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Product Detailed Parameters
- Description：IC REG LINEAR 8V 500MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：1.5 mA
- Current - Supply (Max)：12 mA
- PSRR：72dB ~ 57dB (120Hz ~ 10kHz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：DPAK
- Grade：-
- Qualification：-
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Overview
The LF80ABDT-TR is a fixed-output linear voltage regulator from the LFXX series, manufactured by STMicroelectronics. It provides a stable 8V output with a maximum load current of 500mA. The device features a very low dropout voltage of 0.45V and includes an inhibit control feature for power management. It operates within a junction temperature range up to 125°C and is housed in a surface-mount DPAK (TO-252) package.
Feature Summary
- Very low dropout voltage capability for efficient operation near input limits
- Integrated inhibit function for precise power control and standby modes
- Low quiescent current consumption to minimize power waste
Applications
- Battery-powered portable electronic devices requiring efficient regulation
- Embedded systems needing a stable 8V supply rail
- Circuits requiring low noise and high ripple rejection performance
Procurement Notes
Verify the specific suffix 'ABDT' corresponds to the DPAK package and 8V fixed output variant. Confirm the manufacturer is STMicroelectronics to ensure compatibility with original datasheet specifications. Check for RoHS compliance status if required by your assembly process. Ensure the ordering quantity matches standard reel sizes provided by distributors.
Selection Notes
Select this component when an 8V fixed output is required with moderate current demands up to 500mA. The low dropout characteristic makes it suitable for applications where the input voltage is close to the output voltage. The inhibit pin allows for system-level power switching without disconnecting the main supply line.
Part Context
This part belongs to the LFXX family of very low drop regulators. These components are designed to replace traditional linear regulators in applications requiring higher efficiency and lower heat dissipation. The family offers various output voltages and packages to suit different design constraints.
Replacement Considerations
Direct substitutes include other LDO regulators providing 8V at 500mA with similar pinouts. Verify that replacement parts support the same inhibit functionality and thermal characteristics. Ensure the alternative package matches the DPAK footprint for board compatibility.
