component
RT9167A-18GB
Public Made by Adomby adom
Richtek Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. 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
markdownRT9167A-18GB
Richtek Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
RT9167A-18GB 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 | VIN | power_in | Power input; the datasheet gives an input voltage range of 2.9V to 7V (2.7V to 7V at IL = 50mA) and an absolute maximum input of 8V. |
| 2 | GND | power_in | Ground; connect to a large pad or ground plane, since the GND pin also carries heat away from the device. |
| 3 | EN | input | Chip enable, active high: VIH minimum is 1.6V and VIL maximum is 0.4V (VIN = 3V to 5.5V), and the pin must not be left floating, so tie it to VIN if shutdown is not used. |
| 4 | BP | passive | Reference noise bypass; a 10nF capacitor with the internal 200kΩ resistor forms an 80Hz low-pass filter, and the capacitor must have very low leakage. |
| 5 | VOUT | power_out | Regulated output, selectable from 1.5V to 5V in 100mV steps with 2% accuracy; stable with at least 1µF ceramic output capacitor and ESR greater than 5mΩ. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
RT9167A-18GB - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
rt9167a-18gb-etched.step/rt9167a-18gb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rt9167a-18gb.step/rt9167a-18gb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Richtek Tech datasheet (13 pp, sha256
df5f7c644e9742e0, retrieved 2026-10-09, 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).