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Product Detailed Parameters
- Description：IC REG LINEAR 3.5V 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)：3.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.5V @ 100mA
- Current - Output：100mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：3 mA
- PSRR：80dB ~ 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 LE35CZ is a fixed positive low-dropout (LDO) linear voltage regulator manufactured by STMicroelectronics. It provides a stable 5 V output with a typical dropout voltage of 0.2 V and a maximum of 0.5 V. The device supports an input voltage range from 5.7 V to 18 V, delivering up to 100 mA of output current. It features excellent line regulation (max 20 mV) and load regulation (max 15 mV). Designed for robust operation, it operates within a junction temperature range of -40 °C to +125 °C and includes internal current limiting and thermal shutdown protection.
Feature Summary
- Very low dropout voltage ensures efficient power delivery in battery-powered systems
- Integrated thermal shutdown and current limiting protect against overload conditions
- Requires minimal external capacitance for stability, simplifying circuit design
Applications
- Battery-powered consumer electronics requiring low quiescent current
- Low-noise analog circuits needing stable voltage references
- Industrial control systems operating in wide temperature environments
Procurement Notes
Verify the specific suffix 'Z' indicates lead-free packaging compliant with EU RoHS standards. Confirm the package type matches the required TO-92 footprint. Ensure the fixed 5 V output aligns with system requirements, as other voltage options exist within the LE35C series. Check for availability of the inhibit function if active low-power management is needed.
Selection Notes
Select this component when a fixed 5 V rail is required with minimal voltage drop under load. Consider the 100 mA current limit for moderate power applications. The TO-92 package suits through-hole designs where space allows. Evaluate thermal dissipation needs at maximum load to ensure junction temperature remains within safe limits.
Part Context
The LE35CZ belongs to the LE00 series of very low-dropout regulators from STMicroelectronics. This family offers various fixed output voltages and packages, including SO-8 and TO-92. The series is designed for low-power applications, featuring low quiescent current and high supply voltage rejection, making it suitable for noise-sensitive and energy-efficient designs.
Replacement Considerations
LE35CD: Identical electrical specifications but may differ in packaging or tape-and-reel configuration. LE35CZ-AP: Same functional characteristics; verify if the 'AP' suffix denotes specific assembly or testing variations.
