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參數(shù)資料
| 型號(hào)： | ZXCL5213V26 |
| 廠商： | Zetex Semiconductor |
| 元件分類： | 基準(zhǔn)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(wěn)壓器的反向電流保護(hù) |
| 文件頁(yè)數(shù)： | 7/11頁(yè) |
| 文件大?。?/td> | 287K |
| 代理商： | ZXCL5213V26 |
Input to Output Diode
In common with many other LDO regulators, the ZXCL
device has an inherent diode associated with the
output series pass transistor. This diode has its anode
connected to the output and its cathode to the input.
The internal diode is normally reverse biased, but will
conduct if the output is forced above the input by more
than a V
BE
(approximately 0.6V). Current will then flow
from Vout to Vin. For safe operation, the maximum
current in this diode should be limited to 5mA
continuousand30mApeak.Anexternalschottkydiode
may be used to provide protection when this condition
cannot be satisfied.
Increased Output current
Any ZXCL series device may be used in conjunction
with an external PNP transistor to boost the output
current capability. In the application circuit
below, a FMMT717 device is employed as the external
passelement.ThisSOT23devicecansupplyupto2.5A
maximum current subject to the thermal dissipation
limits of the package (625mW). Alternative devices
may be used to supply higher levels of current. Note
that with this arrangement, the dropout voltage will be
increased by the V
BE
drop of the external device. Also,
care should be taken to protect the pass transistor in
the event of excessive output current.
shown
ZXCL Series
ISSUE 7 - AUGUST 2002
7
Scheme to boost output current to 2A
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| ZXCL5213V26H5 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZXCL5213V26H5 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:MICROPOWER SC70-5 & SOT23-5 LOW DROPOUT REGULATORS |
| ZXCL5213V26H5TA | 功能描述:低壓差穩(wěn)壓器 - LDO 2.6V LDO MIC/LMS 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(dòng)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 |
| ZXCL5213V28 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:MICROPOWER SC70-5 & SOT23-5 LOW DROPOUT REGULATORS |
| ZXCL5213V28H5 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:MICROPOWER SC70-5 & SOT23-5 LOW DROPOUT REGULATORS |
| ZXCL5213V28H5TA | 功能描述:低壓差穩(wěn)壓器 - LDO 2.8V LDO MIC/LMS 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(dòng)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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