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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226 pcs
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226 pcs | On Request | 1 | On Request | On Request | 2018+ | On Request | On Request |
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The LT3742EUF#TRPBF is a dual step-down DC/DC switching regulator controller manufactured by LT. It is designed to drive high-side N-channel power MOSFETs. The controller utilizes a 500kHz fixed frequency current mode architecture, which ensures fast transient response and cycle-by-cycle current limiting.
Key electrical specifications include a wide input voltage range from 4V to 30V and a wide output voltage range from 0.8V to VIN. It also features a low shutdown quiescent current of 20μA and a precise 0.8V ±1.5% voltage reference. The output stages of the two controllers operate 180° out of phase, which effectively reduces input ripple current and the need for input capacitance.
An internal boost regulator provides a bias rail for the N-channel MOSFET gate drive, enabling low dropout and 100% duty cycle operation. The LT3742EUF#TRPBF is suitable for applications requiring independent controller operation or a single higher current output. It is available in a thermally enhanced 4mm x 4mm QFN package, designed for surface mounting.
Applications for this controller include satellite and cable TV set-top boxes, distributed power regulation, automotive systems, and super capacitor chargers.
4V to 30V.
0.8V to VIN.
500kHz fixed.
20μA.
0.8V ±1.5%.
24-QFN, 4mm x 4mm x 0.75mm, surface mount.