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Best Alternatives to LMR33630BDDAR

Package: 8-PowerSOIC (0.154", 3.90mm Width)Texas InstrumentsVoltage Regulators - DC DC Switching RegulatorsSeries: SIMPLE SWITCHER®Package: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - Input (Min): 3.8VVoltage - Output (Min/Fixed): 1VCurrent - Output: 3A

LMR33630BDDAR is a 36V, 3A synchronous step-down converter from Texas Instruments in an HSOIC-8 package. This page provides analysis of potential alternatives, including likely pin-compatible options and functional upgrades that require engineering review.

AI replacement insight

Electrical riskmedium

Switching frequency changes require recalculating external inductor and capacitor values.

Package risklow

Several alternatives share the same HSOIC-8 package, but pinout must always be verified.

Firmware risklow

Not applicable for this type of analog component.

Can it be replaced directly?

Direct replacement for LMR33630BDDAR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

LMR33630CDDAR, a family variant, is the most promising path but requires review of its higher switching frequency (2.1MHz).

Main risk

Switching frequency differences, which impact external component selection, efficiency, and EMI performance.

Recommended alternatives

2
LMR33630CDDAR package
LMR33630CDDAR

Texas Instruments

Needs validationlow risk

A likely pin-compatible family variant with a higher switching frequency that requires engineering review.

View details

Alternative comparison matrix

Feature / factorLMR33630BDDARLMR33630CDDARLMR14050SQDDARQ1LMR16030PDDARCompatibility / risk
PackageHSOIC-8HSOIC-8HSOIC (8)HSOIC (8)HSOIC-8 / HSOIC (8) — Package matches target.; LMR14050SQDDARQ1: Package matches target.; LMR16030PDDAR: Package matches target.
Voltage3.8V - 36V3.8V - 36V4V - 40V4.3V - 60V3.8V - 36V / 4V - 40V / 4.3V - 60V — Input voltage range matches.; LMR14050SQDDARQ1: Wider input voltage range.; LMR16030PDDAR: Higher max voltage but also higher min voltage.
Current3.0A3.0A5A3A3.0A / 5A / 3A — Output current matches.; LMR14050SQDDARQ1: Higher output current capability.; LMR16030PDDAR: Output current matches.
Frequency1.4MHz2.1MHz200kHz - 2.5MHz200kHz - 2.5MHz2.1MHz / 200kHz - 2.5MHz — Higher frequency may require inductor/capacitor value changes.; LMR14050SQDDARQ1: Adjustable frequency requires external resistor and pinout check.; LMR16030PDDAR: Adjustable frequency requires external resistor and pinout check.

Application & sourcing insights

Questions & answers

Verified drop-in options for LMR33630BDDAR 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.