SSP1117-ADJ
Public Made by Adomby adom
Shanghai Siproin Microelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. Pinout settled in review by an AI reviewer against the manufacturer's datasheet, KiCad symbol/footprint/3D.
SSP1117-ADJ
3D generated from the datasheet; KiCad's model does not fit this maker's body.
Shanghai Siproin Microelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223
SSP1117-ADJ from Shanghai Siproin Microelectronics, in a SOT-223. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Adj/Gnd | input | Adjust pin. Feedback input for the internal 1.25V reference; connect the top of the external resistor divider (R2 to Vout, R1 to GND) so that Vout = 1.25 * (1 + R2/R1) + IAdj*R2. IAdj is typically ~50uA. A bypass capacitor to GND on this pin improves ripple rejection. |
| 2 | Vout | power_out | Regulated output voltage, up to 1.0A. For the ADJ version, output is programmable from 1.25V to 12V. Recommend a 10uF tantalum capacitor to GND for stability. |
| 3 | Vin | power_in | Unregulated input supply, up to 20V absolute maximum. Recommend a 10uF tantalum bypass capacitor to GND. Dropout voltage is 1.3V typical at 1A load. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Siproin Microelectronics |
| Package | SOT-223 |
| Category | 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 |
|---|---|---|---|---|---|---|---|
| Max input voltage | VIN | 20 | V | 3 | |||
| Max operating junction temperature | θTj | 150 | ℃ | 3 | |||
| Ambient temperature | Topr | -40 | 85 | ℃ | 3 | ||
| Storage temperature | Tstg | -40 | 150 | ℃ | 3 | ||
| Lead temperature and time | TSOLD，R | 260 | ℃ | 10 S | 3 | ||
| Output voltage accuracy | -2 | 2 | % | Trimmed output voltage accuracy stated as 'within 2%'; interpreted as ±2% | 1 | ||
| Adjustable output voltage range | 1.25 | 12 | V | Adjustable version, set with two external resistors | 1 | ||
| Input voltage operating range | 20 | V | Range of operation input voltage (stated as 'Max 20V') | 1 | |||
| R1 maximum value | R1 | 625 | ohm | ADJ version stable at load current about 2 mA | 5 | ||
| Reference temperature coefficient | 100 | ppm/°C | Bandgap reference, stated as under 100 ppm/°C | 4 | |||
| Dropout voltage | 1.3 | V | At 1 A load current | 1 | |||
| Standby current | 2 | mA | 1 | ||||
| Line regulation | 0.03 | %/V | 1 | ||||
| Load regulation | 0.2 | %/A | 1 | ||||
| Adjust pin current | IAdj | 50 | uA | Stated as about 50uA | 5 | ||
| Junction-to-ambient thermal resistance, SOT-223 | 20 | ℃/W | SOT-223 package, thermal information rating | 3 | |||
| Total thermal resistance without good PCB heat-dissipation copper | 120 | ℃/W | Stated as 'as high as 120°C/W' with no good heat-dissipation copper on PCB | 5 |
CAD (land: KiCad; 3D: generated from the datasheet)
- Symbol:
SSP1117-ADJ - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223, generated on the KiCad land (body 3.5 x 6.3 mm, terminals on the pads, 1.66 mm tall, datasheet A, nominal). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files:
ssp1117-adj-etched.step/ssp1117-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ssp1117-adj.step/ssp1117-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shanghai Siproin Microelectronics datasheet (9 pp, sha256
4c5a7e0e0fbea4b3, retrieved 2026-11-13, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).