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Best Alternatives to TX4137

Package: SOT23-6Shenzhen Xindingsheng Technology Co., Ltd.Voltage Regulators - DC DC Switching RegulatorsInput Voltage Range: 5.5 V to 60 VPeak Output Current: 0.6 ASwitching Frequency: 500 kHzInternal MOSFET RDS(ON): 0.9 ΩPackage Type: SOT23-6

TX4137 is a 60V, 0.6A step-down (buck) switching regulator in a SOT23-6 package. Finding a direct replacement requires careful review of the input voltage range, as potential substitutes have different requirements.

AI replacement insight

Electrical riskhigh

Candidate minimum input voltage (11V) is much higher than target (5.5V).

Package risklow

Package and pinout are a match.

Firmware risklow

Not a programmable device.

Can it be replaced directly?

Direct replacement for TX4137 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

TD1466TR or TD1836 if the application's input voltage is always above 11V.

Main risk

The minimum input voltage of potential replacements (11V) is higher than the target's (5.5V), which could cause circuit failure at lower input voltages.

Recommended alternatives

2
TD1466TR package
TD1466TR

Techcode

Needs validationhigh risk

Pin-compatible Buck regulator, but requires input voltage to be above 11V. Higher current rating.

View details

Alternative comparison matrix

Feature / factorTX4137TD1466TRTD1836Alt 3Compatibility / risk
PackageSOT23-6SOT23-6SOT23-6SOT23-6 — Package matches.; TD1836: Package matches.
PinoutPin-compatiblePin-compatiblePin-compatiblePin-compatible — Pinout matches based on datasheet review.; TD1836: Pinout matches based on datasheet review.
Voltage5.5 V to 60 V11 V to 60 V11 V to 80 V11 V to 60 V / 11 V to 80 V — Higher minimum input voltage (11V vs 5.5V).; TD1836: Higher min (11V vs 5.5V) and max (80V vs 60V) input voltage.
Current0.6 A0.8 A0.8 A0.8 A — Higher peak output current.; TD1836: Higher output current.
Frequency500 kHz480 kHz480 kHz480 kHz — Slightly different switching frequency.; TD1836: Slightly different switching frequency.

Application & sourcing insights

Questions & answers

Verified drop-in options for TX4137 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.