LT3042EDD#PBF

LINEAR TECHNOLOGY  LT3042EDD#PBF  电压稳压器, LDO, 可调, 1.8V至20V输入, 350mV压差, 0V至15V/0.2A输出, DFN-10

The is a high performance low-dropout Linear Regulator featuring LTCs ultra low noise and ultrahigh PSRR architecture for powering noise sensitive RF applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3042 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB. The device supplies 200mA at a typical 350mV dropout voltage. Operating quiescent current is nominally 2mA and drops to <<1µA in shutdown. Its wide output voltage range while maintaining unity-gain operation provides virtually constant output noise, PSRR, bandwidth and load regulation, independent of the programmed output voltage. Additionally, the regulator features programmable current limit, fast start-up capability and programmable power good to indicate output voltage regulation. The LT3042 is stable with a minimum 4.7µF ceramic output capacitor.

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Fast start-up capability

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Precision enable/UVLO

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Parallelable for lower noise and higher current

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2nV/√Hz at 10kHz Ultralow spot noise

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100µA SET pin current - ±1% Initial accuracy