LMR36520FADDAR
Texas Instruments
Needs validationlow risk
A pin-compatible alternative from TI with a wider 65V input range, but a higher 4.2V minimum input.
Best Alternatives to LMR33620ADDAR
The LMR33620ADDAR is a versatile 36V, 2A step-down converter from Texas Instruments. Several alternatives exist within the TI portfolio, offering upgrades in current or input voltage, though some may require circuit modifications.
AI replacement insight
Electrical riskmedium
Several candidates have different switching frequencies or input voltage ranges.
Package risklow
Most strong candidates use the same HSOIC-8 package.
Firmware risklow
These are analog-controlled regulators with no firmware.
Can it be replaced directly?
Direct replacement for LMR33620ADDAR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
LMR36520FADDAR is the most promising direct replacement, pending verification of the 4.2V minimum input voltage.
Main risk
The primary risk is electrical incompatibility, such as different switching frequencies or input voltage ranges, which can necessitate redesign of external circuitry.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | LMR33620ADDAR | LMR36520FADDAR | LMR33630BDDAR | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | HSOIC-8 | HSOIC-8 | HSOIC-8 | HSOIC-8 — Package and pin count match.; LMR33630BDDAR: Package and pin count match. | |
| Pinout | Assumed | Claimed P2P by TI | - | Claimed P2P by TI — Manufacturer datasheet claims pin-to-pin compatibility with LMR33620. | |
| Voltage | 3.8V - 36V | 4.2V - 65V | 3.8V - 36V | 4.2V - 65V / 3.8V - 36V — Higher max Vin is an upgrade, but higher min Vin (4.2V vs 3.8V) is a risk.; LMR33630BDDAR: Input voltage range matches. | |
| Current | 2.0A | 2.0A | 3.0A | 2.0A / 3.0A — Output current matches.; LMR33630BDDAR: Higher output current provides an upgrade path. | |
| Switching Frequency | 400kHz | 400kHz | 1.4MHz | 400kHz / 1.4MHz — Switching frequency matches, simplifying design transition.; LMR33630BDDAR: Significantly different frequency requires redesign of external components. |
Application & sourcing insights
Questions & answers
Verified drop-in options for LMR33620ADDAR 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.