component
RT9266GE
Public Made by Adomby adom
Richtek Tech DC-DC Converters, SOT-23-6. 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
markdownRT9266GE
Richtek Tech · DC-DC Converters · SOT-23-6
RT9266GE from Richtek Tech, in a SOT-23-6. 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 | EN | input | Chip enable, active high, with EN pin trip level of 0.4V min, 0.8V typ and 1.2V max at VDD = 3.3V; EN = 0V gives shutdown. |
| 2 | EXT | output | Output pin for driving an external NMOS power switch, with driver current rated up to 200mA absolute maximum and about 5 ohm typical on-resistance to VDD or GND. |
| 3 | GND | power_in | Ground pin; the 1uF VDD bypass capacitor should connect with a short, wide path between this pin and VDD (pin 5). |
| 4 | LX | passive | Switching node connected to the inductor and the internal N-MOS switch, rated -0.3V to 7V with 2.5A absolute maximum switch current and 2A typical current limit. |
| 5 | VDD | power_in | Positive power input of the RT9266 with operating VDD range of 2V to 6V (absolute maximum 7V). |
| 6 | FB | input | Feedback input to the error amplifier with 1.25V internal reference, with VOUT = (1 + R1/R2) x 1.25V set by the external divider. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | SOT-23-6 |
| Category | Power Management ICs |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Start-Up Voltage | VST | 0.98 | 1.05 | V | IL = 1mA | 5 | |
| Operating VDD Range | VDD | 2 | 6 | V | VDD pin voltage | 5 | |
| Shutdown Current I(VIN) | IOFF | 0.01 | 1 | μA | EN Pin = 0V, VIN = 4.5V | 5 | |
| Switch-off Current I(VDD) | ISWITCH OFF | 17 | 25 | μA | VIN = 6V | 5 | |
| Continuous Switching Current | ISWITCH | 0.4 | 0.55 | 0.7 | mA | VIN = EN = 3.3V, VFB = GND | 5 |
| No Load Current I(VIN) | INO LOAD | 75 | μA | VIN = 1.5V, VOUT = 3.3V | 5 | ||
| Feedback Reference Voltage | VREF | 1.225 | 1.25 | 1.275 | V | Close Loop, VDD = 3.3V | 5 |
| Switching Frequency | FS | 425 | 500 | 575 | kHz | VDD = 3.3V | 5 |
| Maximum Duty | DMAX | 85 | 95 | % | VDD = 3.3V | 5 | |
| LX ON Resistance | 0.3 | 1.1 | Ω | VDD = 3.3V | 5 | ||
| Current Limit Setting | ILIMIT | 1.6 | 2 | 2.6 | A | VDD = 3.3V | 5 |
| EXT ON Resistance to VDD | 5 | 8.5 | Ω | VDD = 3.3V | 5 | ||
| EXT ON Resistance to GND | 5 | 8.5 | Ω | VDD = 3.3V | 5 | ||
| Line Regulation | ΔVLINE | 1.5 | 10 | mV/V | VIN = 3.5 ~ 6V, IL = 1mA | 5 | |
| Load Regulation | ΔVLOAD | 0.25 | mV/mA | VIN = 2.5V, IL = 1 ~ 100mA | 5 | ||
| EN Pin Trip Level | 0.4 | 0.8 | 1.2 | V | VDD = 3.3V | 5 | |
| Temperature Stability for Vout | TS | 50 | ppm/°C | 5 | |||
| Thermal Shutdown Hysterises | ΔTSD | 10 | °C | 5 | |||
| Supply Voltage | -0.3 | 7 | V | 5 | |||
| LX Pin Switch Voltage | -0.3 | 7 | V | 5 | |||
| Other I/O Pin Voltages | -0.3 | V | max is (VDD + 0.3V) | 5 | |||
| LX Pin Switch Current | 2.5 | A | 5 | ||||
| EXT Pin Driver Current | 200 | mA | 5 | ||||
| Package Thermal Resistance SOT-23-6 | θJC | 145 | °C/W | SOT-23-6 | 5 | ||
| Operating Junction Temperature | 125 | °C | 5 | ||||
| Storage Temperature Range | -65 | 150 | °C | 5 |
CAD (KiCad official)
- Symbol:
RT9266GE - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
rt9266ge-etched.step/rt9266ge-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rt9266ge.step/rt9266ge.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Richtek Tech datasheet (14 pp, sha256
54234c69b262a23e, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).