Is there a pin-compatible replacement for H7233-1M5R?

SSP7603P33M5R and TPMIC5219-3.3YM5 use the same SOT23-5 package and are likely pin-compatible, but datasheet verification of the pinout is recommended before board-level replacement.

What risks should I check before replacing H7233-1M5R?

Ensure the candidate's maximum input voltage is at least 15V. Check for differences in dropout voltage and quiescent current, as these can affect power efficiency. Always verify the pinout from the datasheet.

H7233-1M5R Alternatives, Datasheet & Cross Reference | Siproin

Finding a substitute for the H7233-1M5R, a 3.3V 400mA LDO, requires focusing on its 15V maximum input voltage. This page provides verified alternatives that match this critical specification.

AI replacement insight

Electrical risklow

For SSP7603P33M5R, risks are minimal. Other parts may have higher dropout or quiescent current.

Package risklow

All viable candidates use a SOT23-5 package, but pinout must be verified.

Sourcing risklow

Multiple manufacturers produce LDOs with similar core specs, providing sourcing options.

Can it be replaced directly?

SSP7603P33M5R is a strong candidate for direct replacement, pending pinout verification. It offers higher current capability with otherwise matching specifications.

Best replacement path

SSP7603P33M5R is the most promising path, offering an upgrade in current with minimal parametric deviation.

Main risk

The primary risk is using a substitute with an insufficient input voltage range; many similar LDOs only support up to 5.5V, while the target supports 15V.

Recommended alternatives

Offers higher output current (500mA) while matching package, voltage, and dropout characteristics.

View details

Alternative comparison matrix

Feature / factor	H7233-1M5R	SSP7603P33M5R	TPMIC5219-3.3YM5	Compatibility / risk
Package	SOT23-5	SOT23-5	SOT-23-5	SOT23-5 / SOT-23-5 — Package matches, enabling form-fit evaluation.; TPMIC5219-3.3YM5: Package matches, enabling form-fit evaluation.
Voltage	0.17V @ 100mA	0.17V @ 100mA	0.42V @ 100mA	0.17V @ 100mA / 0.42V @ 100mA — Dropout voltage performance is identical.; TPMIC5219-3.3YM5: Dropout voltage is significantly higher, check application headroom.
Current	1.0µA	1.5µA	500mA	1.5µA / 500mA — Quiescent current is slightly higher but still very low.; TPMIC5219-3.3YM5: Higher output current provides more design margin.

Application & sourcing insights

Questions & answers

The SSP7603P33M5R is a strong candidate, offering a higher output current of 500mA while matching key parameters like the 15V input voltage, 3.3V output, and SOT23-5 package.