ADP2370ACPZ-R7

ANALOG DEVICES  ADP2370ACPZ-R7  直流-直流开关降压逐步递减稳压器, 可调, 3.2V-15V输入, 800mV-14V输出, 800mA输出, LFCSP-8

The is a high-efficiency buck step-down DC-to-DC Converter for use with point of sales and transaction processing instruments. The total solution requires only three tiny external components. The buck regulator uses a proprietary high speed current mode, constant frequency PWM control scheme for excellent stability and transient response. The need for an external rectifier is eliminated by using a high efficiency synchronous rectifier architecture. To ensure the longest battery life in portable applications, the ADP2370 employ a power saving variable frequency mode that reduces the switching frequency under light load conditions. The ADP2370 operate from input voltages of 3.2 to 15V allowing the use of multiple alkaline/NiMH, lithium cells or other standard power sources. It offers multiple options for setting the operational frequency. It can be synchronized to a 600kHz to 1.2MHz external clock or it can be forced to operate at 600kHz or 1.2MHz via the FSEL pin.

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Synchronizable to an external clock

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<14µA in power saving mode PSM Quiescent current

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>90% Efficiency

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100% Duty cycle capability

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±1% Initial accuracy

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<1.2µA Low shutdown current