TPS62740DSSR
Texas Instruments
Needs validationhigh risk
Functionally similar but with a significantly lower input voltage range; requires careful review of operating conditions.
Best Alternatives to TPS62745DSSR
Find and compare alternatives for the Texas Instruments TPS62745DSSR, an ultra-low power 300mA step-down converter in a WSON-12 package. Review functional alternates and parametric options before making a substitution.
AI replacement insight
Electrical riskhigh
Candidates have different voltage ranges or control loops.
Package risklow
Several alternatives exist in the same WSON-12 package.
Firmware risklow
Regulators do not have firmware, so no risk.
Can it be replaced directly?
Direct replacement for TPS62745DSSR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Functional upgrade to a higher-spec part like LM5160ADNTR, which will likely require board redesign.
Main risk
The primary risk is electrical incompatibility, especially mismatched input voltage ranges and different control topologies requiring circuit redesign.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | TPS62745DSSR | TPS62740DSSR | LM5160ADNTR | LMR51450SDRRR | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 3.3V - 10V | 2.2V - 5.5V | 4.5V - 65V | 4V - 36V | 2.2V - 5.5V / 4.5V - 65V / 4V - 36V — Candidate has a much lower maximum input voltage.; LM5160ADNTR: Candidate has a much wider input voltage range.; LMR51450SDRRR: Candidate has a wider input voltage range. |
| Current | 300mA | 300mA | 2A | 5A | 300mA / 2A / 5A — Output current matches.; LM5160ADNTR: Candidate offers significantly higher output current.; LMR51450SDRRR: Candidate offers much higher output current. |
| Package | WSON-12 | WSON-12 | WSON (12) | WSON-12 | WSON-12 / WSON (12) — Package is a physical match.; LM5160ADNTR: Package type and pin count match.; LMR51450SDRRR: Package type and pin count match. |
| Topology | Buck (Step-Down) | DCS-Control | - | - | DCS-Control — Control topology differs, affecting transient response. |
| Pinout | Requires verification | - | Not verified | Not verified | Not verified — Pinout must be verified from datasheet.; LMR51450SDRRR: Pinout must be verified from datasheet. |
Application & sourcing insights
Questions & answers
Verified drop-in options for TPS62745DSSR 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.