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Recommended XBL4001 40V/5A Buck DCDC Power Chip
Release Time:2025-6-25 16:31:52



      In today's electronic devices that constantly pursue high performance and low power consumption, the importance of power management chips is self-evident. TheXBLW-XBL4001chip, mainly promoted by XBL, with its excellentdesignand stableperformance, brings apracticalnew choice to the power management field.





I. Chip Overview

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      XBLW-XBL4001is abuck DC converterwitha wide input voltage range of 4.5V~40Vand an adjustable output voltage range between1.235V~37V. Its fixedswitching frequencyis150kHz, with a maximumoutput currentof5A (ESOP-8 package). The chip usesvoltage-mode asynchronous PWMcontrol, featuresON/OFF shutdown control, and can be started and stopped by logic level control.

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II.Performance Features

01 丨 Wide Input Voltage




XBLW-XBL4001 4.5V~40Vwide input voltagerangecan adapt to various power supply input scenarios. It handles complex circuit environments and provides stable power support for various sensors, controllers, etc.

02 丨 Adjustable output voltage





XBLW-XBL4001has an adjustable output voltage range of1.235V~37Vto meet the needs of different loads. By adjusting the external resistors using the formulaUout=1.235*(1+R2/R1)to achieve different output voltages.

03 | Built-in MOSFET




XBLW-XBL4001integratesMOSFETs,simplifyingcircuit designandreducingthe use of peripheral components. When used, only a small number of peripheral components are required for normal operation. This not only improvesthe system's integrationand reliability, but also savesengineers valuable

04 丨 Low-power standby mode




XBLW-XBL4001featuresa low-power standby modethat effectively improves system energy efficiency. In standby mode, the chip's power consumptionstatic currentis only3.5mAwhich is particularly important for devices that need to run for a long time, effectively extending the device's life


III.Protection Features and Control Characteristics

01 丨 Over-temperature protection




XBLW-XBL4001 is equipped withover-temperature protectionfunction, which can monitor the chip temperature in real-time. When the temperature is too high, the chip will automaticallyshut down the output,avoidingchip damagecaused byoverheating, ensuring the safe operation of the device under extreme conditions.

02 丨 Overcurrent Protection




XBLW-XBL4001featuresovercurrent protectionfunction, which canprecisely limit the output current.It canpreventfailurescaused by the overload or short circuit of downstream devicesandprovidesstableandsafe protectionfor the chip and the entire system.

03 丨 Disable control function




XBLW-XBL4001hasa shutdown control function, which can becontrolled bylogic levelto output start/stop. When in use, it is sufficient to connect the chip's EN pin tohigh level or floatingtoenable the output (high open, low close).



IV.Typical Application Circuits

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01

5V/5A output circuit

      XBLW-XBL4001When outputting5V/5Acurrent, the peripheral circuit design is relatively simple. According to the formulaUout=1.235*(1+R2/R1), when R1=1KΩ, R2=3KΩ is sufficient to obtain an output voltage of 5V.

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02

12V/4A output circuit

      XBLW-XBL4001When outputting12V/4A, according to the formulaUout=1.235*(1+R2/R1), when R1=1KΩ, R2=8.7KΩ will yield an output voltage of 12V.

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03

Standby mode control circuit

      XBLW-XBL4001 standby mode control circuit can control the chip output via logic level control. The logic for the EN pin of XBLW-XBL4001 is high or floating to enable the output and low to disable the output (i.e., high-open, low-close). When in use, it is sufficient to connect the corresponding logic level to the sixth pin (EN pin) of XBL4001 to enable the output.

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V. Packaging Form

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     XBLW-XBL4001providestwo package types:SOP-8andESOP-8.The SOP-8 packagehas a maximumload current of 2Aand is suitable for circuits with general low current requirements.The ESOP-8package isbased onSOP-8andoptimizesheat dissipation performancecompared tothe SOP-8packagewith a loadcapacity increased to5Aand is suitable for high power density designs, effectively improving the chip's heat dissipation efficiency and extending its service life.

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VI. Electrical Performance Parameters

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VII.Absolute Maximum Ratings and Operating Conditions

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      Note: Exceeding the maximum rated stress may cause permanent damage to the equipment. Please note that this only indicates the stress level and does not mean that the equipment will continue to operate normally under these or other conditions at or above the indicated values. Prolonged exposure to absolute maximum rated values may adversely affect the reliability of the equipment and should be avoided as much as possible during use.

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VIII. Conclusion




      XBLW-XBL4001The chip provides a robust solution for various power management applications with stable and reliable performance, comprehensive protection features, and flexible configuration. It features a wide input voltage range, adjustable output voltage characteristics, a low-power standby mode, and integrated protection mechanisms, making it easy to meet power management requirements in different scenarios. Whether it is industrial equipment, automotive electronics, communication power supplies, or consumer electronic products, XBLW-XBL4001the chip can ensure the high efficiency and stability of device power management with its excellent performance, demonstrating broad application potential.




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