component
OB2571TCPA
Public Made by Adomby adom
OB On Bright Elec AC-DC Controllers And Regulators, SOP-8. 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
markdownOB2571TCPA
OB On Bright Elec · AC-DC Controllers And Regulators · SOP-8
OB2571TCPA from OB On Bright Elec, in a SOP-8. 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 | VDD | power_in | Power supply pin; the datasheet gives a recommended VDD supply range of 9 to 25V and an absolute maximum VDD voltage of -0.3 to 30V. |
| 2 | FB | input | Voltage feedback from the auxiliary winding, connected through a resistor divider from the auxiliary winding that reflects the output voltage; FB input voltage is limited to -0.3 to 7V. |
| 3 | GND | power_in | Ground reference pin for the controller. |
| 4 | CS | input | Current sense input; connect a sense resistor from this pin to ground, with CS input voltage limited to -0.3 to 7V. |
| 5 | DRAIN | output | Internal power MOSFET drain output; drain voltage in the off state is limited to -0.3 to Bvdss. |
| 6 | DRAIN | output | Internal power MOSFET drain output; drain voltage in the off state is limited to -0.3 to Bvdss. |
| 7 | DRAIN | output | Internal power MOSFET drain output; drain voltage in the off state is limited to -0.3 to Bvdss. |
| 8 | DRAIN | output | Internal power MOSFET drain output; drain voltage in the off state is limited to -0.3 to Bvdss. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OB On Bright Elec |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VDD Supply Voltage | VDD | 9 | 25 | V | Recommended operating condition | 2 | |
| VDD Voltage | VDD | -0.3 | 30 | V | 2 | ||
| FB Input Voltage | FB | -0.3 | 7 | V | 2 | ||
| Drain Voltage (off state) | -0.3 | V | Off state; maximum printed as Bvdss, no numeric value given for this part | 2 | |||
| CS Input Voltage | CS | -0.3 | 7 | V | 2 | ||
| Min/Max Operating Junction Temperature | TJ | -40 | 150 | ℃ | 2 | ||
| Operating Ambient Temperature | TA | -20 | 85 | ℃ | 2 | ||
| Min/Max Storage Temperature | Tstg | -55 | 150 | ℃ | 2 | ||
| Lead Temperature (Soldering) | 260 | ℃ | Soldering, 10 secs | 2 | |||
| Package thermal resistance, junction to ambient | RθJA | 85 | ℃/W | SOP8 package | 2 |
CAD (KiCad official)
- Symbol:
OB2571TCPA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ob2571tcpa-etched.step/ob2571tcpa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ob2571tcpa.step/ob2571tcpa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OB On Bright Elec datasheet (3 pp, sha256
02779104b7e3f6d7, retrieved 2026-10-18, 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).