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H8118A40PR

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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.

componentpower management (pmic)h8118a40prfactory-2.0.0extractor-text
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Contents

README

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H8118A40PR

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

H8118A40PR 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 for the H8118A SOT89 variant; the datasheet gives no electrical limits for this pin.
2 VOUT power_out Output voltage pin of the step-up converter; absolute maximum VOUT pin voltage is VSS-0.3 V to VSS+8 V.
3 LX passive External inductor connection pin for the step-up switch node; absolute maximum LX pin voltage is VSS-0.3 V to VSS+8 V and LX pin current is 1000 mA.

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
Package SOT-89-3
Category Power Management (PMIC)
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 VOUT 0.98 1.02 ×VOUT(S) (printed unit V) Printed as VOUT(S)×0.98 to VOUT(S)×1.02; VOUT(S) is the set output voltage 3
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 3
Oscillation Stop At LX Pin Input Voltage VSL1 0.3 V VOUT=0.95xVOUT(s), judge oscillation 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 Printed as VSS-0.3~VSS+8 (relative to VSS) 2
EN Pin Voltage EN -0.3 8 V Printed as VSS-0.3~VSS+8 (relative to VSS) 2
LX Pin Voltage VLX -0.3 8 V Printed as VSS-0.3~VSS+8 (relative to VSS) 2
LX Pin Current ILX 1000 mA 2
Power Dissipation (SOT-89-3) 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: H8118A40PR
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: h8118a40pr-etched.step / h8118a40pr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); h8118a40pr.step / h8118a40pr.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 2026-10-19, 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