簡(jiǎn)單介紹HT7818:HT78xx系列:輸出電流可以達(dá)到:500mA;只有2uA的靜態(tài)電流;特色是僅5微安的極低靜態(tài)電流及低輸出入電壓差(Vdrop),因此可有效延長(zhǎng)電池壽命
HT7818 的詳細(xì)介紹
HT7818盛群新推出TinyPowerTM低電壓差電源穩(wěn)壓IC---HT7218 HT7225 HT7227 HT7230 HT7233 HT7250及HT7818 HT7825HT7827 HT7830 HT7833 HT785005/22/2007繼廣獲好評(píng)的HT71XX、HT73XX、HT75XX系列之后,盛群半導(dǎo)體進(jìn)一步推出更高輸出電流的低壓差穩(wěn)壓器(LowDropout Regulator -- LDO) HT7218 HT7225 HT7227 HT7230 HT7233HT7250及HT7818 HT7825 HT7827 HT7830 HT7833HT7850。HT78xx系列:型號(hào)全稱:HT7818 HT7825 HT7827 HT7830 HT7833HT7850;HT7818 HT7825 HT7827 HT7830 HT7833HT7850分別輸出:1.8v/2.5v/2.7v/3.0v/3.3v/5.0v;HT7818 HT7825 HT7827HT7830 HT7833 HT7850的輸出電流可以達(dá)到:500mA;HT7818 HT7825 HT7827 HT7830HT7833 HT7850只有2uA的靜態(tài)電流;HT7818 HT7825 HT7827 HT7830 HT7833HT7850的主要特色是僅5微安的極低靜態(tài)電流及低輸出入電壓差(Vdrop),因此HT7818 HT7825 HT7827HT7830 HT7833 HT7850可有效延長(zhǎng)電池壽命。此外,HT7818 HT7825 HT7827 HT7830 HT7833HT7850也擁有高輸入電壓及高輸出電壓準(zhǔn)確性的卓越性能。由于結(jié)合低靜態(tài)電流及低輸出入電壓差的特點(diǎn),使得HT7218 HT7225HT7227 HT7230 HT7233 HT7250及HT7818 HT7825 HT7827 HT7830 HT7833HT7850成為多顆電池應(yīng)用的最佳解決方案。HT7818 HT7825 HT7827 HT7830 HT7833HT7850內(nèi)建的保護(hù)功能有過(guò)電流及過(guò)熱保護(hù),為系統(tǒng)及IC提供必要的保護(hù)。
因HT7818 HT7825 HT7827 HT7830 HT7833HT7850超低功耗的優(yōu)點(diǎn),該組件特別適用于相機(jī)、手機(jī)及手提游戲機(jī)等使用電池之低功率產(chǎn)品。
利用CMOS技術(shù)制造的低壓差穩(wěn)壓器 HT7218 HT7225 HT7227 HT7230 HT7233 HT7250及HT7818HT7825 HT7827 HT7830 HT7833HT7850,可分別提供高達(dá)300及500毫安電流,固定輸出電壓支持1.8V到5V的寬廣范圍。因其超低功耗的優(yōu)點(diǎn),該組件特別適用于相機(jī)、手機(jī)及手提游戲機(jī)等使用電池之低功率產(chǎn)品。
HT78XX -- 500mATinyPowerTMLDO
General Description
The HT78XX series of positive,linearregulators features low quiescent current (5mA typ.) with low dropout voltage, making themidealfor battery applications. The devices are capable ofsupplying 500mAof output current continuously.
They are available with several fixedoutputvoltages ranging from 1.8V to 5.0V. Although designedprimarily asfixed voltage regulators, these devices can be usedwith externalcomponents to obtain variable voltages and currents.
These rugged devices have ThermalShutdownand Current Limiting to prevent device failure under the"Worst" ofoperating conditions.
Features
Output voltage ranges: Fixed range of 1.8V, 2.5V, 2.7V,3.0V,3.3V, 5.0V type.
Highly accuracy: ±2%
Low voltage drop: 360mV (typ.), VOUT=5.0V at 500mA
Guaranteed output current: 500mA
Low quiescent current: 5mA (typ.)
Current limiting
Over-temperature shutdown
SOT-89, TO-92 Packages