# RS3236-ADJ8YF5

**Jiangsu RUNIC Tech** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

RS3236-ADJ8YF5 from Jiangsu RUNIC Tech, 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 | IN | power_in | Regulator input; supply voltage can range from 1.7V to 7.5V, bypass with a 1μF capacitor to GND. |
| 2 | GND | power_in | Ground. |
| 3 | EN | input | Enable input; a logic low reduces the supply current to 10nA, connect to IN for normal operation. |
| 4 | FB | input | Feedback pin (adjustable voltage version only) used to set the output voltage of the device, with VFB = 0.81V for RS3236-ADJ8. |
| 5 | OUT | power_out | Regulator output. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC Tech |
| 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 | 1.7 |  | 7.5 | V | +25°C | 7 |
| Feedback voltage (ADJ8 variant) | VFB | 0.79 | 0.81 | 0.83 | V | IOUT = 0.1 mA, RS3236-ADJ8, +25°C | 7 |
| Current limit | ILIM | 500 |  | 800 | mA | +25°C | 7 |
| EN input threshold high (VIH), VIN = 1.7V | VIH | 1.4 |  |  | V | VIN = 1.7V, Full (-40°C to +85°C) | 7 |
| EN input threshold low (VIL), VIN = 1.7V | VIL |  |  | 0.4 | V | VIN = 1.7V, Full (-40°C to +85°C) | 7 |
| EN input threshold high (VIH), VIN = 7.5V | VIH | 2.3 |  |  | V | VIN = 7.5V, Full (-40°C to +85°C) | 7 |
| EN input threshold low (VIL), VIN = 7.5V | VIL |  |  | 0.8 | V | VIN = 7.5V, Full (-40°C to +85°C) | 7 |
| Ground pin current | IQ |  | 15 | 20 | µA | No load, +25°C | 7 |
| Line regulation | ΔVLNR |  | 0.1 | 0.2 | %/V | VIN = (VOUT + 0.5V) to 7.5V, IOUT = 1mA, +25°C | 7 |
| Load regulation | ΔVOUT |  | 25 | 50 | mV | IOUT = 0.1mA to 500mA, COUT = 1µF, +25°C | 7 |
| EN input bias current high | IBH |  | 0.01 | 1 | µA | EN = 7.5V, +25°C | 7 |
| Shutdown supply current | IQ(SHDN) |  | 0.01 | 1 | µA | EN = 0V, Full (-40°C to +85°C) | 7 |
| Input voltage | VIN | -0.3 |  | 8 | V |  | 6 |
| Enable input voltage | VEN | -0.3 |  |  | V | Maximum printed as VIN | 6 |
| Junction temperature | TJ |  |  | 150 | °C |  | 6 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 6 |
| Electrostatic discharge, human-body model (HBM) | V(ESD) | -6000 |  | 6000 | V | HBM | 6 |
| Electrostatic discharge, machine model (MM) | V(ESD) | -400 |  | 400 | V | MM | 6 |
| Input supply voltage | VIN | 1.7 |  | 7.5 | V |  | 6 |
| Enable input voltage | VEN | 0 |  |  | V | Maximum printed as VIN | 6 |
| Output current | IOUT | 0 |  | 500 | mA |  | 6 |
| Junction temperature | TJ | -40 |  | 85 | °C |  | 6 |
| Output voltage noise | en |  | 80 |  | µ VRMS | f = 10Hz to 100kHz, CBP = 0.01µF, COUT = 10µF, IOUT=30mA, +25°C | 7 |
| Output voltage temperature coefficient | ΔVOUT ΔTA × VOUT |  | 35 |  | ppm/℃ | ILOAD = 0.1mA, Full (-40°C to +85°C) | 7 |
| Power supply rejection ratio | PSRR |  | 72 |  | dB | CBP = 0μF, ILOAD = 30mA, COUT = 1μF, VIN = VOUT+1V, ΔVRIPPLE=0.2VP-P, f = 217Hz, +25°C | 7 |
| Power supply rejection ratio | PSRR |  | 70 |  | dB | CBP = 0μF, ILOAD = 30mA, COUT = 1μF, VIN = VOUT+1V, ΔVRIPPLE=0.2VP-P, f = 1kHz, +25°C | 7 |
| Power supply rejection ratio | PSRR |  | 74 |  | dB | CBP = 10nF, ILOAD = 30mA, COUT = 1μF, VIN = VOUT+1V, ΔVRIPPLE=0.2VP-P, f = 217Hz, +25°C | 7 |
| EN input bias current low | IBL |  | 0.01 |  | µA | EN = 0V, Full (-40°C to +85°C) | 7 |
| Maximum output current |  |  | 500 |  | mA | +25°C | 7 |
| Start-up time | tSTR |  | 180 |  | µs | COUT = 1μF, No load, +25°C | 7 |
| Thermal shutdown temperature | TSHDN |  | 140 |  | °C |  | 7 |
| Junction-to-ambient thermal resistance (SOT23-5) | RθJA |  | 185.6 |  | °C/W | SOT23-5 column | 6 |
| Junction-to-case (top) thermal resistance (SOT23-5) | RθJC(top) |  | 104.3 |  | °C/W | SOT23-5 column | 6 |
| Junction-to-board thermal resistance (SOT23-5) | RθJB |  | 54.5 |  | °C/W | SOT23-5 column | 6 |
| Junction-to-top characterization parameter (SOT23-5) | ψJT |  | 31 |  | °C/W | SOT23-5 column | 6 |
| Junction-to-board characterization parameter (SOT23-5) | ψJB |  | 54.5 |  | °C/W | SOT23-5 column | 6 |

## CAD (KiCad official)

- Symbol: `RS3236-ADJ8YF5`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `rs3236-adj8yf5-etched.step` / `rs3236-adj8yf5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rs3236-adj8yf5.step` / `rs3236-adj8yf5.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Jiangsu RUNIC Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884096357707776) (15 pp, sha256 `e3bd3e3419455f27`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/rs3236-adj8yf5-datasheet.pdf)