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Product Detailed Parameters
- Description：IC REG LINEAR 1.5V 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)：1.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1V @ 200mA (Typ)
- Current - Output：500mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：12 mA
- PSRR：82dB ~ 65dB (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 LF15ABDT-TR is a fixed-output linear low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It provides a stable 1.5V output with a maximum continuous current of 500mA. The device operates with an input voltage range up to 16V and features a typical dropout voltage of 1V at 200mA load. Key electrical parameters include a quiescent current of 1mA, maximum supply current of 12mA, and power supply rejection ratios ranging from 82dB at 120Hz to 65dB at 10kHz. It includes internal protection against overcurrent and thermal overload, operating within a temperature range of -40°C to 125°C in a DPAK surface-mount package.
Feature Summary
- Provides a fixed 1.5V regulated output suitable for low-voltage digital logic and analog circuits.
- Features very low dropout characteristics and low quiescent current for efficient battery-powered operation.
- Includes integrated thermal shutdown and overcurrent protection to ensure device reliability under fault conditions.
Applications
- Battery-powered portable electronic devices requiring efficient voltage regulation.
- Low-noise power supplies for sensitive analog or RF circuitry.
- General-purpose DC-to-DC conversion in consumer electronics.
Procurement Notes
Verify the specific suffix 'ABDT' corresponds to the DPAK-3 package and 1.5V fixed output configuration. Confirm RoHS compliance status and moisture sensitivity level (MSL 1) requirements for your assembly process. Ensure input voltage does not exceed the 16V absolute maximum rating during operation.
Selection Notes
Select this component when a precise 1.5V rail is required with moderate current demands up to 500mA. Consider the DPAK package for thermal performance and space constraints. Evaluate the 1V dropout voltage against your minimum input-output differential to ensure regulation stability across the full load and temperature range.
Part Context
This part belongs to the LFxx series of ultra-low dropout regulators from STMicroelectronics. The series offers various fixed output voltages designed for low-power applications. The LF15 variant specifically targets 1.5V systems, distinguishing itself through its combination of low static current and robust protection features within a compact surface-mount footprint.
Replacement Considerations
Direct substitutes within the same family include other LFxx variants with different fixed output voltages if the system design allows voltage adjustment. Verify pin compatibility and thermal characteristics when considering cross-brand LDO replacements.
