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Best Alternatives to TPS560430X3FDBVR

Package: SOT-23-6Texas InstrumentsVoltage Regulators - DC DC Switching RegulatorsSeries: SIMPLE SWITCHER®Package: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - Input (Min): 4VVoltage - Input (Max): 36VVoltage - Output (Min/Fixed): 3.3V

TPS560430X3FDBVR is a robust 36V, 600mA synchronous buck converter from Texas Instruments in a SOT-23-6 package. It offers a fixed 3.3V output with forced PWM for stable, low-noise performance in industrial systems.

AI replacement insight

Electrical riskmedium

Change from fixed to adjustable output requires adding external components and layout changes.

Package risklow

Viable alternatives share the same SOT-23-6 package, ensuring mechanical fit.

Can it be replaced directly?

No direct, drop-in replacement exists. The closest alternatives are adjustable regulators from the same manufacturer, requiring minor board modification.

Best replacement path

Transition to an adjustable regulator like LMR54410FDBVR, adding two feedback resistors to the layout.

Main risk

The primary risk is assuming a drop-in replacement exists; all viable alternatives require changing from a fixed-output to an adjustable-output design.

Recommended alternatives

3
LMR54410FDBVR package
LMR54410FDBVR

Texas Instruments

Needs validationmedium risk

Strong functional match from TI with matching control mode and wider voltage range, but requires board changes for its adjustable output.

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Alternative comparison matrix

Feature / factorTPS560430X3FDBVRLMR54410FDBVRLMR54410DBVRSY8201CABCCompatibility / risk
PackageSOT-23-6SOT-23-6SOT-23-6SOT23-6SOT-23-6 / SOT23-6 — Package matches.; LMR54410DBVR: Package matches.; SY8201CABC: Package matches.
Voltage3.3V FixedAdjustableAdjustableAdjustableAdjustable — Requires external resistors to set output voltage.; LMR54410DBVR: Requires external resistors to set output voltage.; SY8201CABC: Requires external resistors to set output voltage.
Current0.6A1.0A1.0A1.0A1.0A — Higher output current capability.; LMR54410DBVR: Higher output current capability.; SY8201CABC: Higher output current capability.
Control ModeFPWMFPWMPFM/Auto-FPWM / PFM/Auto — Control mode matches.; LMR54410DBVR: Different control mode may affect noise.
Frequency1.1MHz--1.15MHz1.15MHz — Switching frequency is very similar.

Application & sourcing insights

Questions & answers

The LMR54410FDBVR from Texas Instruments is a strong functional alternative. It offers a wider input voltage range and higher current in the same package and frequency, but requires adding feedback resistors to set the 3.3V output.