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JW5222SOTB#TRPBF

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Joulwatt(杰华特) DC-DC Converters, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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JW5222SOTB#TRPBF

Joulwatt(杰华特) · DC-DC Converters · SOT-23-6

JW5222SOTB#TRPBF from Joulwatt(杰华特), in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 EN input Drive EN high to turn the regulator on and low to turn it off; EN rising threshold is 1.5V (min) and falling threshold is 0.4V (max).
2 GND power_in Ground pin.
3 SW output Switching node that supplies power to the output; connect the output LC filter from SW to the output load.
4 VIN power_in Input voltage pin that supplies the IC; connect a 2.5V to 6V supply and bypass VIN to GND with a suitably large capacitor.
5 POK output Open-drain power-good output that connects to the output through a 10kΩ resistor and is high when VFB is within ±12.5% of VREF.
6 FB input Output feedback pin that senses the output through a resistive divider and is regulated by the control loop to 0.6V.

Key specifications

Parameter Value
Manufacturer Joulwatt(杰华特)
Package SOT-23-6
Category Power Management (PMIC)
Pins 6

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VIN Under Voltage Lockout Threshold VIN_UVLO 2.3 2.45 2.55 V VIN rising 4
VIN Over Voltage Protection Threshold VIN_OVP 6.6 6.88 7.1 V VIN rising 4
Regulated Feedback Voltage VFB 0.588 0.6 0.612 V 2.5V<VIN<6V 4
PFET Current Limit ILIM_TOP 3.2 3.7 4.3 A Duty Cycle=65% 4
Switch Frequency FSW 0.8 1 1.2 MHz IOUT=1A 4
POK Low Threshold VPOKL 500 525 550 mV VFB falling 4
POK High Threshold VPOKH 660 695 730 mV VFB rising 4
Shutdown Current ISHDN 0.1 1 μA VEN=0V 4
Quiescent Current IQ 60 80 μA VEN=5V, IOUT=0A, VFB=VREF*105% 4
PFET Leakage Current ILEAK_P 0.1 1 uA VIN=5.5V, VEN=0V, VSW=0V 4
NFET Leakage Current ILEAK_N 0.1 1 uA VIN=5.5V, VEN=0V, VSW=5.5V 4
VIN Under Voltage Lockout Hysteresis VIN_UVLO_HYST 200 mV VIN falling 4
VIN Over Voltage Protection Hysteresis VIN_OVP_HYST 360 mV VIN falling 4
PFET On Resistance RDSON_P 110 mΩ VIN=3.6V, ISW=200mA 4
NFET On Resistance RDSON_N 90 mΩ VIN=3.6V, ISW=-200mA 4
Minimum On Time TON_MIN 70 ns 4
Maximum Duty Cycle DMAX 100 % 4
Soft-start Time tss 1 ms VOUT=1.8V 4
EN Input Logic High Voltage VEN_H 1.5 V VEN rising, FB=0.4V 4
EN Input Logic Low Voltage VEN_L 0.4 V VEN falling, FB=0.4V 4
Thermal Shutdown Threshold TSHDN 150 ℃ 4
Temperature Hysteresis THYS 15 ºC 4
All Pins Voltage -0.3 7 V All pins 2
SW Pin Voltage -0.3 7 V SW pin 2
SW Pin Transient Undershoot -1.7 V SW pin, 40ns 2
SW Pin Transient Overshoot 7.1 V SW pin, 70ns 2
Junction Temperature 150 ºC 2
Lead Temperature 260 ºC 2
ESD Susceptibility (Human Body Model) 2 kV Human Body Model 2
Recommended Operating Junction Temperature Range -40 125 ºC 3
Storage Temperature Range -65 150 ºC 3
Recommended Max Case Temperature TC 122 ºC 3
Recommended Max Power Loss PD 0.45 W PD@25ºC 3
Junction-to-Case Thermal Resistance RθJC 130 ºC/W JESD51-7, 4-layer PCB 3
Junction-to-Ambient Thermal Resistance RθJA 220 ºC/W JESD51-7, 4-layer PCB 3
Junction-to-Board Thermal Resistance RθJB 36.1 ºC/W JESD51-7, 4-layer PCB 3
Junction-to-Top Characterization Parameter ψJT 2.3 ºC/W JESD51-7, 4-layer PCB 3
Junction-to-Board Characterization Parameter ψJB 35.3 ºC/W JESD51-7, 4-layer PCB 3

CAD (KiCad official)

  • Symbol: JW5222SOTB#TRPBF
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: jw5222sotb-trpbf-etched.step / jw5222sotb-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jw5222sotb-trpbf.step / jw5222sotb-trpbf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Joulwatt(杰华特) datasheet (18 pp, sha256 3de13819100915e0, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF