component
RC1117-3.3
Public Made by Adomby adom
RealChip(正芯半导体) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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RC1117-3.3
RealChip(正芯半导体) · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
RC1117-3.3 from RealChip(正芯半导体), in a SOT-89. 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 | GND | power_in | Ground pin on the fixed 3.3V version (labelled Adj(GND), the adjust pin on the ADJ version); the block diagram shows it as GND (FIXED). |
| 2 | Vout | power_out | Regulated output of 3.3V (3.234 to 3.366V) at 0 to 800mA load, with a 1.25 to 1.6A current limit. |
| 3 | Vin | power_in | Input supply pin with an absolute maximum of 18V, requiring Vin-Vout of at least 4.75V for the 3.3V version's stated regulation conditions. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RealChip(正芯半导体) |
| Package | SOT-89 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference Voltage (output voltage, RC1117-3.3V) | Vref | 3.234 | 3.3 | 3.366 | V | 0≤Iout≤800mA, 4.75V≤Vin-Vout≤12V | 2 |
| Line Regulation | △Vout | 0.035 | 0.2 | % | Iout=10mA,1.5V≤Vin-Vout≤13.775V | 2 | |
| Line Regulation (RC1117-3.3V) | △Vout | 9 | 12 | mV | 2 | ||
| Load Regulation (RC1117-3.3V) | △Vout | 3 | 10 | mV | Vin=4.75V,0≤Iout≤800mA | 2 | |
| Dropout Voltage | Vin-Vout | 1.11 | 1.2 | V | △Vout,△Vref=1%,Iout=100mA | 2 | |
| Dropout Voltage | Vin-Vout | 1.18 | 1.25 | V | △Vout,△Vref=1%,Iout=500mA | 2 | |
| Dropout Voltage | Vin-Vout | 1.26 | 1.3 | V | △Vout,△Vref=1%,Iout=800mA | 2 | |
| Current Limit (RC1117-XXX) | Ilimit | 1.25 | 1.4 | 1.6 | A | VIN-VOUT = 5V,Tj=25℃ | 2 |
| Minimum Load Current (RC1117-3.3V) | 4 | 8 | mA | Vin-Vout=1.25V | 2 | ||
| Maximum Input Voltage | Vin | 18 | V | 1 | |||
| Operating Junction Temperature Range | TJ | 150 | ℃ | 1 | |||
| Storage Temperature | TST | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
RC1117-3.3 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
rc1117-3-3-etched.step/rc1117-3-3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rc1117-3-3.step/rc1117-3-3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RealChip(正芯半导体) datasheet (3 pp, sha256
010557f6c11f3c4c, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# RC1117-3.3
**RealChip(正芯半导体)** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
RC1117-3.3 from RealChip(正芯半导体), in a SOT-89. 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 | GND | power_in | Ground pin on the fixed 3.3V version (labelled Adj(GND), the adjust pin on the ADJ version); the block diagram shows it as GND (FIXED). |
| 2 | Vout | power_out | Regulated output of 3.3V (3.234 to 3.366V) at 0 to 800mA load, with a 1.25 to 1.6A current limit. |
| 3 | Vin | power_in | Input supply pin with an absolute maximum of 18V, requiring Vin-Vout of at least 4.75V for the 3.3V version's stated regulation conditions. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RealChip(正芯半导体) |
| Package | SOT-89 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference Voltage (output voltage, RC1117-3.3V) | Vref | 3.234 | 3.3 | 3.366 | V | 0≤Iout≤800mA, 4.75V≤Vin-Vout≤12V | 2 |
| Line Regulation | △Vout | | 0.035 | 0.2 | % | Iout=10mA,1.5V≤Vin-Vout≤13.775V | 2 |
| Line Regulation (RC1117-3.3V) | △Vout | | 9 | 12 | mV | | 2 |
| Load Regulation (RC1117-3.3V) | △Vout | | 3 | 10 | mV | Vin=4.75V,0≤Iout≤800mA | 2 |
| Dropout Voltage | Vin-Vout | | 1.11 | 1.2 | V | △Vout,△Vref=1%,Iout=100mA | 2 |
| Dropout Voltage | Vin-Vout | | 1.18 | 1.25 | V | △Vout,△Vref=1%,Iout=500mA | 2 |
| Dropout Voltage | Vin-Vout | | 1.26 | 1.3 | V | △Vout,△Vref=1%,Iout=800mA | 2 |
| Current Limit (RC1117-XXX) | Ilimit | 1.25 | 1.4 | 1.6 | A | VIN-VOUT = 5V,Tj=25℃ | 2 |
| Minimum Load Current (RC1117-3.3V) | | | 4 | 8 | mA | Vin-Vout=1.25V | 2 |
| Maximum Input Voltage | Vin | | | 18 | V | | 1 |
| Operating Junction Temperature Range | TJ | | | 150 | ℃ | | 1 |
| Storage Temperature | TST | -65 | | 150 | ℃ | | 1 |
## CAD (KiCad official)
- Symbol: `RC1117-3.3`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `rc1117-3-3-etched.step` / `rc1117-3-3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rc1117-3-3.step` / `rc1117-3-3.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [RealChip(正芯半导体) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603346336960307200) (3 pp, sha256 `010557f6c11f3c4c`, retrieved 2026-10-20, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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).
[Datasheet PDF](docs/rc1117-3-3-datasheet.pdf)