STMicroelectronics L78L
L78L variants from STMicroelectronics
L78L Overview
What changes between part numbers, and what to check before you lock the BOM — Integrated Circuits (ICs).
Key Features
- Footprint / package: 8-SOIC (0.154", 3.90mm Width)Single package option across listed variants; still confirm reel vs tube suffix if you auto-insert.
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 22 distinct suffix patternsExamples: 33ACD13TR, 05ABD13TR, 05ACD13TR, 05ACUTR, 05ACZ-AP (+17 more). Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Integrated Circuits (ICs) — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 22 L78L part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| L78L33ACD13TR | Package: 8-SOIC (0.154", 3.90mm Width) | Mounting Type: Surface Mount | Operating Temperature: 0°C ~ 125°C | Output Type: Fixed | Voltage Input Max: 30V | Supplier Device Package: 8-SOIC | 8-SOIC (0.154", 3.90mm Width) | STMicroelectronics | Active | Compliant | In Stock | |
| L78L05ABD13TR | 5V 100mA LDO Voltage Regulator, SO, 30V In, 1.7V Dropout | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L05ACD13TR | 5V LDO Regulator, 100mA, 30V In, SO Package, 4% Acc | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L05ACUTR | 5V LDO Regulator, 100mA, 30V In, SOT-89, SM | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L05ACZ-AP | 0.1A positive voltage regulators | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L05CD13TR | 5V LDO Regulator, 100mA, 30V In, SO Package | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L08ABUTR | 8V 100mA LDO Voltage Regulator, SOT-89, 30V In, 1.7V Dropout | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L08ABZ-AP | 8V 100mA LDO Linear Voltage Regulator, TO-92, 30V In | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L09ACZ-TR | 9V 100mA LDO Linear Voltage Regulator, TO-92, 30V In | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L10ACUTR | 10V LDO Regulator, 100mA, SOT-89, 30V In, 4% Acc | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L12ACD13TR | 12V LDO Regulator, 100mA, 35V In, SO, Surface Mount | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L12ACUTR | 12V LDO Regulator, 100mA, 35V In, SOT-89, SM | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L12ACZ-TR | 12V LDO Regulator, 100mA, 40V In, TO-92, Through Hole | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L15ABUTR | 15V 100mA LDO Voltage Regulator, SOT-89, 35V In | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L15ABZ-AP | 15V 100mA LDO Linear Voltage Regulator TO-92 35V In | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L15ACUTR | 15V LDO 100mA SOT-89 Linear Voltage Regulator | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L15ACZ | 15V LDO Regulator, 100mA, 35V In, TO-92, Positive | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L33ABD-TR | 3.3V 100mA LDO Voltage Regulator, SO, 30V In | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L33ABUTR | 3.3V LDO Regulator, 100mA, SOT-89, 30V In, 1.7V Dropout | - | STMicroelectronics | Active | Compliant | In Stock | |
| L78L33ABZ-AP | 3.3V 100mA LDO Linear Voltage Regulator, TO-92, 30V In | - | STMicroelectronics | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on L78L map to package, grade, and reel options.
How to Choose the Right L78L Integrated Circuits (ICs)
Match the footprint first
Packages here: 8-SOIC (0.154", 3.90mm Width). Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For L78L, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "L78L" — include the full suffix (e.g. 33ACD13TR, 05ABD13TR, 05ACD13TR). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for L78L product family
Identity
Variant Parameters
Source L78L with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 22 ordering variants from STMicroelectronics. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the L78L product family.