Is there a pin-compatible replacement for RT9013-28GB?

No direct pin-compatible replacement has been verified. Parts from the same RT9013 family, like RT9013-25GB-MS, are likely pin-compatible but have different output voltages. Always verify the datasheet pinout before use.

What risks should I check before replacing RT9013-28GB?

Key risks include output voltage differences, which can affect circuit performance, and pinout mismatches, which require PCB redesign. Also verify PSRR, dropout voltage, and quiescent current to ensure system stability.

RT9013-28GB Alternatives, Datasheet & Cross Reference | RICHTEK

RT9013-28GB is a 500mA, 2.8V fixed LDO in a SOT-23-5 package. Finding a direct replacement requires careful verification of electrical parameters and pinout, as alternatives may have different voltages or require redesign.

AI replacement insight

Electrical riskhigh

Candidates have different output voltage or are an adjustable type.

Package risklow

SOT-23-5 is a standard package, so mechanical fit is expected.

Firmware risklow

LDOs are analog components and do not involve firmware.

Can it be replaced directly?

No direct drop-in replacement was found. All viable candidates require either parameter compromise or circuit redesign.

Best replacement path

If the system tolerates 2.5V, RT9013-25GB-MS is the simplest path. Otherwise, a redesign using an adjustable LDO like RY6050-ADJM5R is necessary.

Main risk

The main risk is functional failure due to incorrect output voltage or pinout incompatibility, requiring board changes.

Recommended alternatives

Parametric alternative in the same package and current rating, but with a 2.5V fixed output.

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Alternative comparison matrix

Feature / factor	RT9013-28GB	RT9013-25GB-MS	RY6050-ADJM5R	Compatibility / risk
Package	SOT-23-5	SOT-23-5	SOT23-5	SOT-23-5 / SOT23-5 — Same package and pin count.; RY6050-ADJM5R: Same package and pin count.
Voltage	2.8V	2.5V	Adjustable	2.5V / Adjustable — Lower fixed output voltage.; RY6050-ADJM5R: Requires external resistors to set voltage.
Current	500mA	500mA	500mA	500mA — Output current matches.; RY6050-ADJM5R: Output current matches.
Pinout	Verified	Unknown	Different	Unknown / Different — Pinout not verified, but likely same family.; RY6050-ADJM5R: Adjustable LDOs have different pin functions (e.g., ADJ pin).

Application & sourcing insights

Questions & answers

The best alternative depends on design flexibility. RT9013-25GB-MS is from the same family but has a 2.5V output. RY6050-ADJM5R is an adjustable LDO that can be set to 2.8V but requires board changes.