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參數(shù)資料
| 型號(hào)： | ZXCL250H5 |
| 廠商： | ZETEX PLC |
| 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： | 2.5 V FIXED POSITIVE LDO REGULATOR, 0.325 V DROPOUT, PDSO5 |
| 封裝： | 2.10 X 2 MM, SC-70, 5 PIN |
| 文件頁(yè)數(shù)： | 7/11頁(yè) |
| 文件大小： | 287K |
| 代理商： | ZXCL250H5 |
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZXCL250H5TA | 功能描述:低壓差穩(wěn)壓器 - LDO 2.5V 150mA Sgl 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(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 |
| ZXCL250H5TA-CUT TAPE | 制造商:DIODES 功能描述:ZXCL Series 5.5 V 150 mA Low Dropout 2.5 V Output Micropower Regulator - SC-70-5 |
| ZXCL260 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:ULTRA SMALL MICROPOWER SC70 LOW DROPOUT REGULATORS |
| ZXCL260E5 | 功能描述:IC REG LDO 2.6V .15A SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:2.7V 輸入電壓:最高 5.5V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.21V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 供應(yīng)商設(shè)備封裝:TSOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1100 (CN2011-ZH PDF) 其它名稱:576-1852-1 |
| ZXCL260E5TA | 功能描述:低壓差穩(wěn)壓器 - LDO 2.6V 150mA Sgl 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(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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