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XC9236A33DMR-G

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Torex Semicon DC-DC Converters, SOT-25-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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XC9236A33DMR-G

Torex Semicon · DC-DC Converters · SOT-25-5

XC9236A33DMR-G from Torex Semicon, in a SOT-25-5. 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 VIN power_in Power input with operating range 2.0V to 6.0V for A/B/C types (absolute maximum 6.5V), to be decoupled with a ceramic CIN placed close to VIN and VSS.
2 VSS power_in Ground pin.
3 CE/MODE input High-active enable pin; for XC9236 H level is 0.65V to 6.0V (synchronous PWM/PFM automatic switching) and L level is 0V to 0.25V (stand-by), and it must not be left open.
4 VOUT input Fixed output voltage sense pin for A/B/C/E/G types (FB sense pin for D/F types), absolute maximum 6.5V.
5 Lx output Switching output to the inductor, with voltage range -0.3V to VIN+0.3V and absolute maximum current of ±1500mA.

Key specifications

Parameter Value
Manufacturer Torex Semicon
Package SOT-25-5
Category Power Supply Chip
Pins 5

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage Range VIN 2 6 V 7
Maximum Output Current IOUTMAX 600 mA VIN=VOUT(E)+2.0V, VCE=1.0V, with external components 7
UVLO Voltage VUVLO 1 1.4 1.78 V VCE=VIN, VOUT=0V, Lx pin holding L level 7
Supply Current IDD 21 35 μA VIN=VCE=5.0V, VOUT=VOUT(E)×1.1V 7
Stand-by Current ISTB 0 1 μA VIN=5.0V, VCE=0V, VOUT=VOUT(E)×1.1V 7
Oscillation Frequency fOSC 2550 3000 3450 kHz VIN=VOUT(E)+2.0V, VCE=1.0V, IOUT=100mA 7
PFM Switching Current IPFM 170 220 270 mA 3.0MHz, 1.8V≤VOUT(E); VIN=VOUT(E)+2.0V, VCE=VIN, IOUT=1mA 12
PFM Duty Limit DTYLIMIT_PFM 200 300 % VCE=VIN=(C-1), IOUT=1mA 7
Maximum Duty Cycle DMAX 100 % VIN=VCE=5.0V, VOUT=VOUT(E)×0.9V 7
Minimum Duty Cycle DMIN 0 % VIN=VCE=5.0V, VOUT=VOUT(E)×0.1V 7
Lx SW H ON Resistance 1 RLxH 0.35 0.55 Ω VIN=VCE=5.0V, VOUT=0V, ILx=100mA 7
Lx SW H ON Resistance 2 RLxH 0.42 0.67 Ω VIN=VCE=3.6V, VOUT=0V, ILx=100mA 7
Lx SW L ON Resistance 1 RLxL 0.45 0.65 Ω VIN=VCE=5.0V (R&D value) 7
Lx SW L ON Resistance 2 RLxL 0.52 0.77 Ω VIN=VCE=3.6V (R&D value) 7
Lx SW H Leak Current ILEAKH 0.01 1 μA VIN=VOUT=5.0V, VCE=0V, Lx=0V 7
Lx SW L Leak Current ILEAKL 0.01 1 μA VIN=VOUT=5.0V, VCE=0V, Lx=5.0V 7
Current Limit ILIM 900 1050 1350 mA VIN=VCE=5.0V, VOUT=VOUT(E)×0.9V 7
Output Voltage Temperature Characteristics ΔVOUT/(VOUT・ΔTopr) -100 100 ppm/℃ IOUT=30mA, -40℃≦Topr≦85℃ 7
CE H Voltage VCEH 0.65 6 V VOUT=0V, voltage changes Lx to H level 7
CE L Voltage VCEL 0.25 V VOUT=0V, voltage changes Lx to L level 7
CE H Current ICEH -0.1 0.1 μA VIN=VCE=5.0V, VOUT=0V 7
CE L Current ICEL -0.1 0.1 μA VIN=5.0V, VCE=0V, VOUT=0V 7
Soft Start Time tSS 0.5 0.9 2.5 ms VCE=0V→VIN, IOUT=1mA 7
Latch Time tLAT 1 20 ms VIN=VCE=5.0V, VOUT=0.8×VOUT(E), Lx shorted via 1Ω 7
Short Protection Threshold Voltage VSHORT 0.675 0.9 1.15 V Sweeping VOUT, VIN=VCE=5.0V, Lx shorted via 1Ω 7
Efficiency EFFI 86 % VCE=VIN=VOUT(E)+1.2V, IOUT=100mA 7
VIN Pin Voltage VIN -0.3 6.5 V 5
Lx Pin Voltage VLX -0.3 V max is VIN + 0.3 5
VOUT Pin Voltage VOUT -0.3 6.5 V 5
CE/MODE Pin Voltage VCE/MODE -0.3 6.5 V 5
Lx Pin Current ILx -1500 1500 mA 5
Power Dissipation SOT-25 Pd 250 mW Ta=25℃ 5
Power Dissipation SOT-25, 40mm x 40mm Standard board Pd 600 mW Ta=25℃, PCB mounted 5
Power Dissipation SOT-25, JESD51-7 board Pd 760 mW Ta=25℃, PCB mounted 5
Operating Ambient Temperature Topr -40 85 °C 5
Storage Temperature Tstg -55 125 °C 5

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin (2) Sn-AG-Cu is used for the package terminals. If eutectic solder is used, mounting reliability is decreased. Please do not use eutectic solder paste. 21

CAD (KiCad official)

  • Symbol: XC9236A33DMR-G
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-25-5 (KiCad packages3D, STEP)
  • 3D model files: xc9236a33dmr-g-etched.step / xc9236a33dmr-g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xc9236a33dmr-g.step / xc9236a33dmr-g.glb are the bare package body.

Provenance

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

  • Datasheet: Torex Semicon datasheet (33 pp, sha256 19428affb229e176, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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