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SM5701_2.8V

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by Ray

HICHON SM5701 2 8V DC-DC Converters, SOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

SM5701_2.8V

HICHON SM5701 2 8V · DC-DC Converters · SOT-23-3L

SM5701_2.8V from HICHON SM5701 2 8V, in a SOT-23-3L. 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 CE input Chip Enable. Drive high to enable the boost converter output; drive low to shut the device down. Referenced to GND.
2 VOUT power_out Regulated boost output. Factory-trimmed to 2.8 V (SM5701_2.8V option code) with +/-3% accuracy. Absolute max 6.5 V; connect a 22 uF ceramic capacitor (COUT) from VOUT to GND.
3 NC unconnected No internal connection. Leave floating or tie to GND.
4 GND power_in Device ground / return for CIN, COUT, CE and the internal synchronous rectifier.
5 LX power_in Switch node. Connect the boost inductor (recommended 4.7 uH) between the input supply (VIN, 0.9-6.5 V) and LX. Internal power NMOS pulls LX to GND during the on-time; internal synchronous PMOS routes inductor current to VOUT during the off-time. Peak switch current limit typ. 800 mA (600-1000 mA). Absolute max -0.3 V to 6.5 V.

Key specifications

Parameter Value
Manufacturer HICHON SM5701 2 8V
Package SOT-23-3L
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • SM5701_2.8VM
  • SM5701_2.8VV
  • SM5701_2.8VS
  • SM5701_2.8VP
  • SM5701_2.8VL

CAD (KiCad official)

  • Symbol: SM5701_2.8V
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HICHON SM5701 2 8V datasheet (11 pp, sha256 6c830b7b2a7068c0, retrieved 2026-08-17, 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: 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