DC 4,7V-24V auf 4,2V 2A Lithium Battery Charger Stepdown

16,90 €
inkl. MwSt., zzgl. Versand
Auf Lager


Eingang: 4,7V-24V
Ausgang: 4,2V
Strom: Max. 2A

Eingang: 4,7V-24V
Ausgang: 4,2V
Strom: Max. 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

Some Applications:

  • 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

Package Includes:

  • 1x Lithium Battery Charger