ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LINEAR 15V 100MA SOT89-3
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：15V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：6 mA
- Current - Supply (Max)：6.5 mA
- PSRR：39dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-243AA
- Supplier Device Package：SOT-89-3
- Grade：-
- Qualification：-
Download product information
Overview
The L78L15ACUTR is a three-terminal positive linear voltage regulator manufactured by STMicroelectronics, delivering a fixed 15 V output with up to 100 mA current capability. It operates within an input voltage range of 17.5 V to 30 V and maintains a quiescent current of approximately 6.5 mA at 25 °C. The device features ±4% output voltage tolerance and includes internal thermal overload protection and short-circuit limiting. Designed for surface-mount applications, it utilizes the SOT-89-3 package and supports an operating junction temperature range from 0 °C to 125 °C.
Feature Summary
- Integrates internal current limiting and thermal shutdown mechanisms to ensure operational reliability under fault conditions.
- Provides fixed 15 V regulation without requiring external components, simplifying circuit design.
- Offers improved performance over Zener diode/resistor combinations with lower quiescent current and reduced noise.
Applications
- Local or on-card voltage regulation to eliminate noise associated with single-point distribution.
- Replacement for Zener diode and resistor networks in low-power supply circuits.
- Configuration with power pass elements to construct high-current voltage regulators.
Procurement Notes
Verify the specific suffix 'AC' confirms the required ±4% output voltage tolerance and the 0 °C to 125 °C operating temperature range. Ensure the SOT-89-3 package footprint matches the target PCB layout. Confirm that the maximum input voltage does not exceed the absolute rating for the 15 V variant. Check RoHS compliance status if environmental regulations apply to the final assembly.
Selection Notes
Select this component when a stable 15 V rail is needed for low-to-moderate current loads up to 100 mA. The SOT-89-3 package is suitable for space-constrained surface-mount designs. Consider the dropout voltage characteristics relative to the minimum expected input voltage. Verify thermal dissipation requirements based on the difference between input and output voltages at maximum load.
Part Context
This part belongs to the L78L series of three-terminal positive regulators from STMicroelectronics. The series provides fixed output voltages ranging from 3.3 V to 24 V in various packages including TO-92, SO-8, and SOT-89. The L78LxxAC designation specifically indicates the tighter ±4% voltage accuracy grade compared to the standard C version.
Replacement Considerations
UA78L15ACPK
FAQ
What is the output voltage tolerance for the L78L15ACUTR?
The 'AC' suffix indicates a ±4% output voltage tolerance, providing higher precision than the standard ±8% (C) version.
Does the L78L15ACUTR require external capacitors for stability?
No external components are required for basic operation, although input and output capacitors are recommended in typical application circuits to prevent oscillation.
