XS5803-SIP of Power Bank Total Solution

Topology: Boost
Input Voltage (min.): 5.00 V
Input Voltage (max.): 5.00 V
Switching Frequency (min.): 900.00 kHz
Switching Frequency (max.): 1500.00 kHz
Output 1: 5.00 V / 1.000 A

Original publication on 2014-05-19, revision 0.2


XS5803 is one SIP that it integrates Li-Battery Charge management、Battery power indicator、WLED Torch controller 、Boost converter and Li-Battery protection in only TSSOP20-PP package. This SIP can charge with 1A current and also can output 5V 1A to load such as smart phone or MID. It only need few components and can reduce the BOM area and BOM cost.


  • Charger input voltage-4.5V to 6V
  • Charger current-MAX 1A
  • Boost converter-MAX 26V output
  • Boost converter- 5V 1A
  • Boost converter Frequency-1.2MHz
  • Can set current limit with one resistor
  • Li Protection OCU-4.25V ODU-2.9V
  • Li Protection OCP-3A
  • 4 Level battery power indicator
  • Max 100mA WLED Torch Out
  • BSR control Logic
  • Have UVLO、OTP
  • 20-Pin TSSOP-PP Package


  Order Code SPEC Product series L
RDC typ.
RDC max.
Montageart Samples
744373240022 PDF WE-LHMI SMT Power Inductor 0.22 9.5 17 6.6 7.3 195 SMT

Other applications and Würth Elektronik products for this IC

  • XS5803
    Topology: Boost, Input Voltage (min.): 3.60 V, Input Voltage (max.): 4.20 V, Switching Frequency (min.): 900.00 kHz, Switching Frequency (max.): 1500.00 kHz