LT3042EMSE#PBF

LINEAR TECHNOLOGY  LT3042EMSE#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, MSOP-10

The is a 200mA High Performance RF Linear Regulator featuring ultralow noise and ultrahigh PSRR architecture for powering noise sensitive RF applications. Designed as a precision current reference followed by a high performance voltage buffer, this can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB. The LT3042"s wide output voltage range 0 to 15V 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. Built-in protection includes reverse battery protection, reverse current protection, internal current limit with fold back and thermal limit with hysteresis.

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Ultralow RMS noise 0.8µVRMS, 10Hz to 100kHz

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Ultralow spot noise 2nV/√Hz at 10kHz

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Ultrahigh PSRR 79dB at 1MHz

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Single capacitor improves noise and PSRR

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±1% Initial accuracy 100µA SET pin current

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Single resistor programs output voltage

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High bandwidth 1MHz

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Programmable current limit

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Low dropout voltage

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Programmable power good

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Fast start-up capability

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Precision enable/UVLO

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Parallel able for lower noise and higher current

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Internal current limit with fold back

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4.7µF Ceramic minimum output capacitor

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Reverse battery and reverse current protection