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Product Detailed Parameters
- Description：IC REG LINEAR 8.5V 500MA DPAK
- 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：-
- 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 LF85CDT is a fixed-output linear voltage regulator from the STMicroelectronics LF series, housed in a DPAK surface-mount package. It provides a fixed output voltage of 8.5 V with a maximum output current of 500 mA. The device operates within an input voltage range of 9.5 V to 16 V and features a typical dropout voltage of 0.7 V at full load. It includes internal protection against overcurrent and thermal overload, ensuring reliability across an operating temperature range of -40°C to +125°C.
Feature Summary
- Fixed 8.5 V output configuration for stable power supply applications
- Integrated overcurrent and thermal shutdown protection mechanisms
- AEC-Q100 qualified for automotive-grade reliability standards
Applications
- Automotive electronic systems requiring regulated power
- Industrial control circuits needing stable low-dropout regulation
- General-purpose power management in embedded devices
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm package integrity and pin alignment upon receipt. Check for RoHS compliance documentation as required by regional regulations. Ensure storage conditions meet moisture sensitivity level specifications to prevent damage before soldering.
Selection Notes
Select this component when a fixed 8.5 V output is required with moderate current capability up to 500 mA. Consider the DPAK package for surface-mount assembly constraints. Evaluate thermal performance based on expected ambient temperatures and heat dissipation requirements within the target enclosure design.
Part Context
Part of the LFxx family of linear regulators designed for robust performance in demanding environments. The LF85CDT specifically targets applications requiring high reliability and automotive qualification. It complements other PMIC solutions by providing simple, cost-effective voltage regulation without complex external components.
Replacement Considerations
Check for equivalent fixed-voltage LDOs with similar output characteristics and package compatibility. Verify that any substitute meets AEC-Q100 requirements if used in automotive contexts. Ensure thermal resistance and current handling capabilities match or exceed original specifications.
