XS5603-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 / 2.000 A
Output 2: 5.00 V / 0.500 A
Output 3: 5.00 V / 1.000 A

Original publication on 2013-09-18, revision 0.2


XS5603 is one SIP that it integrates Li-Battery Charge management、Battery power indicator、WLED Torch controller and Boost converter in only TSSOP16-PP package. This SIP can charge with 1A current and also can output 5V 1A ~2A 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 ~1.5A
  • Boost converter Frequency-1.2MHz
  • Can set current limit with one resistor
  • 4 Level battery power indicator
  • Max 100mA WLED Torch Out
  • BSR control Logic
  • Have UVLO、OTP
  • 16-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

  • XS5603
    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