SM8103ADC
silergy
Needs validationlow risk
Pin-compatible DC-DC converter with identical key electrical parameters and verified pinout.
Best Alternatives to SY8113IADC
SY8113IADC is a 3A, 18V synchronous step-down regulator in a TSOT23-6 package. Several pin-compatible and functional alternatives are available, offering direct replacements, upgrade paths, or options requiring minor design adjustments.
AI replacement insight
Electrical risklow
Low for pin-compatible parts like SM8103ADC; medium for parts with different frequency.
Package risklow
All reviewed candidates share the same TSOT23-6 package and pinout.
Firmware risklow
Not applicable; these are analog regulators with no firmware.
Can it be replaced directly?
Direct replacement for SY8113IADC should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
For a direct drop-in, use SM8103ADC. For a current upgrade, use SY8105IADC, but check the minimum input voltage.
Main risk
The main risk when using alternatives is a mismatch in switching frequency or minimum input voltage, which can affect system stability and performance.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | SY8113IADC | SM8103ADC | SY8113BADC | SY8105IADC | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TSOT23-6 | TSOT23-6 | TSOT23-6 | TSOT23-6 | TSOT23-6 — Identical package and pin count.; SY8113BADC: Identical package and pin count.; SY8105IADC: Identical package and pin count.; SY8156IADC: Identical package and pin count. |
| Pinout | Standard | Verified identical | - | - | Verified identical — Pinout confirmed identical from datasheets. |
| Voltage | 4.2V - 18V | 4.2V - 18V | 4.5V - 18V | 4.5V - 18V | 4.2V - 18V / 4.5V - 18V — Input voltage range matches.; SY8113BADC: Minimum input voltage is slightly higher.; SY8105IADC: Minimum input voltage is slightly higher.; SY8156IADC: Minimum input voltage is slightly higher. |
| Current | 3A | 3A | 3A | 5A | 3A / 5A / 6A — Output current matches.; SY8113BADC: Output current matches.; SY8105IADC: Higher output current provides an upgrade path.; SY8156IADC: Higher output current. |
| Switching Frequency | 500 kHz | 500 kHz | 500 kHz | 500 kHz | 500 kHz / 400 kHz — Switching frequency matches.; SY8113BADC: Switching frequency matches.; SY8105IADC: Switching frequency matches.; SY8156IADC: Different frequency requires external component changes. |
Application & sourcing insights
Questions & answers
Verified drop-in options for SY8113IADC 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.