SY8113IADC
silergy
Needs validationlow risk
A strong alternative with matching key parameters, package, and pinout from the same manufacturer.
Best Alternatives to SM8103ADC
SM8103ADC is a 3A, 18V synchronous step-down regulator in a TSOT23-6 package. Key alternatives from Silergy like SY8113IADC offer similar performance, while parts like SY8105IADC provide an upgrade path to higher current.
AI replacement insight
Electrical risklow
Several candidates are from the same family with very similar electrical characteristics.
Package risklow
All viable candidates use the same TSOT23-6 package and have a matching pinout.
Sourcing risklow
Multiple alternatives from the same manufacturer provide a robust supply chain.
Can it be replaced directly?
Direct replacement for SM8103ADC should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Start with Datasheet verified or Strong match candidates for SM8103ADC, then review parametric alternatives for package and electrical fit.
Main risk
Minor variations in minimum input voltage or switching frequency across different alternatives.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | SM8103ADC | SY8113IADC | SY8105IADC | SY8113BADC | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TSOT23-6 | TSOT23-6 | TSOT23-6 | TSOT23-6 | TSOT23-6 — Package and pin count match.; SY8105IADC: Package and pinout match.; SY8113BADC: Package and pin count match.; SY8156IADC: Package and pinout match. |
| Voltage | 4.2V to 18V | 4.2V to 18V | 4.5V to 18V | 4.5V to 18V | 4.2V to 18V / 4.5V to 18V — Input voltage range matches.; SY8105IADC: Minimum input voltage is slightly higher.; SY8113BADC: Minimum input voltage is slightly higher.; SY8156IADC: Minimum input voltage is slightly higher. |
| Current | 3A | 3A | 5A | 3A | 3A / 5A / 6A — Output current matches.; SY8105IADC: Higher output current capability.; SY8113BADC: Output current matches.; SY8156IADC: Significantly higher output current. |
| Switching Frequency | 500 kHz | 500 kHz | 500 kHz | 500 kHz | 500 kHz / 400 kHz — Switching frequency matches.; SY8105IADC: Switching frequency matches.; SY8113BADC: Switching frequency matches.; SY8156IADC: Switching frequency is different, requires external component changes. |
| Pinout | Identical | Identical | - | - | Identical — Pinout appears identical based on datasheet review. |
Application & sourcing insights
Questions & answers
Verified drop-in options for SM8103ADC are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.