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Product Detailed Parameters
- Description：IC REG LINEAR 15V 100MA TO92-3
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Box (TB)
- 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：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The L78L15ACZ-AP is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series. It provides a fixed output voltage of 15 V with an accuracy of ±4%. The device supports a maximum output current of 100 mA and operates within a junction temperature range of 0 to 125 °C. It accepts input voltages up to 30 V for this specific output level. The component utilizes internal current limiting and thermal shutdown mechanisms to ensure operational safety.
Feature Summary
- Integrates internal current limiting, thermal overload protection, and short-circuit protection for robust operation.
- Designed as a direct replacement for Zener diode and resistor combinations, offering 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
- Construction of high-current regulators when used with power pass elements
Procurement Notes
Verify that the ordering suffix 'Z' corresponds to the TO-92 package and 'AP' indicates the specific tape-and-reel or bulk configuration intended for your assembly process. Confirm that the AC designation matches the required ±4% output voltage tolerance for your circuit design specifications before finalizing procurement.
Selection Notes
Select this component when a fixed 15 V output is required with moderate load currents up to 100 mA. Ensure the input voltage remains within the 30 V absolute maximum rating. Consider the thermal resistance characteristics of the TO-92 package to determine if adequate heat sinking is necessary for sustained operation at higher ambient temperatures.
Part Context
This part belongs to the L78Lxx family of low-power linear regulators. Unlike the higher-current L78xx series, the L78L series is optimized for applications requiring up to 100 mA. The L78L15 variant specifically targets 15 V regulation needs within consumer electronics and industrial control circuits where compact packaging and simple implementation are prioritized.
Replacement Considerations
Compatible substitutes include the NCV78L15ABPRMG from onsemi and the UA78L15ACLPR from Texas Instruments. Verify pinout compatibility and thermal performance characteristics when transitioning between manufacturers.
FAQ
What is the maximum input voltage allowed for the L78L15ACZ-AP?
The maximum DC input voltage is 30 V when the output voltage is 15 V.
Does the L78L15ACZ-AP require external capacitors to function?
No external components are strictly required for the regulator to operate, though input and output capacitors are typically recommended for stability in practical applications.
How does the AC suffix affect the output voltage accuracy?
The AC suffix indicates a tighter output voltage tolerance of ±4%, compared to the ±8% tolerance found in devices with the C suffix.
