L78L05ABZ STMicroelectronics Integrated Circuit (Other) In Stock
The L78L05ABZ is a fixed 5V positive linear voltage regulator from STMicroelectronics, delivering up to 100mA output current from a 7V to 20V input range. It achieves excellent line regulation of 0.15% and load regulation of 0.06% with a typical dropout voltage of 1.7V. Available in a TO-92 package, in stock from authorized distributors with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- L78L05ABZ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.0683(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 5V regulated output with tight line regulation of 0.15% and load regulation of 0.06% for stable analog power rails
- Wide input voltage range from 7V to 20V with 30V absolute maximum rating handles unregulated supply variations
- Internal thermal overload protection and short-circuit current limiting enhance system reliability without external components
- Low-cost TO-92 through-hole package simplifies prototyping, educational, and low-volume production applications
- Decades-proven 78L series architecture ensures broad ecosystem support with widely available drop-in replacements
Applications
The L78L05ABZ is widely used as a local 5V power supply in microcontroller boards, op-amp circuits, and analog sensor modules where a modest 100mA output current is sufficient. Its through-hole TO-92 package makes it a popular choice for educational kits, hobby electronics, and prototype power stages. Industrial control panels and legacy equipment repairs also rely on this part for reliable 5V bias generation from unregulated DC supplies.
Specifications
| YTEOL | 5.6 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 1.7V |
| Input Voltage Absolute-Max | 30V |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 7V |
| JESD-30 Code | O-XBCY-T3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.15% |
| Load Regulation-Max | 0.06% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.07A |
| Output Voltage1-Max | 5.25V |
| Output Voltage1-Min | 4.75V |
| Output Voltage1-Nom | 5V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | SIP3,.1,50 |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Packing Method | TUBE |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Voltage Tolerance-Max | 5% |
| ## L78L05ABZ Alternates Showing results | Image |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for L78L05ABZ:
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Frequently Asked Questions
What output voltage and current does the L78L05ABZ provide?
The L78L05ABZ delivers a fixed 5V regulated output with up to 100mA continuous output current, making it suitable for low-power analog and digital circuits requiring a stable 5V supply.
What is the input voltage range for the L78L05ABZ?
It accepts an input voltage from 7V to 20V, with an absolute maximum rating of 30V. A minimum 2V headroom above the 5V output is needed to maintain regulation given the 1.7V typical dropout.
What package does the L78L05ABZ use?
The L78L05ABZ is supplied in a TO-92 through-hole package, a three-pin plastic transistor outline that is easy to solder by hand and widely used in prototyping and educational designs.
Does the L78L05ABZ have any built-in protection features?
Yes, it includes internal thermal overload protection and short-circuit current limiting, which prevent damage to the device and the load circuit under abnormal operating conditions without requiring external protection components.
What are common alternatives to the L78L05ABZ?
Compatible alternatives include the MC78L05AC from ON Semiconductor and the UA78L05 from Texas Instruments, all sharing the same TO-92 pinout, 5V fixed output, and 100mA current rating for easy drop-in replacement.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1086 | $0.11 |
| 1000+ | $0.0790 | $79.00 |
| 2500+ | $0.0735 | $183.75 |
| 5000+ | $0.0683 | $341.50 |
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