LM5025CMTCE/NOPB

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The LM5025CMTCE/NOPB is a 3-pin synchronous buck controller for two-phase inductive load applications. The controller provides an adjustable output voltage, current limiting, internal power source and current phase-shift control. It operates from an input voltage range of 7V to 32V and provides an adjustable output voltage between 0.8V and 24V. The switching frequency is adjustable from 50kHz to 500kHz. The device also provides a power good signal to indicate operation.The LM5025CMTCE/NOPB is suitable for a wide range of applications ranging from FM, GSM, and Bluetooth radios to digital signal processor (DSP) core applications. It can be used to regulate any DC-to-DC switch controller using any inductive load. Additionally, it is capable of driving MOSFETs and low-voltage bipolar transistors.The LM5025CMTCE/NOPB features an integrated low dropout voltage regulator with an adjustable current limit and an adjustable switching frequency. It also has a built-in current-sense amplifier, a soft-start amplifier, and an over-temperature protection circuit. The current limit, switching frequency, and ultra-low input voltage can be programmed via external pins or a low-power SPI interface.The LM5025CMTCE/NOPB is a two-phase buck converter with two integrated high-side and two integrated low-side MOSFETs. The two switching MOSFETs are cross-coupled in order to reduce the input ripple current. The cross-coupled MOSFETs are parallel connected, which enables the output voltage to be regulated within a narrow tolerance.The power supply efficiency of the LM5025CMTCE/NOPB is very high due to the synchronous switching control. The controller also features a low EMI operation since it uses pulse-width modulation to regulate the output voltage. Furthermore, it employs an internal system voltage loop, which allows it to maintain a stable output voltage over a wide range of operating conditions.The LM5025CMTCE/NOPB adopts a ripple current mode control, which minimizes power losses and reduces the complexity of the external components. This reduces the cost and size of the system. Additionally, the integrated gate drivers and current-sense amplifier reduce the external components required for operation.In summary, the LM5025CMTCE/NOPB is a synchronous buck controller suitable for a variety of two-phase inductive load applications. It features an adjustable output voltage, current limiting, internal power source, and current phase-shift control. Additionally, it achieves ultra-high efficiency due to its pulse-width modulation and synchronous switching control. Additionally, its small size and low power consumption make it an ideal solution for many applications.

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