BC847B/215
Nexperia USA Inc.
The Nexperia USA Inc. BC847B/215 is a bipolar transistor. It is RoHS3 Compliant and has an MSL Level 1 rating.
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3,000 pcs
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3000 pcs | On Request | 1 | On Request | On Request | 17+ | On Request | On Request |
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The LT3990IMSE#PBF is a monolithic buck switching regulator manufactured by Analog Devices. It accepts a wide input voltage range from 4.2V to 62V and consumes a low quiescent current of 2.5µA. This regulator is designed for high efficiency and low output ripple, particularly in low output current applications, utilizing Burst Mode operation.
Key electrical specifications include an adjustable switching frequency from 200kHz to 2.2MHz and a maximum output current of 350mA. It offers fixed output voltages of 3.3V and 5V, along with an accurate programmable undervoltage lockout feature. The integrated boost and catch diodes simplify the design, and a power good flag signals when the output voltage reaches 90% of the programmed level.
The LT3990IMSE#PBF is available in thermally enhanced MSOP and 3mm x 3mm DFN packages, suitable for surface mount applications. Its design considerations include FMEA fault tolerance in the MSOP package, ensuring output stays at or below regulation voltage during adjacent pin shorts or when a pin is left floating. This makes it suitable for automotive battery regulation, power for portable products, and industrial supplies.
The input voltage range is 4.2V to 62V.
The maximum output current is 350mA.
The typical quiescent current is 2.5µA.
The switching frequency is adjustable from 200kHz to 2.2MHz.
The fixed output voltages are 3.3V and 5V.
Yes, it has an accurate programmable undervoltage lockout.
The device is available in a 16-pin MSOP package and a 3mm x 3mm DFN package.