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The ABLIC S-1111B22MC-NYHTFG is a positive voltage regulator from the S-1111/1121 Series, developed using CMOS technology. It provides a fixed output voltage of 2.2 V with an accuracy of ±1.0%. The device features a low dropout voltage of 0.35 V typical at 100 mA and supports an output current of up to 150 mA when the input voltage is at least 1.0 V higher than the output. Current consumption is 35 μA typical during operation and 0.1 μA typical in power-off mode. It includes built-in overcurrent protection and an ON/OFF control circuit.
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Select this part for applications requiring a fixed 2.2 V rail with high accuracy. Ensure the input voltage remains within the 6.5 V maximum rating. Verify that the load current does not exceed 150 mA and that thermal dissipation constraints are met. Use tantalum capacitors with appropriate ESR for stability as specified in the standard circuit guidelines.
This component belongs to the S-1111/1121 Series of high ripple-rejection low dropout CMOS voltage regulators manufactured by Seiko Instruments Inc. The series offers selectable output voltages from 1.5 V to 5.5 V in 0.1 V steps. The S-1111 variant features a specific pin configuration distinct from the S-1121 series, utilizing a SOT-23-5 package for compact surface-mount integration.
Public confirmed substitute part numbers: None identified in source material.