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Product Detailed Parameters
- Description：IC REG LINEAR 8.5V 500MA PPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：8.5V
- 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：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 LF85CPT is a fixed-output linear voltage regulator from the LF series, manufactured by STMicroelectronics. It provides an 8.5 V output with a maximum current of 500 mA. The device operates within an input voltage range of 9.5 V to 16 V and features a low dropout voltage of 0.45 V. It is housed in a DPAK surface-mount package and supports an operating temperature range from -40 °C to +125 °C. The component has AEC-Q100 qualification.
Feature Summary
- Very low dropout voltage capability for efficient power management
- Integrated on-off switch functionality for system control
- Low quiescent current suitable for battery-powered applications
- AEC-Q100 automotive grade qualification
Applications
- Battery powered systems requiring low noise
- Low power applications needing high efficiency
- Automotive electronics due to AEC-Q100 qualification
Procurement Notes
Verify the specific suffix 'P' against official documentation to confirm package type and tape/reel specifications. Confirm end-of-life status as distributor data may vary. Ensure compatibility with required thermal dissipation for the DPAK package under intended load conditions.
Selection Notes
Select this component when a fixed 8.5 V output is required with moderate current capacity. The low dropout characteristic makes it suitable for inputs close to the output voltage. Verify that the 500 mA output current meets the load requirements and that the DPAK package fits the PCB layout constraints.
Part Context
This part belongs to the LFXX family of very low drop regulators available in various output voltages. The family is designed for low-noise, low-power applications, particularly in battery-operated systems where minimizing voltage loss and static current consumption is critical for extending operational life.
Replacement Considerations
Check for LF85CDT-TRY as a potential alternative within the same series. Verify pinout compatibility and electrical parameter alignment before substitution.
