component

SL2733

Public Made by Adom

by adom

Slkor(SLKORMICRO Elec.) DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SL2733

Slkor(SLKORMICRO Elec.) · DC-DC Converters · SOT-23-5

SL2733 from Slkor(SLKORMICRO Elec.), in a SOT-23-5. 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 passive Drain of the internal power switch, connected to the inductor and Schottky diode anode; enters low-power safe mode when SW reaches 37V overvoltage detection, with 40V absolute maximum.
2 GND power_in Ground reference pin, to be connected directly to the PCB ground plane.
3 FB input Feedback pin clamped at 0.3V, connected to the cathode of the lowest LED with resistor R1 to GND setting ILED = 0.3V/R1.
4 SHDN input Active-high shutdown logic input; device is off below 0.4V and enabled above 1.5V, with -0.3 to 40V absolute maximum.
5 VIN power_in Supply input for internal logic, 3.3V to 32V input range with a 4.7uF ceramic bypass capacitor to GND recommended; device stops below 3.3V.

Key specifications

Parameter Value
Manufacturer Slkor(SLKORMICRO Elec.)
Package SOT-23-5
Category Power Management ICs
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
FB pin voltage VFB 285 300 315 mV IOUT = 180mA, VIN=3.6V, Ta=25C 6
Shutdown current ISD 6 10 uA VSHDN=0V 6
Operating current IQ 0.8 1.5 mA VFB = 0.2V 6
Operating current IQ 0.1 0.6 mA VFB = 0.4V 6
FB input current IFB 1 uA 6
Enable turn-on voltage VENH 1 1.5 V 6
Enable turn-off voltage VENL 0.4 0.5 V 6
Switching frequency FSW 0.8 1 1.3 MHz 6
Switch on-resistance RSW 1 2 Ω ISW = 100 mA 6
Switch leakage current LLEAK 1 uA EN=0V, VSW=5V 6
Switch current limit ILIM 600 A VIN=3.6V 6
Switch current limit ILIM 750 A VIN=5V 6
Thermal shutdown TSD 150 °C 6
Thermal hysteresis THYST 20 °C 6
UVLO threshold VUVLO 3.3 V 6
Overvoltage detection threshold VOV-DET 37 V 6
Output clamp voltage VOCL 37 V LED open, FB<0.2 6
Maximum duty cycle DC 92 % 6
Minimum duty cycle DC 16 % 6
VIN voltage VIN -0.3 42 V 5
FB voltage VFB -0.3 7 V 5
SHDN voltage VSHDN -0.3 40 V 5
SW voltage VSW -0.3 40 V 5
Storage temperature Tstg -40 150 °C 5
Junction temperature Tj -40 150 °C 5
Soldering temperature Tsoldering 300 °C 5
ESD HBM VESD-HBM -2000 2000 V Human body model, JESD22-A114 5
ESD CDM VESD-CDM -1000 1000 V Charged device model, JESD22-C101E 5
VIN pin voltage VIN 3.6 30 V 5
SW pin voltage VSW 0 32 V 5
Ambient temperature range -40 150 °C 5
Thermal resistance junction-ambient Rthj-a 220 K/W SOT23-5, soldered on PCB 5

CAD (KiCad official)

  • Symbol: SL2733
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: sl2733-etched.step / sl2733-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sl2733.step / sl2733.glb are the bare package body.

Provenance

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

  • Datasheet: Slkor(SLKORMICRO Elec.) datasheet (15 pp, sha256 7f009a53569e1d44, retrieved 2026-10-22, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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