SSP7985P33PR
Siproin
Needs validationlow risk
Pin-compatible for the SOT89-3 package with significantly higher input voltage.
Best Alternatives to HT7533 30v
Finding a replacement for the HT7533 30V LDO involves matching its 3.3V output, 30V input, and 100mA current across its TO-92, SOT89-3, and SOT-23-3 packages. Key alternatives offer pin-compatibility for specific packages or upgraded performance.
AI replacement insight
Package riskhigh
Target has multiple packages/pinouts; replacement must match the one in use.
Electrical risklow
Many candidates offer superior voltage/current ratings.
Firmware risklow
Simple LDOs typically do not require firmware changes.
Can it be replaced directly?
Direct replacement for HT7533 30V should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Start with Datasheet verified or Strong match candidates for HT7533 30V, then review parametric alternatives for package and electrical fit.
Main risk
The main risk is ensuring package and pinout compatibility, as the target part is offered in multiple packages with different pin assignments.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | HT7533 30V | SSP7985P33PR | TPL820F33-89TR | SSP7903P33FR | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TO-92, SOT89-3, SOT-23-3 | SOT89-3 | SOT89-3 | SOT223 | SOT89-3 / SOT223 / SOT-23 — Matches one of target's packages.; TPL820F33-89TR: Matches one of target's packages.; SSP7903P33FR: Different package requires board redesign.; TLV76033DBZR: Matches SOT-23-3 package variant. |
| Pinout | 1-GND, 2-VIN, 3-VOUT | 1-GND, 2-VIN, 3-VOUT | 1-GND, 2-VIN, 3-VOUT | - | 1-GND, 2-VIN, 3-VOUT / 1-IN, 2-GND, 3-OUT — Pinout matches target's SOT89-3 variant.; TPL820F33-89TR: Pinout matches target's SOT89-3 variant.; TLV76033DBZR: Pinout is different, requires board redesign. |
| Voltage | 30V | 60V | 42V | 40V | 60V / 42V / 40V — Significantly higher max input voltage.; TPL820F33-89TR: Higher max input voltage provides more margin.; SSP7903P33FR: Higher max input voltage. |
| Current | 100mA | 150mA | 180mA | 1A | 150mA / 180mA / 1A / 100mA — Higher output current capability.; TPL820F33-89TR: Higher output current capability.; SSP7903P33FR: Significantly higher output current.; TLV76033DBZR: Output current matches target. |
| Temperature | -25°C to 70°C | - | -40°C to 125°C | - | -40°C to 125°C — Wider operating temperature range. |
| Dropout | 0.1V | - | - | - | 1.2V @ 100mA — Significantly higher dropout voltage. |
Application & sourcing insights
Questions & answers
Verified drop-in options for HT7533 30V 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.