厂商：Freescale
类别：16位单片机
厂商：Linear
类别：线性稳压器（LDO ）
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：
类别：ATtiny系列单片机
类别：板到板窄间距连接器
厂商：Kyocera
类别：晶体
我要询价我要收藏
特点 Dropout Voltage: 0.5V Output Current: 300mAQuiescent Current: 12μA No Protection Diodes Needed Adjustable Output from 3.8V to 20VFixed Output Voltages: 3V, 3.3V, 5VControlled Quiescent Current in Dropout Shutdown I Q = 6μA Reverse Battery ProtectionNo Reverse CurrentThermal Limiting典型应用典型应用描述The LT?1521/LT1521-3/LT1521-3.3/LT1521-5 are low dropout regulators with micropower quiescent current and shutdown. These devices are capable of supplying 300mA of output current with a dropout voltage of 0.5V. Designed for use in battery-powered systems, the low quiescent current, 12μA operating and 6μA in shutdown, makes them an ideal choice. The quiescent current is well controlled; it does not rise in dropout as it does with many other low dropout PNP regulators.Other features of the LT1521/LT1521-3/LT1521-3.3/ LT1521-5 include the ability to operate with very small output capacitors. They are stable with only 1.5μF on the output while most older devices require between 10μF and 100μF for stability. Small ceramic capacitors can be used, enhancing manufacturability. Also, the input may be connected to voltages lower than the output voltage,including negative voltages, without reverse current flow from output to input. This makes the LT1521 series ideal for backup power situations where the output is held high and the input is low or reversed. Under these conditions only 5μA will flow from the output pin to ground.