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Best Alternatives to AOZ1280CI

Package: SOT-23-6Alpha & Omega Semiconductor Inc.Voltage Regulators - DC DC Switching RegulatorsOutput Current: 1.2 AInput Voltage Range: 3 V to 26 VSwitching Frequency: 1.5 MHzOutput Voltage Range: 0.8 V to VINEfficiency: Up to 95%

AOZ1280CI is a wide-input 1.2A buck regulator in a SOT23-6 package. While no direct drop-in replacements are confirmed, several pin-compatible functional alternatives exist that require careful review of electrical parameters like input voltage and switching frequency.

AI replacement insight

Electrical riskhigh

Switching frequency and Vin range differences require redesign.

Package risklow

Multiple candidates are pin-compatible in the SOT23-6 package.

Can it be replaced directly?

Direct replacement for AOZ1280CI 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 AOZ1280CI, then review parametric alternatives for package and electrical fit.

Main risk

The primary risk is mismatch in switching frequency and input voltage range, which can cause instability, poor performance, or failure if external components are not adjusted.

Recommended alternatives

2
TP8204HS6 package
TP8204HS6

TECH PUBLIC

Needs validationhigh risk

A pin-compatible alternative with higher current, but requires design review for its different voltage range and switching frequency.

View details

Alternative comparison matrix

Feature / factorAOZ1280CITP8204HS6TMI3342Alt 3Compatibility / risk
PackageSOT-23-6SOT23-6SOT23-6SOT23-6 — Pinout is compatible based on datasheet review.; TMI3342: Pinout is compatible based on datasheet review.
Voltage3V - 26V3.5V - 18V4.5V - 30V3.5V - 18V / 4.5V - 30V — Narrower input range; min is higher, max is lower.; TMI3342: Higher minimum input voltage (4.5V vs 3V).
Current1.2A2.0A2.0A2.0A — Higher output current capability.; TMI3342: Higher output current capability.
Switching Frequency1.5 MHz600 kHz370 kHz600 kHz / 370 kHz — Significantly different, requires external component changes.; TMI3342: Drastically different, requires external component changes.
Output Voltage Ref0.8V0.8V-0.8V — Feedback reference voltage matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for AOZ1280CI 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.