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الصفحة الرئيسية > الدوائر المتكاملة لإدارة الطاقة (PMIC) > محولات التيار المستمر-التناوب المستمر > LM2842XQMKX

LM2842XQMKX

42V 0.5A buck converter, 550kHz, SOT-23-6

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جزء الشركة المصنعة ： جزء الشركة المصنعة

LM2842XQMKX

الحزمة ： الحزمة

SOT-23-6 (2.9x1.6mm)

العلامة التجارية ： العلامة التجارية
فئات المنتجات:：فئات المنتجات
الالتزام بالجودة
الشحن والدفع
الخدمة والتغليف
دليل المنتج
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الوصف

نظرة عامة على المنتج

The LM2842XQMKX from TI is a 42V 0.5A SIMPLE SWITCHER step-down converter with 550kHz switching in SOT-23-6 for distributed power and industrial supplies.

المواصفات الرئيسية

الحزمة SOT-23-6 (2.9×1.6mm)

الميزات

  • See datasheet for complete specifications
  • Industry-standard package

التطبيقات

  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management

The LM2842XQMKX from TI is a 42V 0.5A SIMPLE SWITCHER step-down converter with 550kHz switching in SOT-23-6 for distributed power and industrial supplies.

The LM2842XQMKX is a 42V 0.5A step-down DC-DC converter from Texas Instruments in SOT-23-6 with 550kHz switching frequency (X suffix). The internal N-channel MOSFET is rated for 0.5A peak current with a typical RDS(on) of 500mOhm. The converter uses peak current-mode control: the error amplifier compares the FB pin voltage to the 0.765V internal reference, and its output (COMP) sets the peak inductor current threshold. The internal slope compensation prevents sub-harmonic oscillation at duty cycles above 50%. The bootstrap capacitor on CB provides the gate drive voltage for the internal high-side N-channel MOSFET (VSW + 5V approximately). An external Schottky catch diode (recommended SS34 or similar) is required to provide a current path for the inductor during the off-time. The EN pin has an internal 800k-ohm pull-up resistor, so leaving it floating enables the device automatically. The maximum duty cycle is approximately 90%, allowing output voltages up to 0.9 x VIN. The input undervoltage lockout (UVLO) threshold is 3.9V (rising). The thermal shutdown activates at 165C with 15C hysteresis. The QMKX suffix specifies SOT-23-6, AEC-Q100 qualified, 550kHz switching frequency.

دبوس الاسم النوع الوظيفة
1 CB المخرجات Bootstrap capacitor (connect 0.1uF to SW for high-side gate drive)
2 GND الطاقة أرضي
3 FB المدخلات Feedback (set output via resistor divider, 0.765V reference)
4 EN المدخلات Enable (HIGH=ON, LOW=shutdown, internal pull-up)
5 VIN الطاقة Input supply (4.5-42V)
6 SW المخرجات Switch node (connects to inductor and catch diode)
  • Industrial control
  • Consumer electronics
  • Communication equipment
  • Power management
    • الشركة المصنعة رقم الجزء الحزمة الملاحظات
    تكساس إنسترومنتس LM2842YQMKX SOT-23-6 550kHz switching frequency version
    تكساس إنسترومنتس LM2841XQMKX SOT-23-6 0.3A version, same pinout
    Monolithic Power MP2459DN-LF-Z SOT-23-6 55V 0.5A buck, 1.5MHz, similar
    Diodes Inc. AP64150QFN-7 DFN-6 40V 0.5A buck, 1.2MHz
    تكساس إنسترومنتس LMR16006XDDCR SOT-23-6 60V 600mA buck, 1.5MHz
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    ضمان الجودة

    Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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    Email: info@materialparts.com
    Tel / WhatsApp: +86 13760382860
    Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

     

    الشحن والدفع

    Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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      US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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    • International Express: 3 – 7 working days globally
    • Air Freight: 7 – 12 working days
    • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
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      Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

    3. General Order Rules & Notes

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      We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

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    Contact Information

    Email: info@materialparts.com

    Tel / WhatsApp: +86 13760382860

    الخدمة والتغليف

    Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

    Core Services

    1. One-stop Sourcing & BOM Support

    We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

    2. Genuine Product Guarantee & Full-process Quality Inspection

    All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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    Professional Packaging Standards

    Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

    1. General Packaging Specifications

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    2. Classified Professional Packaging

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    • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

    3. Custom Packaging Services

    We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

    Contact Information

    For service consultation or packaging customization, please feel free to contact us:
    Email: info@materialparts.com
    Tel / WhatsApp: +86 13760382860
    Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
     

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