厂商：Freescale
类别：16位单片机
厂商：Linear
类别：精准放大器
类别：DC/DC控制器
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Atmel
类别：ATmega系列单片机
类别：A/D 数据转换器
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特点 Very Low Dropout: 90mV at 150mA 30mV at 50mA (LTC1844-3.3) Wide Input Voltage Range: 1.6V to 6.5VLow 35μA Supply Current, Even in Dropout Low Noise: 60μV RMS (10Hz to 100kHz) ±1.75% Voltage Accuracy Over Temperature, Voltage and Current RangesFast Transient Response10nA Supply Current in ShutdownFixed Output Voltages: 1.5V, 1.8V, 2.5V, 2.8V, 3.3VAdjustable Output Voltage: 1.25V to 6VOutput Current LimitReverse-Battery and Reverse-Current ProtectionNo Protection Diodes NeededStable with 1μF Output CapacitorStable with Ceramic CapacitorsShort-Circuit and Thermal Overload ProtectionLow Profile (1mm) SOT-23 Package典型应用典型应用描述The LTC?1844 Series are low noise VLDO TM (very low dropout) linear regulators designed for low power/portable applications. These regulators can operate from input voltages as low as 1.6V. Typical output noise is only 30μV RMS and typical dropout for the LTC1844-3.3 is just 90mV at the maximum load current of 150mA, reducing to 30mV at 50mA.The internal P-channel MOSFET pass transistor requires no base current, allowing the device to draw only 35μA during normal operation, independent of the dropout voltage and load current. The quiescent current falls to a negligible 10nA during shutdown.Other features include high output voltage accuracy, excellent transient response, stablity with ultralow ESR ceramic capacitors as small as 1μF, reverse-battery and reverse-current protection, short-circuit and thermal overload protection and output current limiting.The LTC1844 regulators are available in a low profile (1mm) SOT-23 (ThinSOT TM ) package.