LTC3526BEDC#TRMPBF

LINEAR TECHNOLOGY  LTC3526BEDC#TRMPBF  直流-直流开关升压逐步递增稳压器, 可调, 800mV-5V输入, 1.6V-5.25V输出, 0.5A输出, DFN-6

The is a synchronous fixed frequency step-up DC-to-DC Converter with output disconnect. Battery life in single AA/AAA powered products is extended further with an 850mV start-up voltage and operation down to 500mV once started. A switching frequency of 1MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current-mode PWM design is internally compensated, reducing external parts count. The LTC3526B features continuous switching at light loads. Anti-ringing control circuitry also reduces EMI concerns by damping the inductor in discontinuous mode. Additional features include a low shutdown current of under 1µA and thermal shutdown.

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Output disconnect

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Integrated soft-start

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Current-mode control with internal compensation

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Low noise PWM operation

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Internal synchronous rectifier

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Logic controlled shutdown IQ<1µA

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Anti-ringing control

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Up to 94% efficiency

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Delivers 3.3V at 100mA from a single Alkaline/NiMH cell or 3.3V at 200mA from two cells