component
SM5308
Public Made by Adomby adom
HICHON Battery Management ICs, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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| viewers | 4h ago |
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| page.json | 4h ago |
| README.md | 4h ago |
| sm5308-etched.glb | 4h ago |
| sm5308-etched.step | 4h ago |
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| sm5308.step | 4h ago |
SM5308
HICHON · Battery Management ICs · ESOP-8
SM5308 from HICHON, in a ESOP-8. 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 | VIN | power_in | DC 5V charging input pin; the datasheet gives an input voltage range of 4.65 V to 5.5 V (absolute maximum -0.3 V to 6 V). |
| 2 | LED1 | output | LED display driver pin for the battery-level indicator, with a stated LED display drive current of 6 mA per LED output (IL1/IL2/IL3). |
| 3 | LED2 | output | LED display driver pin for the battery-level indicator, with a stated LED display drive current of 6 mA per LED output (IL1/IL2/IL3); in MCU status-read mode it outputs a square wave whose frequency encodes the IC state. |
| 4 | LED3 | output | LED display driver pin for the battery-level indicator, with a stated LED display drive current of 6 mA per LED output (IL1/IL2/IL3). |
| 5 | KEY | bidirectional | Key input pin multiplexed with the lighting LED drive, with a stated lighting LED drive current of 17 mA; leave it floating when no key is used. |
| 6 | BAT | power_in | Boost input pin connected to the positive terminal of the lithium battery, with a stated battery operating voltage of 3.0 V to 4.4 V. |
| 7 | SW | output | DC-DC switching pin that must connect to the inductor through R10 and C8 placed close to the pin, per the PCB layout notes. |
| 8 | VOUT | power_out | 5 V boost output pin with a stated DC output voltage of 5.0 V and a boost output current capability of up to 2.4 A. |
| 9 | Power PAD | power_in | Exposed thermal pad connected to ground (GND) that must make good contact with the PCB ground for heat dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HICHON |
| Package | ESOP-8 |
| Category | Power Supply Chip |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN input voltage (charge input) | VIN | 4.65 | 5 | 5.5 | V | 4 | |
| Battery operating voltage | VBAT | 3 | 4.4 | V | 4 | ||
| VIN pin voltage | VIN | -0.3 | 6 | V | 3 | ||
| All other pins voltage | -0.3 | 5.5 | V | All other pins | 3 | ||
| Operating junction temperature range (TJ) | TJ | -40 | 125 | ℃ | 3 | ||
| Storage temperature range (TSTG) | TSTG | -40 | 150 | ℃ | 3 | ||
| Human body model ESD rating (HBM) | 2 | KV | Human body model (HBM) | 3 |
CAD (KiCad official)
- Symbol:
SM5308 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
sm5308-etched.step/sm5308-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sm5308.step/sm5308.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HICHON datasheet (11 pp, sha256
55afbb1178ff403f, retrieved 2026-10-21, 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: 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).