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Best Alternatives to HT7550-1

Package: TO-243AAUMWVoltage Regulators - LinearSeries: 75xxPackage: Tape & Reel (TR) Cut Tape (CT) Digi-Reel®Voltage - Input (Max): 30VVoltage - Output (Min/Fixed): 5VVoltage - Output (Max): -

The UMW HT7550-1 is a 5V, 100mA low-dropout (LDO) linear regulator in a SOT-89-3 package, notable for its 30V maximum input and ultra-low 3µA quiescent current. Finding a suitable substitute requires matching these key performance metrics, especially for power-sensitive appli...

AI replacement insight

Package riskhigh

While some candidates share the SOT-89-3 package, pinouts can vary between LDO families and must be verified to prevent damage.

Electrical riskmedium

Key parameters like max input voltage and operating temperature may be lower in alternatives, requiring system-level validation.

Sourcing risklow

The target and its closest alternatives are from common LDO families, suggesting reasonable availability from multiple vendors.

Can it be replaced directly?

Direct replacement for HT7550-1 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The HT7150-1 from the same manufacturer offers the most similar electrical profile and package, making it the strongest candidate, but its narrower temperature range must be acceptable for the application.

Main risk

The primary risks are using a substitute with an incompatible pinout, a lower maximum input voltage rating, or significantly higher quiescent current, which would negate the target's low-power advantage.

Recommended alternatives

2
HT7150-1 package
HT7150-1

UMW

Needs validationlow risk

Strong electrical match in the same package, but has a narrower operating temperature range.

View details

Alternative comparison matrix

Feature / factorHT7550-1HT7150-1ME6210A50PGAlt 3Compatibility / risk
PackageSOT-89-3SOT-89-3-SOT-89-3 — Package matches, increasing likelihood of fit.
Voltage5.0V30V-18V — Maximum input voltage is significantly lower.
Current100mA100mA-500mA — Output current is higher, which is acceptable.
Temperature-40°C to 85°C-25°C to 70°C--25°C to 70°C — Candidate has a narrower operating temperature range.

Application & sourcing insights

Questions & answers

Verified drop-in options for HT7550-1 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.