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300毫安低静态电流CMOS线性稳压器ADP170/ADP171数据表
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The ADP170/ADP171 are low voltage input， low quiescent current， low-dropout （LDO） linear regulators that operate from 1.6 V to 3.6 V and provide up to 300 mA of output current. The low 66 mV dropout voltage at 300 mA load improves efficiency and allows operation over a wide input voltage range. The low 23 µA of quiescent current at a 0 mA load makes the ADP170/ ADP171 ideal for battery-operated portable equipment. The ADP170 is capable of 31 fixed-output voltage options， ranging from 0.8 V to 3.0 V. ADP171 is an adjustable version， which allows output voltages that range from 0.8 V to 3.0 V via an external divider. The ADP170/ADP171 are optimized for stable operation with small 1 µF ceramic output capacitors. Ideal for powering digital processors， the ADP170/ADP171 exhibit good transient performance and occupy minimal board space. Compared with commodity types of LDOs， the ADP170/ADP171 provide 20 dB to 40 dB better power supply rejection ratio （PSRR） at 100 kHz， making the ADP170/ADP171 an ideal power source for analogto-digital converter （ADC） mixed-signal processor systems and allowing use of smaller size bypass capacitors. In addition， low output noise performance without the need for an additional bypass capacitor further reduces printed circuit board （PCB） component count. Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP170/ADP171 are available in tiny 5-lead TSOT for the smallest footprint solution to meet a variety of portable power applications.
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