LM53601AQDSXRQ1

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The LM53601AQDSXRQ1 is one of a wide range of DC-DC Switching Regulators available from Power Management Integrated Circuits (PMICs). It is a highly integrated, multi-phase switching regulator that produces a regulated output voltage over a wide input voltage range from 5 V to 32 V. The LM53601AQDSXRQ1 operates with switching frequencies up to 2.4 MHz, with an adjustable operating mode. It is optimized for multi-phase, synchronous buck applications, such as server and data processing equipment, point-of-load power systems, and other wide input voltage applications.The LM53601AQDSXRQ1 integrates a total of eight MOSFETs, a low-side MOSFET and a high-side MOSFET, four sets of MOSFETs each, to provide eights switching-phases. The LM53601AQDSXRQ1 can be used in a single phase and multi-phase configuration. The LM53601AQDSXRQ1 also provides programmable slope compensation that can be adjusted to optimize performance with associated inductors.The LM53601AQDSXRQ1 is a synchronous buck regulator that integrates high-side and low-side MOSFETs to provide a regulated voltage output from an unregulated voltage input. The LM53601AQDSXRQ1 switches the MOSFETs at the same frequency but with a variable duty cycle. At the input of the regulator, an external limiting resistor is connected to a feedback signal. In conjunction with an external shunt resistor, this signal is compared to a reference voltage and determines the output voltage by controlling the duty cycle of the switched MOSFETs. The phase-shifted output voltage is filtered by an output capacitor for a clean output voltage ripple.The operating mode of the LM53601AQDSXRQ1 can be adjusted from continuous current mode to discontinuous current mode. The operating mode is selected via an external resistor and the maximum output current is limited by an external current sense resistance and a power MOSFET. The LM53601AQDSXRQ1 is also equipped with an adjustable, low current consumption. Once the circuit reaches steady state, the current consumption of the LM53601AQDSXRQ1 is as low as 30 μA.Overall, the LM53601AQDSXRQ1 is an efficient and cost-effective solution for wide input voltage applications. It is designed to provide a stable output voltage over a wide input voltage range, while reducing the overall cost per Watt of the power supply. With the built-in MOSFETs and an adjustable operating mode, the LM53601AQDSXRQ1 provides an easy-to-implement, high-performance, cost-effective solution for multi-phase, synchronous buck applications.

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