188-15
FIGURE 3. Low Output Noise and Ripple Buck/Boost Regulator
DS200188-40
FIGURE 4. White LED Driver
L
www.national.com
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| LM337M | MEDIUM CURRENT THREE-TERMINAL ADJUSTABLE NEGATIVE VOLTAGE REGULATOR |
| LM337MT | MEDIUM CURRENT THREE-TERMINAL ADJUSTABLE NEGATIVE VOLTAGE REGULATOR |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3354-1.8EVAL | 功能描述:BOARD EVALUATION LM3354-1.8 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓撲結(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM3354-3.7 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM3354-3.7 Regulated 90mA Buck-Boost Switched Capacitor DC/DC Converter |
| LM3354-37 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Regulated 90mA Buck-Boost Switched Capacitor DC/DC |
| LM3354-4.1EVAL | 功能描述:BOARD EVALUATION LM3354-4.1 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓撲結(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM3354A E WAF | 制造商:Texas Instruments 功能描述: |
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