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參數(shù)資料
| 型號： | LP38842T-1.2 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1.5A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors |
| 中文描述： | 1.2 V FIXED POSITIVE LDO REGULATOR, 0.315 V DROPOUT, PSFM5 |
| 封裝： | TO-220, 5 PIN |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 626K |
| 代理商： | LP38842T-1.2 |
Application Hints
(Continued)
As shown in the graph below, increasing the copper area
beyond 1 square inch produces very little improvement. The
minimum value for
θ
JA
for the TO-263 package mounted to a
PCB is 32C/W.
Figure 2
shows the maximum allowable power dissipation
for TO-263 packages for different ambient temperatures,
assuming
θ
is 35C/W and the maximum junction tempera-
ture is 125C.
20103025
FIGURE 1.
θ
JA
vs Copper (1 Ounce) Area for TO-263
package
20103026
FIGURE 2. Maximum power dissipation vs ambient
temperature for TO-263 package
L
www.national.com
9
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PDF描述 |
|---|---|
| LP38842T-1.5 | 1.5A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors |
| LP38842 | 1.5A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors |
| LP38842-ADJ | 1.5A Ultra Low Dropout Adjustable Linear Regulators Stable with Ceramic Output Capacitors |
| LP3891 | 0.8A Fast-Response Ultra Low Dropout Linear |
| LP3891ES-1.2 | 0.8A Fast-Response Ultra Low Dropout Linear |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP38843 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors |
| LP38843S-0.8 | 功能描述:低壓差穩(wěn)壓器 - LDO 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(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38843S-0.8/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 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(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP38843S1.2 | 制造商:National Semiconductor 功能描述:LDO Regulator Pos 1.2V 3A 6-Pin(5+Tab) TO-263 Rail |
| LP38843S-1.2 | 功能描述:低壓差穩(wěn)壓器 - LDO 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(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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