DC-DC 1.4-24V 3A LTC4002 Charging Power Module than MAX1879 QS-12L4.2-2A

SKU: 1941757

Make an Inquiry

0 review(s) | Add your review

    7.00 7.00 Piece 7.0 USD

    ¥ 48.00

    Option not available

    This combination does not exist.

    Add to Cart

    Brand: QSKJ

    Model: QS-12L4.2-2A

    The LTC4002 is DC 4.7-24V to 4.V switching regulator, widte pressure, has undervoltage protection, conversion efficiency up to 90%, it very suitable for Lithium battery.


    • Input Voltage :4.7-24V (when the input voltage exceeds 12V, output current 2A, please enhance heat sink)

    • Charge voltage: 4.2V

    • Charge voltage accuracy: ± 1%

    • Suitable for battery: 3.6V 3.7V Lithium Battery 500mAh ~ 15000mAh

    • Charging current: 2A

    • Charge current accuracy: ± 5%

    • Charging indication: when charging, Blue LED bright; when full charge, Blue LED off ( recommend charge one more hour when the Blue LED turn off )

    • Battery anti-reflux: NONE ( please Series an Diode (SK34,SK54,SS34 etc.) at the input voltage Postive )

    • Conversion efficiency: Max 90% (5V input)

    • 12V input efficiency is about 85%

    • 24V input efficiency is about 80%

    • Switching frequency: 500kHZ

    • Input voltage under-voltage protection: 4.2V (TYP)

    • Battery intrusion Current: 10uA (without battery polarity protection)

    • Operating temperature: Industrial (-40 ° C to +85 ° C)

    • Full load temperature rise: 30 ° C

    • Reverse battery protection: No


    • DIY a lithium battery charger. power adapter (DC4.7-24V) to charge lithium battery.

    • Fast lithium battery charger, 2A can charge lithium battery faster.

    • Some Industrial applications

    • Solar panels to charge lithium batteries