component
XC9265C181MR-G
Public Made by Adomby adom
Torex Semicon DC-DC Converters, SOT-25-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownXC9265C181MR-G
Torex Semicon · DC-DC Converters · SOT-25-5
XC9265C181MR-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; operating input voltage range is 2.0V to 6.0V (absolute maximum -0.3 to 7.0V). |
| 2 | GND | power_in | Ground pin; all voltages are referenced to GND. |
| 3 | CE | input | Chip enable: H (1.2V to 6.0V) is operation, L (GND to 0.3V) is standby, and the pin must not be left open. |
| 4 | VOUT | input | Output voltage sense pin (also CL discharge switch to GND on the C type), absolute maximum -0.3V to VIN+0.3V or 7.0V whichever is lower. |
| 5 | LX | output | Switching node connecting the inductor, absolute maximum -0.3V to VIN+0.3V or 7.0V with LX pin current up to 1000mA. |
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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 2 | 6 | V | 7 | ||
| Output Voltage (VOUT(T)=1.80V) | VOUT(E) | 1.764 | 1.836 | V | Resistor connected with LX pin. Voltage which LX pin changes L to H while VOUT is decreasing. | 9 | |
| UVLO Release Voltage | VUVLO(E) | 1.65 | 1.8 | 1.95 | V | VCE=VIN, VOUT=0V. Resistor connected with LX pin. LX changes L to H while VIN is increasing. | 7 |
| UVLO Hysteresis Voltage | VHYS(E) | 0.11 | 0.15 | 0.24 | V | VCE=VIN, VOUT=0V. VUVLO(E) - voltage at which LX changes H to L while VIN is decreasing. | 7 |
| Supply Current | Iq | 0.5 | 0.9 | μA | VIN=2.0V if VOUT(T)≦1.5V; VIN=VCE=VOUT(T)+0.5V, VOUT=VOUT(T)+0.5V, LX=Open | 9 | |
| Standby Current | ISTB | 0.1 | 1 | μA | VIN=5.0V, VCE=VOUT=0V, LX=Open | 7 | |
| LX SW H Leak Current | ILEAKH | 0.1 | 1 | μA | VIN=5.0V, VCE=VOUT=0V, VLX=0V | 7 | |
| LX SW L Leak Current | ILEAKL | 0.1 | 1 | μA | VIN=5.0V, VCE=VOUT=0V, VLX=5.0V | 7 | |
| PFM Switching Current | IPFM | 260 | 330 | 400 | mA | VIN=VCE=VOUT(T)+2.0V, IOUT=10mA | 7 |
| LX SW Pch ON Resistance | RLXP | 0.4 | 0.65 | Ω | VIN=VCE=5.0V, VOUT=0V, ILX=100mA | 7 | |
| CE High Voltage | VCEH | 1.2 | 6 | V | VOUT=0V. LX changes L to H while VCE=0.2→1.5V | 7 | |
| CE Low Voltage | VCEL | 0.3 | V | VOUT=0V. LX changes H to L while VCE=1.5→0.2V. Min printed as GND | 7 | ||
| CE High Current | ICEH | -0.1 | 0.1 | μA | VIN=VCE=5.0V, VOUT=0V, LX=Open | 7 | |
| CE Low Current | ICEL | -0.1 | 0.1 | μA | VIN=5.0V, VCE=VOUT=0V, LX=Open | 7 | |
| Short Protection Threshold Voltage | VSHORT | 0.4 | 0.5 | 0.6 | V | Resistor connected with LX pin. LX changes H to L while VOUT=VOUT(T)+0.1V→0V | 7 |
| CL Discharge Resistance | RDCHG | 55 | 80 | 105 | Ω | VIN=VOUT=5.0V, VCE=0V, LX=Open | 7 |
| Efficiency (VOUT(T)=1.8V) | EFFI | 87 | % | VIN=VCE=3.6V, VOUT(T)=1.8V, IOUT=30mA | 7 | ||
| LX SW Nch ON Resistance | RLXN | 0.4 | Ω | VIN=VCE=5.0V; designed value | 7 | ||
| Output Voltage Temperature Characteristics | ΔVOUT/(VOUT・ΔTopr) | 100 | ppm/℃ | -40℃≦Topr≦85℃, printed ±100 | 7 | ||
| VIN Pin Voltage | VIN | -0.3 | 7 | V | Ta=25˚C | 4 | |
| LX Pin Voltage | VLX | -0.3 | 7 | V | Max is the lower of VIN+0.3V or 7.0V | 4 | |
| VOUT Pin Voltage | VOUT | -0.3 | 7 | V | Max is the lower of VIN+0.3V or 7.0V | 4 | |
| CE Pin Voltage | VCE | -0.3 | 7 | V | Ta=25˚C | 4 | |
| LX Pin Current | ILX | 1000 | mA | Ta=25˚C | 4 | ||
| Power Dissipation SOT-25 (IC only) | Pd | 250 | mW | IC only | 4 | ||
| Power Dissipation SOT-25 (40mm x 40mm Standard board) | Pd | 600 | mW | 40mm x 40mm Standard board, reference only | 4 | ||
| Power Dissipation SOT-25 (JESD51-7 Board) | Pd | 760 | mW | JESD51-7 Board, reference only | 4 | ||
| Operating Ambient Temperature | Topr | -40 | 85 | ˚C | 4 | ||
| Storage Temperature | Tstg | -55 | 125 | ˚C | 4 |
CAD (KiCad official)
- Symbol:
XC9265C181MR-G - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-25-5 (KiCad packages3D, STEP)
- 3D model files:
xc9265c181mr-g-etched.step/xc9265c181mr-g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xc9265c181mr-g.step/xc9265c181mr-g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Torex Semicon datasheet (33 pp, sha256
a2bdd5dd3b4e3fd1, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).