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Product Detailed Parameters
- Description：IC REG LINEAR 3V 100MA TO92-3
- Series：-
- Mfr：STMicroelectronics
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：18V
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.5V @ 100mA
- Current - Output：100mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：3 mA
- PSRR：81dB ~ 60db (120Hz ~ 10kHz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- 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 LE30CZ is a very low drop voltage regulator with an inhibit function, manufactured by STMicroelectronics. It belongs to the LE00 series of linear regulators, designed for applications requiring efficient power management with minimal voltage loss. The device is available in SO-8 and TO-92 packages, offering a wide range of output voltages to suit various embedded system needs. Key electrical characteristics include a maximum supply current of 3 mA and a power supply rejection ratio (PSRR) ranging from 81 dB at 120 Hz to 60 dB at 10 kHz. It operates within a temperature range of -40°C and includes protection features such as over-current and over-temperature shutdown.
Feature Summary
- Very low dropout performance for efficient voltage regulation
- Integrated inhibit control for power management flexibility
- Built-in over-current and over-temperature protection mechanisms
Applications
- Battery-powered portable devices requiring low quiescent current
- Embedded systems needing regulated power supplies with shutdown capability
- Industrial control units operating in varying temperature environments
Procurement Notes
Verify the specific package type (SO-8 or TO-92) and output voltage variant required for your design, as the LE00 series offers multiple configurations. Ensure compatibility with your system's thermal requirements given the over-temperature protection limits. Confirm that the inhibit pin logic aligns with your microcontroller or control interface signals before finalizing component selection.
Selection Notes
Choose the LE30CZ when a linear regulator with low dropout voltage and an enable/inhibit feature is necessary. Consider its 3 mA supply current and PSRR specifications against your noise sensitivity requirements. Evaluate the available output voltage options within the LE00 family to match your target rail precisely without excessive heat dissipation.
Part Context
The LE30CZ is part of STMicroelectronics' LE00 series of very low drop voltage regulators. This series provides reliable linear regulation solutions in compact packages like SO-8 and TO-92. These regulators are designed to offer stable output voltages with minimal input-output differential, making them suitable for space-constrained and energy-efficient electronic designs across consumer and industrial sectors.
Replacement Considerations
Check for other members of the LE00 series with compatible output voltages and package styles. Verify that any substitute maintains similar PSRR, current limits, and thermal protection characteristics to ensure circuit stability.
