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Best Alternatives to SY8088IAAC

Package: SOT23-5silergyPMIC - Voltage Regulators - DC DC Switching RegulatorsOutput Current: 1 ASwitching Frequency: 1.5 MHzInput Voltage Range: 2.5 V to 5.5 VOutput Voltage: AdjustableQuiescent Current: 50 µA

SY8088IAAC is a 1A synchronous buck regulator in SOT23-5. Similar SOT23-5 buck parts exist, but pinout and thermal range must be checked.

AI replacement insight

Electrical riskmedium

Vin, frequency, and control differ.

Package risklow

Kept parts list SOT23-5.

Firmware risklow

No digital interface shown.

Sourcing riskmedium

Lifecycle is not explicit.

Can it be replaced directly?

No verified pin-compatible replacement is proven from the provided fields.

Best replacement path

Start with ETA3406S2F for closest frequency/current, then verify pins, Vin, 125C need, and external BOM.

Main risk

Pinout is not verified and several candidates do not cover 125C.

Recommended alternatives

3
ETA3406S2F package
ETA3406S2F

ETA

Needs validationmedium risk

ETA3406S2F is a close buck candidate for SY8088IAAC but needs FAE review.

View details

Alternative comparison matrix

Feature / factorSY8088IAACETA3406S2FETA3409S2FETA3448S2FCompatibility / risk
PackageSOT23-5SOT23-5SOT23-5SOT23-5SOT23-5 — same body; ETA3409S2F: same body; ETA3448S2F: same body
Pinout5 pins5 pins5 pins5 pins5 pins — functions not shown; ETA3409S2F: functions not shown; ETA3448S2F: functions not shown
Current1A1.2A3A3A1.2A / 3A — margin small; ETA3409S2F: higher rating; ETA3448S2F: higher rating
Voltage2.5-5.5V2.6-5.5V2.4-7.3V2.5-5.5V2.6-5.5V / 2.4-7.3V / 2.5-5.5V — higher Vin min; ETA3409S2F: wider Vin; ETA3448S2F: Vin match
Temperature-40 to 125C-40 to 85C-40 to 85C--40 to 85C — no 125C cover; ETA3409S2F: no 125C cover
Application1.5MHz buck--2MHz COT buck2MHz COT buck — loop may differ

Application & sourcing insights

Questions & answers

ETA3406S2F is the closest listed candidate, but it still needs pinout, Vin-min, and temperature review.