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Product Detailed Parameters
- Description：IC REG LINEAR 12V 500MA PPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：12V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：1.5 mA
- Current - Supply (Max)：12 mA
- PSRR：69dB ~ 54dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Supplier Device Package：PPAK
- Grade：-
- Qualification：-
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Overview
The LF120CPT-TR is a positive low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It provides a fixed 12 V output with a maximum continuous current of 500 mA. The device operates within an input voltage range up to 40 V and features a typical dropout voltage of 200 mV at full load, with a maximum specified dropout of 1 V. It includes internal thermal overload and short-circuit protection. The regulator is housed in a TO-252-5 surface-mount package and is rated for operation over a junction temperature range from -40 °C to +125 °C.
Feature Summary
- Fixed 12 V output voltage with high accuracy regulation
- Low dropout voltage capability for efficient power conversion
- Integrated thermal shutdown and current limiting protection
Applications
- Battery-powered portable electronic devices
- Low-noise analog circuit power supplies
- Embedded system voltage regulation
Procurement Notes
Verify the specific suffix 'CPT' against the manufacturer's official datasheet to confirm the exact package type and tape-and-reel specifications. Ensure the ordering part number matches the required operating temperature range and packaging format before finalizing procurement orders.
Selection Notes
Select this component when a stable 12 V rail is required with moderate current demands up to 500 mA. Consider its low dropout characteristic for applications where the input voltage may approach the output level. Verify that the thermal performance in the target enclosure design supports the expected power dissipation under maximum load conditions.
Part Context
This part belongs to the LFXX series of very low-dropout regulators from STMicroelectronics. These devices are designed for applications requiring low noise and low quiescent current, making them suitable for battery-operated systems. The series offers various fixed output voltages to support diverse digital and analog logic requirements.
Replacement Considerations
Direct replacements include other LF120 variants such as LF120CDT-TR or LF120ABDT-TR, provided the package footprint and electrical characteristics align with the design constraints.
