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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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownH8118A36PR
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);h8118a36pr.step/h8118a36pr.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).