# RT9701GB

**Richtek Tech** · Power Distribution Switches · SOT-23-5

RT9701GB from Richtek 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 | VOUT | power_out | Switch output (source of the output MOSFET) connected to the load; must be shorted on the board to the other VOUT pin (pin 5). |
| 2 | GND | power_in | Ground. |
| 3 | VIN | power_in | Power input voltage (2.2V to 6V) feeding the circuitry and the drain of the output MOSFET, connected to the power source. |
| 4 | EN | input | Chip enable, active high, with input high threshold of 2.0V min and low threshold of 0.8V max. |
| 5 | VOUT | power_out | Switch output (source of the output MOSFET) connected to the load; must be shorted on the board to the other VOUT pin (pin 1). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Richtek 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 Range | VIN | 2.2 |  | 6 | V |  | 3 |
| Output NMOSFET RDS(ON) (RT9701xB) | RDS(ON) |  | 87 | 100 | mΩ | IL = 1A | 3 |
| Quiescent Current |  |  | 19 | 40 | μA | VIN = 3V | 3 |
| Quiescent Current |  |  | 23 | 45 | μA | VIN = 5V | 3 |
| Current Limit Threshold | ILIMIT | 1.1 | 1.5 | 2 | A | RL = 2Ω | 3 |
| EN Input High Threshold (RT9701xB) |  | 2 |  |  | V | RT9701xB | 3 |
| EN Input Low Threshold (RT9701xB) |  |  |  | 0.8 | V | RT9701xB | 3 |
| Shutdown Supply Current (RT9701xB) | IOFF |  | 0.1 | 1 | μA | EN = "0" | 3 |
| Output Leakage Current (RT9701xB) | ILEAKAGE |  | 0.5 | 10 | μA | EN = "0", VOUT = 0V | 3 |
| VIN Under Voltage Lockout | UVLO | 1.3 | 1.8 |  | V |  | 3 |
| Supply Voltage |  |  |  | 7 | V |  | 3 |
| Chip Enable |  | -0.3 |  | 7 | V |  | 3 |
| Power Dissipation SOT-23-5 | PD |  |  | 0.25 | W | TA = 25°C | 3 |
| Package Thermal Resistance SOT-23-5 | θJA |  | 250 |  | °C/W | SOT-23-5 | 3 |
| Lead Temperature (Soldering) |  |  |  | 260 | °C | 10 sec soldering | 3 |
| Operating Junction Temperature Range |  | -20 |  | 100 | °C |  | 3 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 3 |
| VOUT ESD Level HBM |  |  |  | 8 | kV | Human Body Model | 3 |
| VOUT ESD Level MM |  |  |  | 800 | V | Machine Model | 3 |

## CAD (KiCad official)

- Symbol: `RT9701GB`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `rt9701gb-etched.step` / `rt9701gb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rt9701gb.step` / `rt9701gb.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Richtek Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586199975613378560) (10 pp, sha256 `370f940197c06940`, retrieved 2026-10-18, 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/rt9701gb-datasheet.pdf)