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1A高速LDO电压调整器CXLD64199 N沟道驱动晶体管基准电压源误差放大器过电流保护电路过热保护电路欠压锁闭电路(输入欠压锁闭)软启动电路相位补偿电路等构成
发表时间:2020-06-21浏览次数:98
1A高速LDO电压调整器CXLD64199 N沟道驱动晶体管基准电压源误差放大器过电流保护电路过热保护电路欠压锁闭电路(输入欠压锁闭)软启动电路相位补偿电路等构成
 

目录

1.产品概述       2.产品特点     PVU嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)PVU嘉泰姆

5.产品封装       6.电路原理图  PVU嘉泰姆

7.相关产品PVU嘉泰姆

   产品概述 返回TOPPVU嘉泰姆


    CXLD64199系列产品能从0.5V的输入电压开始工作。此外,因为是超低导通电阻,特别适用于需要在低电压同时高效率地输出大电流的应用。输出电压为±15mV/±20mV且精度高,内部由N沟道驱动晶体管,基准电压源,误差放大器,过电流保护电路(反馈),过热保护电路(TSD),欠压锁闭电路(输入欠压锁闭),软启动电路,相位补偿电路等构成。输出电压由激光微调在内部固定,能在0.5V~1.8V的范围内以0.1V的间隔选择产品。输出滤波电容(CL)还能对应陶瓷等低ESR电容。因为在IC启动时,软启动电路给CL充电,能抑制从VIN急剧地流向VOUT的冲击电流,并且,还能抑制由冲击电流带来的VIN的变动。在内部实施了软启动时间的最佳化。在CE引脚使IC成待机状态能大幅度降低消耗电流。此外,由内部开关能使CL中的充电电荷高速放电,迅速地返回VSS电平。并且,在IC内部CE引脚内置下拉电阻,在CE未连接电平时,使IC成待机状态。The CXLD64199 series is a low voltage input (0.5V) operation and provides high accuracy ±15mV/±20mV and can supply large current efficiently due to its ultra low on-resistance even at low output voltages. The series is ideally suited to the applications which require high current in low input/output voltages and consists of a Nch driver transistor, a voltage reference, an error amplifier, a current limiter, a fold-back circuit, a thermal shutdown (TSD) circuit, an under voltage lock out (UVLO) circuit, a soft-start circuit and a phase compensation circuit. Output voltage is selectable in 0.1V increments within a range of 0.5V to 1.8V using laser trimming technology and ceramic capacitors can be used for the output stabilization capacitor (CL). The inrush current (IRUSH) from VIN to VOUT for charging CL at start-up can be reduced and makes the VIN stable. The soft-start time is optimized internally. The CE function enables the output to be turned off and the series to be put in stand-by mode resulting in greatly reduced power consumption. At the time of entering the stand-by mode, the series enables the electric charge at the output capacitor (CL) to be discharged via the internal switch. As a result the VOUT pin quickly returns to the VSS level. The CE pull-down function keeps the IC to be in stand-by mode even if the CE pin is left open.PVU嘉泰姆

   产品特点 返回TOPPVU嘉泰姆


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   应用范围 返回TOPPVU嘉泰姆


● Smart phones / Mobile phonesPVU嘉泰姆

● Digital still cameras / CamcordersNote PC / Tablet PC 1/31 PVU嘉泰姆

● E-book Readers / Electronic dictionaries PVU嘉泰姆

● Wireless LANPVU嘉泰姆

   技术规格书(产品PDF) 返回TOP PVU嘉泰姆


     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持PVU嘉泰姆

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产品封装图 返回TOPPVU嘉泰姆


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电路原理图 返回TOPPVU嘉泰姆

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