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Contents

README

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SGM3752YTN6G

SGMICRO · LED Drivers · TSOT-23-6

SGM3752YTN6G from SGMICRO, in a TSOT-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 SW output Switch pin connected to the drain of the internal N-channel power FET, rated from -0.3V to 40V on SW.
2 GND power_in Ground; the signal ground should connect to the power ground via a single point close to the GND pin.
3 FB input Feedback input for current that regulates to VFB of 200mV at full PWM duty cycle, with the sense resistor RSET connected between FB and GND.
4 CTRL input PWM dimming input with logic high above 1.5V and logic low below 0.4V, where CTRL held low for more than 2.5ms enters shutdown.
5 NC unconnected No connection.
6 VIN power_in Input supply pin, operating from 2.7V to 5.5V with UVLO at 2.2V (typ) on falling VIN.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package TSOT-23-6
Category LED Drivers
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
Input Voltage Range VIN 2.7 5.5 V Full 4
Under-Voltage Lockout Threshold (VIN rising) UVLO 2.3 2.5 V VIN rising, +25℃ 4
Voltage Feedback Regulation Voltage (PWM duty cycle 100%) VREF 193.5 200 205.3 mV PWM duty cycle 100%, +25℃ 4
Voltage Feedback Regulation Voltage (PWM duty cycle 10%) VREF 18.5 20.3 22.5 mV PWM duty cycle 10%, +25℃ 4
Voltage Feedback Regulation Voltage (PWM duty cycle 1%) VREF 1.65 2.5 3.25 mV PWM duty cycle 1%, +25℃ 4
FB Pin Bias Current IFB 0.001 0.3 μA VFB = 200mV, Full 4
N-Channel MOSFET On-Resistance RDS(ON) 0.5 0.8 Ω +25℃ 4
Switching Frequency fSW 0.9 1.2 1.45 MHz Full 4
Switching MOSFET Current Limit ILIM 1.15 1.5 1.85 A +25℃ 4
Output Voltage Over-Voltage Threshold VOVP_SW 36 38 39.5 V Full 4
CTRL Logic High Voltage VH 1.5 V Full 4
CTRL Logic Low Voltage VL 0.4 V Full 4
Operating Quiescent Current into VIN IQ 0.2 0.35 mA VFB = 400mV, no switching, +25℃ 4
PWM Dimming Frequency Range DFR 10 100 kHz +25℃ 4
Stable Dimming Range DR 0.2 100 % +25℃ 4
Input Voltage Range (recommended) VIN 2.7 5.5 V 2
Output Voltage Range VOUT 38 V VIN to 38V 2
Inductor L 4.7 10 μH 2
Input Capacitor CIN 1 μF MIN 2
Output Capacitor COUT 1 10 μF 2
Operating Temperature Range TA -40 85 ℃ 2
Voltage on VIN, CTRL, FB -0.3 6 V 2
Voltage on SW -0.3 40 V 2
Junction Temperature TJ 150 ℃ 2
Storage Temperature Range TSTG -65 150 ℃ 2
Lead Temperature (Soldering) 260 ℃ 10s 2
Under-Voltage Lockout Threshold (VIN falling) UVLO 2.2 V VIN falling, +25℃ 4
UVLO Hysteresis VHYS 100 mV +25℃ 4
Shutdown Current ISD 1 μA CTRL = GND, +25℃ 4
Voltage Feedback Regulation Voltage (PWM duty cycle 0.2%) VREF 0.92 mV PWM duty cycle 0.2%, +25℃ 4
VREF Filter Time Constant tREF 0.1 ms +25℃ 4
CTRL Pin Internal Pull-Down Resistor RPD 600 kΩ +25℃ 4
CTRL Logic Low Time to Shutdown tSD 2.5 ms CTRL high to low, +25℃ 4
Minimum PWM On-Time 40 ns +25℃ 4
Thermal Shutdown Threshold TSHUTDOWN 160 ℃ 4
Thermal Shutdown Hysteresis THYS 20 ℃ 4
Package Thermal Resistance, junction-to-ambient θJA 190 ℃/W TSOT-23-6 2

CAD (KiCad official)

  • Symbol: SGM3752YTN6G
  • Footprint: Package_TO_SOT_SMD:TSOT-23-6
  • 3D model: TSOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: sgm3752ytn6g-etched.step / sgm3752ytn6g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm3752ytn6g.step / sgm3752ytn6g.glb are the bare package body.

Provenance

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

  • Datasheet: SGMICRO datasheet (15 pp, sha256 49fabe408b5f7a48, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF