Is there a pin-compatible replacement for TPMIC5219-3.3YM5?

Several alternatives exist in the same SOT-23-5 package, but pinout is not guaranteed to be identical. Pin-to-pin compatibility must be verified by comparing datasheets before substitution.

What risks should I check before replacing TPMIC5219-3.3YM5?

Key risks include a narrower input voltage range (many alternatives are limited to 5.5V), higher quiescent current, and different pinout. Always check these parameters against your circuit's requirements.

TPMIC5219-3.3YM5 Alternatives, Datasheet & Cross Reference | TECH PUBLIC

Finding a replacement for the TPMIC5219-3.3YM5 LDO requires careful attention to its wide 2-20V input range and ultra-low 1.5µA quiescent current. This page reviews several functional alternatives.

AI replacement insight

Electrical riskhigh

Most alternatives have a much narrower input voltage range and/or higher quiescent current.

Package risklow

SOT-23-5 is a standard package, but pinout must be verified.

Can it be replaced directly?

No direct drop-in replacement is confirmed. The SSP7603P33M5R is a strong functional alternative, but requires verification of input voltage and pinout.

Best replacement path

For applications needing a wide input range, SSP7603P33M5R is the closest match, but check the 15V max input. For 5V systems, many other options like TPL740F33-5TR exist.

Main risk

The primary risk is substituting a wide-input (20V) LDO with a common 5.5V-max part, which can lead to device failure if the system voltage exceeds this limit.

Recommended alternatives

Strong functional alternative with matching low quiescent current but a lower 15V max input voltage.

View details

Alternative comparison matrix

Feature / factor	TPMIC5219-3.3YM5	SSP7603P33M5R	BL8075CB5TR33	Compatibility / risk
Voltage	0.42V @ 100mA	0.17V @ 100mA	3V to 16V	0.17V @ 100mA / 3V to 16V — Lower dropout is an improvement.; BL8075CB5TR33: Input range is narrower on both ends.
Current	1.5µA	1.5µA	10µA	1.5µA / 10µA — Quiescent current matches target's key feature.; BL8075CB5TR33: Quiescent current is higher.
Package	SOT-23-5	SOT23-5	SOT-23-5	SOT23-5 / SOT-23-5 — Package matches, but pinout requires verification.; BL8075CB5TR33: Package matches, but pinout requires verification.

Application & sourcing insights

Questions & answers

The SSP7603P33M5R is a strong candidate, matching the low quiescent current but with a slightly lower max input voltage of 15V. Always verify pinout and voltage requirements for your specific application.