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H8118A33M5R

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Shanghai Siproin Microelectronics DC-DC Converters, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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H8118A33M5R

Shanghai Siproin Microelectronics · DC-DC Converters · SOT-23-5

H8118A33M5R from Shanghai Siproin Microelectronics, in a SOT-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 EN input Chip enable / shutdown pin. Drive high (VSH >= 0.75 V) for normal step-up operation; drive low (VSL1 <= 0.3 V) to shut the converter down (ISSS < 1 uA). Absolute max VSS-0.3 V to VSS+8 V.
2 VOUT power_out Regulated boost output voltage pin (3.3V for the '33' option, factory-set between 2.1 V and 5.5 V in 0.1 V steps). Also serves as the internal feedback sense node and supplies the IC. Connect the output capacitor (e.g. 47 uF tantalum) from this pin to GND.
3 NC unconnected No connection. Leave floating or tie to GND per PCB layout preference.
4 GND power_in Ground / VSS reference for the IC. All input and output capacitors return here.
5 LX power_out Switching node - external inductor connection. Connect the boost inductor (typ. 47 uH) from the input supply to this pin. Internal synchronous MOSFET switches this node; peak current is limited to ~1000 mA. Absolute max VSS-0.3 V to VSS+8 V.

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • H8118A33M5R
  • H8118A33M5RM5G
  • H8118A33M5RPR
  • H8118A33M5RPG

CAD (KiCad official)

  • Symbol: H8118A33M5R
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: h8118a33m5r-etched.step / h8118a33m5r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); h8118a33m5r.step / h8118a33m5r.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Siproin Microelectronics datasheet (6 pp, sha256 b86cbaa950a423ac, 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