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SY8253ADC

Public Made by Adom

by adom

Silergy Corp DC-DC Converters, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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SY8253ADC

Silergy Corp · DC-DC Converters · SOT-23-6

SY8253ADC from Silergy Corp, in a SOT-23-6. 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 BS passive Boot-strap pin. Supplies the high-side gate driver. Decouple this pin to LX with a 0.1uF ceramic capacitor.
2 GND power_in Ground pin. Common return for power and signal.
3 FB input Output feedback pin. Connect to the center of the output resistor divider to program the output voltage: Vout = 0.6V × (1 + R1/R2). Internal reference 0.6V ±1.5%.
4 EN input Enable control input. Pull high (>1.5V rising threshold) to turn the regulator on; below 0.4V it is off. Do not float.
5 IN power_in Input supply pin, 4.5V to 23V. Decouple to GND with at least a 1uF ceramic capacitor placed close to the pin.
6 LX power_out Switching node. Connect to the external inductor. Internal top/bottom FETs switch this node at 500 kHz with 3A output capability.

Key specifications

Parameter Value
Manufacturer Silergy Corp
Package SOT-23-6
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • SY8253ADC
  • SY8253ADCAIC

CAD (KiCad official)

  • Symbol: SY8253ADC
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: sy8253adc-etched.step / sy8253adc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sy8253adc.step / sy8253adc.glb are the bare package body.

Provenance

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

  • Datasheet: Silergy Corp datasheet (13 pp, sha256 a5a2858a74928804, retrieved 2026-08-17, tier: manufacturer)
  • 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