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Product Detailed Parameters
- Description：IC REG LINEAR 10V 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)：30V
- Voltage - Output (Min/Fixed)：10V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：5.5 mA
- Current - Supply (Max)：6 mA
- PSRR：45dB (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：-
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Overview
The L78L10ACUTR is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in an SOT-89 surface-mount package. It provides a fixed output voltage of 10 V with a maximum continuous output current of 100 mA. The device operates within an input voltage range of 12.5 V to 23 V and supports an operating junction temperature range of 0 °C to 125 °C for the AC grade. Key electrical characteristics include a typical quiescent current of 6 mA at 25 °C, a dropout voltage of 1.7 V, and a supply voltage rejection ratio of 45 dB at 120 Hz.
Feature Summary
- Integrates internal thermal overload protection and short-circuit limiting for robust operation under fault conditions.
- Functions as a direct replacement for Zener diode and resistor combinations while offering lower noise and reduced quiescent current.
- Requires no external components for basic fixed-voltage regulation applications.
Applications
- Local or on-card voltage regulation to eliminate distribution problems associated with single-point regulation.
- Serving as a low-noise power source for sensitive analog circuits.
- Power pass element integration to construct high-current voltage regulators.
Procurement Notes
Verify that the specific order suffix matches the required tolerance grade and packaging configuration. Confirm the component meets the necessary environmental compliance standards for the intended deployment environment. Ensure the selected variant aligns with the design's thermal management requirements and input voltage constraints.
Selection Notes
Select this component when a fixed 10 V output is required with moderate current demands up to 100 mA. Consider the SOT-89 package for space-constrained surface-mount designs. Evaluate the thermal resistance characteristics against the expected ambient temperature and load conditions to ensure reliable operation within the specified junction temperature limits.
Part Context
This part belongs to the L78Lxx family of three-terminal positive regulators manufactured by STMicroelectronics. The series is designed for general-purpose linear regulation tasks where simplicity and reliability are prioritized. The 'AC' designation indicates a specific accuracy grade and operational temperature range compared to other variants in the lineup.
FAQ
What is the maximum input voltage allowed for the L78L10ACUTR?
The absolute maximum DC input voltage rating for the L78L10ACUTR is 35 V.
Does the L78L10ACUTR require external capacitors for stability?
No external components are strictly required for basic operation, though standard application notes typically recommend input and output capacitors for optimal performance.
