LT3682IDD#PBF

LINEAR TECHNOLOGY  LT3682IDD#PBF  直流-直流开关降压逐步递减稳压器, 可调, 3.6V-36V输入, 800mV-20V输出, 1A输出, DFN-12

The is an adjustable frequency monolithic buck Switching Regulator accepts input voltage up to 36V. A high efficiency 0.5R switch is included on the device along with a boost diode and the necessary oscillator, control and logic circuitry. Current-mode topology is used for fast transient response and good loop stability. A SYNC pin allows the user to synchronize the part to an external clock and to choose between low ripple Burst Mode® operation and standard PWM operation. The low ripple Burst Mode® maintains high efficiency at low output currents while keeping output ripple below 15mV in typical applications. Shutdown reduces input supply current to less than 1µA while a resistor and capacitor on the RUN/SS pin provide a controlled output voltage ramp soft-start. A power good flag signals when VOUT reaches 90% of the programmed output voltage.

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Short-circuit protection

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Soft-start capability

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Power good flag

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Overvoltage lockout protects circuits through 60V transients

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Synchronizable between 300kHz and 2.2MHz

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0.8V Feedback reference voltage