component
TP8350-SOT89-R
Public Made by Adomby adom
TOPPOWER Nanjing Extension Microelectronics DC-DC Converters, SOT-89-3. 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
markdownTP8350-SOT89-R
TOPPOWER Nanjing Extension Microelectronics · DC-DC Converters · SOT-89-3
TP8350-SOT89-R from TOPPOWER Nanjing Extension Microelectronics, in a SOT-89-3. 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 | Vss | power_in | Ground pin; the datasheet advises connecting Vss to ground sufficiently, because otherwise the internal zero-voltage reference shifts with switch current and the converter can become unstable. |
| 2 | OUT | power_out | Output voltage pin; for TP8350 the output is 5.000 V typical (4.875 V to 5.125 V), and the absolute maximum output pin current is 800 mA. |
| 3 | Lx | output | Switch pin that drives the inductor (EXT for external MOS variants); for TP8350 the Lx switching current is 570 mA minimum at VLX = 0.4 V and the Lx leakage is 1 µA maximum at VLX = 6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOPPOWER Nanjing Extension Microelectronics |
| Package | SOT-89-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage | Vout | 4.875 | 5 | 5.125 | V | 5 | |
| Input Current1 | IIN1 | 8 | 15 | 25 | µA | VIN=2.2V | 5 |
| Input Current2 | IIN2 | 2 | 4 | µA | 5 | ||
| Start-up Voltage | Vstart | 0.5 | 0.8 | 0.9 | V | IL=1mA; VIN: 0→0.98V | 5 |
| Hold-on Voltage | Vhold | 0.3 | 0.5 | 0.6 | V | IL=1mA; VIN: 0.98→0V | 5 |
| Lx Switching Current | ILX | 570 | mA | VLX=0.4V | 5 | ||
| Lx Leakage Current | ILxleak | 1 | µA | VLX=6V | 5 | ||
| Osc Frequency | FOSC | 150 | 200 | 250 | kHz | 5 | |
| Duty | Dty | 80 | % | 5 | |||
| Efficiency | η | 85 | % | 5 | |||
| Input Pin Voltage | VIN | 10 | V | 3 | |||
| Output Pin Current | Iout | 800 | mA | 3 | |||
| Power Dissipation (SOT-89) | Pd | 500 | mW | SOT-89 | 3 | ||
| Operation Temperature | Topt | -40 | 125 | ºC | 3 | ||
| Lead Temperature (Soldering) | Tsolder | 260 | ºC | Soldering 10mS | 3 |
CAD (KiCad official)
- Symbol:
TP8350-SOT89-R - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
tp8350-sot89-r-etched.step/tp8350-sot89-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tp8350-sot89-r.step/tp8350-sot89-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOPPOWER Nanjing Extension Microelectronics datasheet (10 pp, sha256
fe26715dd09289dd, 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).