UA78L12ACD Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UA78L12ACD is a 100mA positive fixed 12V linear voltage regulator from Texas Instruments. Features 35V max input, 1.7V dropout voltage, and SOT-23 packaging. From $0.13, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UA78L12ACD Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1260(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 12V positive output voltage with tight regulation accuracy
- 100mA output current capability suitable for low-power applications
- Wide input voltage range up to 30V with 35V absolute maximum
- Low dropout voltage of 1.7V for efficient operation
- Small Outline Package (SOP-8) for compact PCB designs
- Built-in thermal and short-circuit protection
Applications
The UA78L12ACD is widely used in consumer electronics and industrial equipment requiring a stable 12V supply rail. It is ideal for powering microcontrollers, sensors, and analog circuits in battery-operated devices where low quiescent current is essential. Additional applications include post-regulation in DC-DC converter designs, reference voltage generation, and local regulation in distributed power systems.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 1.7V |
| Input Voltage Absolute-Max | 35V |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 14.5V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.25% |
| Load Regulation-Max | 0.1% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 0.1A |
| Output Voltage1-Max | 12.6V |
| Output Voltage1-Min | 11.4V |
| Output Voltage1-Nom | 12V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 5% |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage of the UA78L12ACD?
The UA78L12ACD provides a fixed positive output voltage of 12V. It delivers up to 100mA of output current with a line regulation of 0.25% maximum, making it suitable for precision low-power analog and digital circuits.
What input voltage range does the UA78L12ACD support?
The UA78L12ACD operates with an input voltage range of 14.5V to 30V, with an absolute maximum rating of 35V. The typical dropout voltage is 1.7V, so the input must be at least 13.7V to maintain regulated 12V output.
What package type is the UA78L12ACD available in?
The UA78L12ACD is available in a Small Outline Package (SOP-8 / R-PDSO-G8). This compact surface-mount package makes it well-suited for space-constrained PCB designs in consumer electronics and industrial applications.
What are common applications for the UA78L12ACD?
Common applications include local voltage regulation for microcontrollers, op-amps, and sensors, as well as post-regulation stages in switched-mode power supplies. It is also used in automotive accessories, industrial control boards, and battery-powered portable devices requiring a stable 12V rail.
Is the UA78L12ACD RoHS compliant?
Yes, the UA78L12ACD is RoHS compliant. It carries a Pb-free code of 'Yes' and a JESD-609 code of e4, confirming it meets lead-free and environmental compliance requirements for use in modern electronics manufacturing.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1890 | $0.19 |
| 27+ | $0.1575 | $4.25 |
| 64+ | $0.1260 | $8.06 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”