LT1676CN8#PBF

LINEAR TECHNOLOGY  LT1676CN8#PBF  直流-直流开关降压逐步递减稳压器, 可调, 7.4V-60V输入, 1.24V-51V输出, 700mA输出, DIP-8

The is a high efficiency buck/step-down Switching Regulator contains several features to enhance efficiency. The monolithic die includes all oscillator, control and protection circuitry. The part can accept input voltages as high as 60V and contains an output switch rated at 700mA peak current. Current-mode control offers excellent dynamic input supply rejection and short-circuit protection. The internal control circuitry is normally powered via the VCC pin, thereby minimizing power drawn directly from the VIN supply. The action of the LT1676 switch circuitry is also load dependent. At medium to high loads, the output switch circuitry maintains high rise time for good efficiency. At light loads, rise time is deliberately reduced to avoid pulse skipping behaviour.

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Adaptive switch drive maintains efficiency at high load without pulse skipping at light load

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True current mode control

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Synchronizable to 250kHz

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100kHz Fixed operating frequency

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30µA Low supply current in shutdown