Is there a pin-compatible replacement for TPS61041DBVR?

No, there are no confirmed pin-to-pin compatible replacements that can be dropped in without circuit modifications. While candidates may share the same package and pinout, their electrical characteristics, especially the feedback voltage, are different.

What risks should I check before replacing TPS61041DBVR?

Before replacing, you must check three main risks: 1) Feedback Voltage Mismatch, which requires changing external resistors. 2) Input Voltage Range, ensuring the replacement works with your system's minimum voltage. 3) Switching Frequency, which can affect efficiency and external component values.

TPS61041DBVR Alternatives, Datasheet & Cross Reference | Texas Instruments

Finding a substitute for the TPS61041DBVR boost converter involves careful review of key parameters. While several alternatives exist in the same SOT-23-5 package, none are direct drop-in replacements and require circuit modifications.

AI replacement insight

Electrical riskhigh

All candidates have a different feedback voltage, requiring external resistor changes to achieve the correct output.

Package risklow

All viable candidates use the same SOT-23-5 package, ensuring physical compatibility on the PCB.

Sourcing riskmedium

Alternatives are from different manufacturers, which may have varying availability and quality control.

Can it be replaced directly?

No, there are no confirmed direct drop-in replacements for the TPS61041DBVR. All suitable alternatives require changes to external components, primarily the feedback resistor network.

Best replacement path

Use TPS61040DBVRG as a functional alternative, but you must change the external feedback resistors to set your desired output voltage. Verify the pinout is identical before layout.

Main risk

The primary risk is the difference in internal feedback voltage across all candidates, which makes them not drop-in compatible and requires redesign of the voltage-setting circuit.

Recommended alternatives

Functional alternative in the same package, but requires external component changes due to different feedback voltage.

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Alternative comparison matrix

Feature / factor	TPS61041DBVR	TPS61040DBVRG	RY3750	Compatibility / risk
Package	SOT-23-5	SOT23-5	SOT-23-5	SOT23-5 / SOT-23-5 — Package matches.; RY3750: Package matches.
Voltage	~0.5V	1.233V	1.23V	1.233V / 1.23V — Requires recalculating external feedback resistors.; RY3750: Requires recalculating external feedback resistors.
Current	250mA	400mA	600mA	400mA / 600mA — Higher switch current limit provides more margin.; RY3750: Higher switch current limit provides more margin.
Frequency	1MHz	1MHz	1.2MHz	1MHz / 1.2MHz — Switching frequency matches.; RY3750: Higher frequency may require different external components.

Application & sourcing insights

Questions & answers

The best functional alternative is likely the HANSCHIP TPS61040DBVRG. It matches the package and input voltage range but requires changing the feedback resistors to set the correct output voltage due to a different internal reference.