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sgm3766ytn5g

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SGMICRO Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TSOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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SGM3766YTN5G

SGMICRO · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TSOT-23-5

SGM3766YTN5G from SGMICRO, in a TSOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 SW input Drain connection for the internal N-channel MOSFET boost switch. Connect to the inductor/Schottky-diode node. Rated -0.3V to 40V absolute maximum; RDS(ON) ≈ 0.2Ω typ., internal current limit 2.75A typ.
2 GND power_in Device ground return. Connect to the system ground plane; the RSET sense resistor from FB returns to this pin.
3 FB input Feedback / current-sense input. The RSET sense resistor connects from FB to GND at the bottom of the LED string; the loop regulates VFB to 200mV typ. (at 100% PWM). Absolute max -0.3V to 6V; IFB ≈ 0.6μA typ.
4 CTRL input Enable / PWM dimming input. Logic-high (VIH ≥ 1.5V) enables the converter; logic-low (VIL ≤ 0.4V) held longer than tSD (2.5ms typ.) shuts it down. PWM dimming range 10kHz-100kHz, min on-time 40ns; internal 600kΩ pull-down to GND.
5 VIN power_in Input supply pin. Operating range 2.7V to 5.5V (absolute max 6V). UVLO rising ≈ 2.3-2.5V, falling ≈ 2.2V (100mV hysteresis). Bypass with a ≥1μF ceramic capacitor close to the pin.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package TSOT-23-5
Category PMIC
Pins 5

Ordering variants

  • SGM3766YTN5G/TR

CAD (KiCad official)

  • Symbol: SGM3766YTN5G
  • Footprint: Package_TO_SOT_SMD:TSOT-23-5
  • 3D model: TSOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: sgm3766ytn5g-etched.step / sgm3766ytn5g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm3766ytn5g.step / sgm3766ytn5g.glb are the bare package body.

Provenance

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

  • Datasheet: SGMICRO datasheet (None pp, sha256 bc9c7294d3cf4c52, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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