L6751B

Series:	--
Packaging:	Tray
Part Status:	Obsolete
Applications:	Controller, DDR, Intel VR12, AMD SVI
Voltage - Input:	10.8 V ~ 13.2 V
Number of Outputs:	2
Voltage - Output:	0.25 V ~ 1.52 V
Operating Temperature:	0°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	68-VFQFN Exposed Pad
Supplier Device Package:	68-VFQFPN (8x8)

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L6751B Application Field and Working PrincipleThe L6751B is a multi-voltage regulator designed with a variety of features tailored to special purpose applications. It utilizes an advanced integrated circuit technology to provide powerful capabilities, yet remains very compact and efficient. The L6751B is a high performance voltage regulator that is specifically designed for use in low power applications, notably those in the automotive, automotive accessory and telecom industries.The L6751B includes a highly accurate voltage reference, robust fet Bias voltage rail and two integrated P-channel MOSFETs for tracking and regulation respectively. The L6751B provides five adjustable voltage lines: two for input, two for output and one for controlling the output stage. The L6751B also operates in a synchronous mode when used in automotive and telecom applications, further increasing its efficiency and providing a more predictable output.The L6751B operates in three distinct operating modes, each offering the user different performance characteristics. The first mode is non-tracking, which is the default mode to be used when both the input and output of the regulator are static. This mode is preferred in applications that do not need to track any changes to the input voltage or output load. The second mode is tracking, which is best suited to applications where the input and output voltages may need to be tracked, such as automotive and telecom applications, or applications where there is a high degree of voltage load shifting. The third mode is synchronous, which is the most efficient and predictable mode for automotive and telecom applications. In the tracking mode, the L6751B provides two tracking sources: the input voltage and the output voltage. The user has the option of configuring the MOSFETs to track either one or both the sources. In the synchronous mode, the L6751B provides two tracking frequencies, one for the input and the other for the output voltage. This way, the L6751B can remain in sync with both the input and the output voltages, allowing for optimal efficiency and predictable output performance. The L6751B is equipped with an overvoltage protection, which limits the output voltage to a predetermined level and turns off the MOSFETS in the event of an overvoltage situation. The L6751B also utilizes a wide input and output operating temperature range, which allows it to be used in a wide array of low power applications. Lastly, the L6751B features a built-in voltage supervisor, which monitors the output voltage and provides feedback control to the regulator. This ensures that the output voltage remains stable and within the required specifications.The L6751B is a highly functional and efficient voltage regulator, making it an ideal choice for a variety of low power applications in the automotive, automotive accessory and telecom industries. Its wide input and output temperature range, highly accurate voltage reference and two tracking modes provide the user with the flexibility and reliability required for the most demanding applications.

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