component
RT5789BGJ8F
Public Made by Adomby adom
Richtek Tech DC-DC Converters, TSOT-23-8. 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
markdownRT5789BGJ8F
Richtek Tech · DC-DC Converters · TSOT-23-8
RT5789BGJ8F from Richtek Tech, in a TSOT-23-8. 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 | PGOOD | output | Open-drain power-good indication output that is activated only after soft-start is finished. |
| 2 | VIN | power_in | Power input with an input voltage range of 2.5V to 6V; connect a bypass capacitor typically greater than 10µF between this pin and PGND, placed as close to the IC as possible. |
| 3 | LX | power_out | Switch node between the internal switch and the synchronous rectifier; connect the output LC filter from this pin to the output load. |
| 4 | PGND | power_in | Power ground, connected to analog ground, that must be soldered to a large PCB copper area for maximum power dissipation. |
| 5 | VOUT | input | Output voltage sense input used to monitor and adjust the output voltage for improved load transient regulation. |
| 6 | AGND | power_in | Analog ground providing the return path for control circuitry and the internal reference, to be connected to a clean inner GND point with a separate trace. |
| 7 | FB | input | Feedback voltage input connected to the midpoint of the external resistive divider; the device regulates FB to a typical 0.6V reference. |
| 8 | EN | input | Enable control input where a logic-high enables the converter and a logic-low forces shutdown mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | TSOT-23-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
RT5789BGJ8F - Footprint:
Package_TO_SOT_SMD:TSOT-23-8 - 3D model: TSOT-23-8 (KiCad packages3D, STEP)
- 3D model files:
rt5789bgj8f-etched.step/rt5789bgj8f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rt5789bgj8f.step/rt5789bgj8f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Richtek Tech datasheet (24 pp, sha256
3724d935031b0e0f, 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).