
Texas Instruments
A functional alternate in the same package, but requires board changes for its adjustable output.
Finding a substitute for the TPS61240DRVR 5V boost converter requires careful review of electrical specifications. While some parts share the WSON-6 package, key differences in output current, input voltage, and function are common, often necessitating a board redesign.
Candidates have lower current, different voltage ranges, or require redesign (adjustable vs. fixed).
While package may match, pinouts differ, requiring new PCB layout.
Direct replacement for TPS61240DRVR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Use a functional alternate like TPS61040DRVR, which requires adding feedback resistors and verifying its output current capability for the specific application.
The main risk is electrical incompatibility, primarily insufficient output current or the need for a board redesign to accommodate an adjustable regulator.

Texas Instruments
A functional alternate in the same package, but requires board changes for its adjustable output.
| Feature / factor | TPS61240DRVR | TPS61040DRVR | TPS60150DRVR | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | WSON-6 | WSON-6 | WSON-6 | WSON-6 — Package matches, but pinout requires verification.; TPS60150DRVR: Package matches. | |
| Output Voltage V | 5V Fixed | Adjustable | - | Adjustable — Requires external feedback resistors to set 5V output. | |
| Input Voltage V | 2.3V to 5.5V | 1.8V to 6V | 2.7V to 5.5V | 1.8V to 6V / 2.7V to 5.5V — Wider input range is generally favorable.; TPS60150DRVR: Higher minimum input voltage (2.7V vs 2.3V). | |
| Output Current A | 450mA (Output) | 400mA (Switch) | 140mA | 400mA (Switch) / 140mA — Output current depends on Vin/Vout and must be calculated. May be lower than target.; TPS60150DRVR: Significantly lower output current. | |
| Topology | Boost | Boost | Charge Pump | Boost / Charge Pump — Functional topology matches.; TPS60150DRVR: Different topology may have different noise/efficiency characteristics. |
Verified drop-in options for TPS61240DRVR 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.