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參數(shù)資料
| 型號(hào)： | LM317AS |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3-Terminal Adjustable Regulator |
| 中文描述： | 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSSO3 |
| 封裝： | TO-263, SMT-3 |
| 文件頁(yè)數(shù)： | 6/15頁(yè) |
| 文件大?。?/td> | 469K |
| 代理商： | LM317AS |
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Application Hints
(Continued)
or less and 10 μF capacitance. Figure 3 shows an LM117HV
with protection diodes included for use with outputs greater
than 25V and high values of output capacitance.
Current Limit
Internal current limit will be activated whenever the output
current exceeds the limit indicated in the Typical Perfor-
mance Characteristics. However, if during a short circuit con-
dition the regulator’s differential voltage exceeds the Abso-
lute Maximum Rating of 60V (e.g. V
≥
60V, V
= 0V),
internal junctions in the regulator may break down and the
device may be damaged or fail. Failure modes range from an
apparent open or short from input to output of the regulator,
to a destroyed package (most common with the TO-220
package). To protect the regulator, the user is advised to be
aware of voltages that may be applied to the regulator during
fault conditions, and to avoid violating the Absolute Maxi-
mum Ratings.
Note:
D1 protects against C1
D2 protects against C2
Schematic Diagram
Typical Applications
DS009062-7
FIGURE 3. Regulator with Protection Diodes
DS009062-8
Slow Turn-On 15V Regulator
DS009062-9
Adjustable Regulator with Improved
Ripple Rejection
DS009062-10
Solid tantalum
*Discharges C1 if output is shorted to ground
L
www.national.com
6
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM317AT | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| LM317AT | 制造商:Texas Instruments 功能描述:V REG ADJ +1.2/37V TO-220-3 317 |
| LM317AT/NOPB | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) 3-TERMINAL ADJ REG RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| LM317AT/NOPB | 制造商:Texas Instruments 功能描述:Linear Voltage Regulator IC |
| LM317ATP+ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3-Terminal Adjustable Regulator |
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