component

RT5785AGJ8F

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Richtek Tech DC-DC Converters, TSOT-23-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icsrt5785agj8ffactory-2.0.0extractor-text

Verified RT5785AGJ8F

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier mfr, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: RT5785AGJ8F · TSOT-23-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 8-page datasheet
  • ✓distributor: lcsc C3003189, digikey 1028-1334-2-ND, mouser 835-RT5785AGJ8F
  • ✓family: TSOT-23-8
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-kxq5s8n8/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ rt5785agj8f.kicad_sym✓ rt5785agj8f.kicad_mod✓ rt5785agj8f.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 2d ago
viewers rt5785agj8f: viewers · Ray 2d ago
package.json Publish 0.1.0 · Ray 2d ago
page.json Set visibility: public · Ray 2d ago
README.md Publish 0.1.0 · Ray 2d ago
rt5785agj8f-hero.glb Publish 0.1.0 · Ray 2d ago
rt5785agj8f-hero.overlay.json Publish 0.1.0 · Ray 2d ago
rt5785agj8f.glb Publish 0.1.0 · Ray 2d ago
rt5785agj8f.kicad_mod Publish 0.1.0 · Ray 2d ago
rt5785agj8f.kicad_sym Publish 0.1.0 · Ray 2d ago
rt5785agj8f.lbr Publish 0.1.0 · Ray 2d ago
rt5785agj8f.step Publish 0.1.0 · Ray 2d ago
verification.json Verified: Published by the parts factory: tier mfr, 8 pins · Ray 2d ago

RT5785AGJ8F

Richtek Tech · DC-DC Converters · TSOT-23-8

RT5785AGJ8F 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 indicator output that is pulled to ground when the output voltage is lower or higher than its specified threshold under UVP, OTP, dropout, EN shutdown, or during slow start.
2 VIN power_in Supply input for the internal control circuit and power switches, driven with 2.5V to 6V and bypassed to PGND with a suitably large capacitor.
3 LX passive Switch node that supplies power to the output and connects to the output LC filter between LX and the load.
4 PGND power_in Power ground that must be soldered to a large PCB and connected to analog ground for maximum power dissipation.
5 VOUT input Output voltage sense input used to monitor and adjust output voltage for superior load transient regulation.
6 AGND power_in Analog ground providing the return path for control circuitry and the internal reference.
7 FB input Feedback voltage input that sets the output voltage via an external resistive divider, with a typical feedback reference of 0.6V.
8 EN input Enable control input where logic high enables the device and connecting to GND disables it.

Key specifications

Parameter Value
Manufacturer Richtek Tech
Package TSOT-23-8
Category Power Management ICs
Pins 8

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 2.5 6 V Drive VIN with a 2.5V to 6V power source (test point description) 3
Feedback reference voltage VFB 0.6 V Feedback reference voltage is 0.6V typically (test point description) 3
Feedback reference voltage accuracy VFB -2 2 % Accurate Voltage Reference 0.6V ±2% (product feature list) 2
Switching frequency fSW 1.5 MHz Steady constant switching frequency (product feature list) 2
Switching frequency tolerance fSW -200 200 kHz Steady 1.5MHz ±200kHz switching frequency (product feature list) 2
Maximum output current IOUT 2 A Max Output Current 2A (key performance summary, evaluation board) 2
Quiescent current IQ 25 µA Headline '25µA IQ' in title; no test conditions printed 1

CAD (KiCad official)

  • Symbol: RT5785AGJ8F
  • Footprint: Package_TO_SOT_SMD:TSOT-23-8
  • 3D model: TSOT-23-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Richtek Tech datasheet (8 pp, sha256 00d695f635aa2a0d, retrieved 2026-11-05, tier: manufacturer)
  • 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