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參數資料
| 型號： | LM2925 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩壓器的反向電流保護 |
| 文件頁數： | 6/8頁 |
| 文件大?。?/td> | 223K |
| 代理商： | LM2925 |
Application Hints
(Continued)
Capacitors must also be rated at all ambient temperatures
expected in the system. Many aluminum type electrolytics
will freeze at temperatures less than 30C, reducing their
effective capacitance to zero. To maintain regulator stability
down to 40C, capacitors rated at that temperature (such as
tantalums) must be used.
RESET OUTPUT
The range of values for the delay capacitor is limited only by
stray capacitances on the lower extreme and capacitance
leakage on the other. Thus, delay times from microseconds
to seconds are possible. The low charging current, typically
2.0 microamps, allows the use of small, inexpensive disc ca-
pacitors for the nominal range of 100 to 500 milliseconds.
This is the time required in many microprocessor systems for
the clock oscillator to stabilize when initially powered up. The
RESET output of the regulator will thus prevent erroneous
data and/or timing functions to occur during this part of op-
eration. The same delay is incorporated after any other fault
condition in the regulator output is corrected.
www.national.com
6
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM2927T | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:Texas Instruments 功能描述: |
| LM2930-5KC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM2930A | 功能描述:低壓差穩壓器 - LDO 5.0V 0.4A Positive RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LM2930S-5.0 | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:V REG LDO +5.0V SMD 2930 TO2633 |
| LM2930S-5.0 WAF | 制造商:Texas Instruments 功能描述: |
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