LTC3621IMS8E-2#PBF
数据手册.pdfLINEAR TECHNOLOGY LTC3621IMS8E-2#PBF 直流-直流开关降压逐步递减稳压器, 可调, 2.7V-17V输入, 600mV-17V输出, 1A输出, MSOP-8
The is a high-efficiency synchronous monolithic Step-down Regulator for use with portable-handheld scanners. The switching frequency is fixed to 2.25MHz with a ±40% synchronizing range. The regulator features ultralow quiescent current and high efficiencies over a wide VOUT range. The step-down regulator operates from an input voltage range of 2.7 to 17V and provides an adjustable output range from 0.6V to VIN while delivering up to 1A of output current. A user-selectable mode input is provided to allow the user to tradeoff ripple noise for light load efficiency. Burst Mode® operation provides the highest efficiency at light loads, while pulse-skipping mode provides the lowest voltage ripple. The MODE pin can also be used to allow the user to sync the switching frequency to an external clock.
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- Full dropout operation with low IQ
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- Current-mode operation for excellent line and load transient response
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- Synchronizable to external clock
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- Internal compensation and soft-start
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- Over-temperature protection
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- 95% Maximum efficiency
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- <3.5µA Low quiescent current in zero-current shutdown
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- ±1% Output voltage accuracy