component
TD8210
Public Made by Adomby adom
Techcode Semicon DC-DC Converters, SOT-23-5. 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
markdownTD8210
Techcode Semicon · DC-DC Converters · SOT-23-5
TD8210 from Techcode Semicon, in a SOT-23-5. 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 | LX | output | Switch pin that connects to the inductor and the external Schottky diode; the internal N-channel MOSFET drain is at this node with 0.2Ω typical on-resistance. |
| 2 | GND | power_in | Ground return for the device, to be connected with a star ground or ground plane to minimize ground shifts and noise. |
| 3 | FB | input | Feedback input that regulates the output to 1.23V through an external resistor divider from the output; the feedback network should be routed away from the inductor and shielded because it is a high-impedance node. |
| 4 | EN | input | Enable control input: forcing it above 1.0V enables the device, forcing it below 0.4V shuts it down (supply current below 1µA), and it must not be left floating. |
| 5 | IN | power_in | Main supply pin for the 2.7V to 6V input range, which must be closely decoupled to GND with a 2.2µF or greater ceramic capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Techcode Semicon |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| 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 | 2.7 | 6 | V | TA=-40 |
5 | |
| Input DC Bias Current (switching) | IDD2 | 2 | 5 | mA | VFB=1.1V, switching | 5 | |
| Shutdown Supply Current | ISD | 1 | µA | EN=GND | 5 | ||
| UVLO Threshold Voltage | 2 | 2.2 | 2.4 | V | VIN Rising | 5 | |
| UVLO Hysteresis Voltage | 50 | 100 | 150 | mV | VIN Falling | 5 | |
| Regulated Feedback Voltage | VREF | 1.212 | 1.23 | 1.248 | V | VIN=2.7V~6V, TA = 25 oC | 5 |
| Regulated Feedback Voltage (temperature range) | VREF | 1.205 | 1.255 | V | VIN=2.7V~6V, TA = -40 ~ 85 oC | 5 | |
| FB Input Current | IFB | -50 | 50 | nA | 5 | ||
| Switching Frequency | FSW | 1.25 | 1.5 | 1.75 | MHz | 5 | |
| Power Switch On Resistance | RON | 0.2 | Ω | 5 | |||
| Power Switch Current Limit | ILIM | 2.2 | A | 5 | |||
| LX Leakage Current | -1 | 1 | uA | VEN = 0V, VLX = 0V or 6V, VIN = 6V | 5 | ||
| LX Maximum Duty Cycle | DMAX | 92 | 95 | 98 | % | 5 | |
| Soft-Start Duration | TSS | 2 | 3 | ms | 5 | ||
| EN Voltage Threshold | VTEN | 0.4 | 0.7 | 1 | V | VEN Rising | 5 |
| EN Voltage Hysteresis | 0.1 | V | 5 | ||||
| EN Leakage Current | ILEN | -1 | 1 | uA | VEN=5V, VIN = 5V | 5 | |
| Over-Temperature Protection (rising) | TOTP | 150 | oC | TJ Rising | 5 | ||
| Over-Temperature Protection (falling) | TOTP | 40 | oC | TJ Falling | 5 | ||
| Junction-to-Ambient Thermal Resistance | θJA | 220 | oC/W | Junction-to-Ambient Resistance in Free Air | 4 | ||
| Junction-to-Case Thermal Resistance | θJC | 120 | oC/W | Junction-to-Case Resistance | 4 |
CAD (KiCad official)
- Symbol:
TD8210 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
td8210-etched.step/td8210-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);td8210.step/td8210.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Techcode Semicon datasheet (16 pp, sha256
453f5e4a6e9e2472, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).