Is there a pin-compatible replacement for TLV75533PDBVR?

Yes, several LDOs like TPL740F33-5TR and RP114N331D-TR-FF share the same SOT-23-5 package and pinout. However, electrical differences mean they are not drop-in replacements and require engineering validation.

What risks should I check before replacing TLV75533PDBVR?

Key risks include higher minimum input voltage, increased dropout voltage which affects regulation headroom, lower maximum operating temperature, and reduced output current capability. Always verify these against your circuit's requirements.

TLV75533PDBVR Alternatives, Datasheet & Cross Reference | Texas Instruments

The TLV75533PDBVR is a popular 3.3V, 500mA LDO from Texas Instruments in a SOT-23-5 package, known for its low quiescent current and low dropout. Finding a substitute requires careful review of electrical parameters.

AI replacement insight

Electrical riskmedium

Dropout, min input voltage, and quiescent current differ across candidates.

Package risklow

All viable candidates are SOT-23-5 with matching pinouts.

Sourcing risklow

Candidates from various manufacturers offer supply chain diversity.

Can it be replaced directly?

No direct drop-in replacement is identified; all candidates have parametric differences requiring review. TPL740F33-5TR is a strong functional alternative if the higher dropout and minimum input voltage are acceptable.

Best replacement path

form_fit_function alternatives with pin compatibility but electrical caveats.

Main risk

The primary risk is insufficient voltage headroom due to candidates having higher dropout voltage and minimum input voltage requirements than the target.

Recommended alternatives

Pin-compatible SOT-23-5 alternative with matching current, but requires review of input voltage and dropout.

View details

Alternative comparison matrix

Feature / factor	TLV75533PDBVR	TPL740F33-5TR	RP114N331D-TR-FF	Compatibility / risk
Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5 — Pinout appears identical based on datasheet review.; RP114N331D-TR-FF: Pinout appears identical based on datasheet review.
Voltage	238 mV @ 500 mA	400 mV @ 500 mA	3.3 V	400 mV @ 500 mA / 3.3 V — Higher dropout requires more input headroom.; RP114N331D-TR-FF: matched
Current	500 mA	500 mA	300 mA	500 mA / 300 mA — matched; RP114N331D-TR-FF: Significant downgrade from target's 500mA.
Temperature	-40°C to 125°C	-40°C to +125°C	-40°C to 85°C	-40°C to +125°C / -40°C to 85°C — matched; RP114N331D-TR-FF: Reduced max operating temperature.
Application	Yes (Active discharge)	-	Yes	Yes — Matches target's active output discharge feature.

Application & sourcing insights

Questions & answers

While no perfect drop-in exists, parts like 3PEAK's TPL740F33-5TR offer the same output current and package but require checking input voltage and dropout performance for your specific application.