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H8118A36PR

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Shanghai Siproin Microelectronics DC-DC Converters, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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H8118A36PR

Shanghai Siproin Microelectronics · DC-DC Converters · SOT-89-3

H8118A36PR from Shanghai Siproin Microelectronics, in a SOT-89-3. 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 GND power_in GND pin; the device ground reference for the step-up converter, with absolute maximum pin voltages specified relative to VSS (VSS-0.3 V to VSS+8 V for VOUT, EN and LX).
2 VOUT power_out Output voltage pin of the step-up converter; absolute maximum pin voltage is VSS-0.3 V to VSS+8 V, and the output is set between 2.1 V and 5.5 V in 0.1 V steps.
3 LX output External inductor connection pin driven by the built-in MOSFET; absolute maximum pin voltage is VSS-0.3 V to VSS+8 V and absolute maximum pin current is 1000 mA, and the MOSFET is turned off by protection circuit if the LX voltage exceeds the limit.

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
Package SOT-89-3
Category Power Management ICs
Pins 3

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage accuracy -2 2 % Feature list: accuracy of ±2% 1
Input Voltage VIN 7.5 V 3
Operation Start Voltage VST1 0.9 V IOUT=1mA, VOUT=2.2V~4.2V 3
Input Current At No Load ISS 15 25 uA VIN=1.8V, VOUT=3.0V 3
Input Current At No Load ISS 25 35 uA VIN=0.9V, VOUT=3.0V 3
Current Consumption 2 ISS2 6 10 uA VOUT=VOUT(s)+0.5V 3
Current Consumption During Shutdown ISSS 1 uA VEN=0V 3
Maximum Oscillation Frequency fosc 300 KHz VOUT=0.95xVOUT(s), measure waveform at LX pin 3
Duty Ratio1 Duty1 70 78 85 % VOUT=0.95xVOUT(s) 3
Efficiency EFF1 90 % 3
Shutdown Pin Input Voltage VSH 0.75 V VOUT=0.95xVOUT(s), judge oscillation at LX pin 3
Shutdown Pin Input Voltage (oscillation stop) VSL1 0.3 V VOUT=0.95xVOUT(s), judge stop at LX pin 3
Shutdown Pin Input Current ISH -0.1 0.1 uA VEN=6V 3
VOUT Pin Voltage VOUT -0.3 8 V Referenced to VSS (printed VSS-0.3~VSS+8) 2
EN Pin Voltage EN -0.3 8 V Referenced to VSS (printed VSS-0.3~VSS+8) 2
LX Pin Voltage VLX -0.3 8 V Referenced to VSS (printed VSS-0.3~VSS+8) 2
LX Pin Current ILX 1000 mA 2
Power Dissipation PD 500 mW SOT-89-3 package 2
Operating Temperature TOPR -40 85 ℃ 2
Storage Temperature TSTG -40 125 ℃ 2
Soldering Temperature TSOLDER 260 ℃ 10 s 2

CAD (KiCad official)

  • Symbol: H8118A36PR
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: h8118a36pr-etched.step / h8118a36pr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); h8118a36pr.step / h8118a36pr.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 2026-11-05, 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