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Product Detailed Parameters
- Description：IC REG LINEAR 15V 100MA TO92-3
- Series：-
- Mfr：STMicroelectronics
- Package：Bag
- 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：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The L78L15ABZ is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in a TO-92 package. It provides a fixed output voltage of 15 V with an output current capability up to 100 mA. The device features internal current limiting and thermal shutdown protection. It operates within a junction temperature range of -40 °C to +125 °C. Maximum input voltage is 35 V for this output voltage variant. Quiescent current is typically 6.5 mA at 25 °C.
Feature Summary
- Integrated thermal overload protection and short-circuit protection ensure robust operation under fault conditions.
- Designed as a direct replacement for Zener diode and resistor combinations, offering improved performance with lower quiescent current and reduced noise.
- Requires no external components for basic regulation functionality.
Applications
- Local or on-card voltage regulation
- Elimination of noise associated with single-point regulation systems
- Replacement for discrete Zener diode/resistor voltage reference circuits
Procurement Notes
Verify the specific suffix 'ABZ' against official ordering information to confirm the exact tolerance class (±4%) and package type (TO-92). Ensure that the maximum input voltage rating aligns with the system design requirements for the 15 V output variant. Confirm compliance with RoHS directives if required by the application environment.
Selection Notes
Select this component when a fixed 15 V output is required with moderate current demands up to 100 mA. The wide operating temperature range makes it suitable for industrial environments. Consider the thermal resistance characteristics of the TO-92 package and the necessity of adequate heat sinking for sustained high-load operations.
Part Context
This part belongs to the L78Lxx family of low-current positive voltage regulators. The family includes various fixed output voltages ranging from 3.3 V to 24 V. The 'A' designation indicates a tighter output voltage tolerance compared to the 'C' variant. These regulators are widely used in general-purpose power supply applications requiring simple, reliable voltage regulation.
Replacement Considerations
Compatible substitutes include other L78L15 variants such as L78L15ACUTR or L78L15ABZ-AP, provided pinout and electrical specifications match. Verify that alternative packages maintain similar thermal performance characteristics.
