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ADPL42005ARDZ-R7
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Product Detailed Parameters
- Description：500MA HV LDO
- Series：*
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：-
- Output Type：-
- Number of Regulators：-
- Voltage - Input (Max)：-
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：-
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：-
- PSRR：-
- Control Features：-
- Protection Features：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The ADPL42005ARDZ-R7 is a high-voltage, low-dropout linear regulator from Analog Devices. It delivers up to 500mA output current with an input voltage range of 4V to 20V. The device features low noise performance of 32µVrms for fixed output versions and offers a typical power supply rejection ratio (PSRR) of 58dB at 10kHz. It includes reverse current protection, foldback current limiting, and thermal overload protection. The regulator supports adjustable outputs from 1.22V to VIN minus dropout voltage.
Feature Summary
- Provides stable regulation for sensitive analog and mixed-signal circuits with low noise characteristics
- Includes comprehensive protection mechanisms such as reverse current protection and thermal overload shutdown
- Features a user-programmable precision undervoltage lockout and enable function for system sequencing
Applications
- Analog-to-digital converter and digital-to-analog converter circuit power supplies
- Precision amplifier biasing and signal conditioning stages
- High-frequency oscillators, clock generators, and phase-locked loops
- Communication infrastructure and industrial instrumentation systems
Procurement Notes
Verify the specific suffix indicates the correct fixed output voltage or adjustable variant, as the base part number covers multiple configurations. Confirm package type matches design requirements. Check manufacturer documentation for humidity sensitivity handling instructions during assembly. Ensure input voltage does not exceed maximum ratings under all operating conditions.
Selection Notes
Select this component when designing circuits requiring high input voltage tolerance up to 20V with moderate current demands. Consider the low noise specification for applications sensitive to power supply ripple. Evaluate the dropout voltage requirements against the minimum input-output differential needed for regulation. Verify that the thermal performance meets the expected ambient temperature and load conditions.
Part Context
This part belongs to the ADPL42005 series of high-voltage LDO regulators designed by Analog Devices. The series is engineered for performance in demanding environments, offering both fixed and adjustable output options. It shares architectural similarities with other members of the family but differs in specific output voltage configurations and packaging variants available within the product line.
Replacement Considerations
Direct substitutes include other ADPL42005 variants with different fixed output voltages, such as ADPL42005ARDZ-1.8-R7 or ADPL42005ARDZ-3.3-R7, if the voltage requirement changes. Cross-referencing pinouts and thermal pads is essential when considering non-Analog Devices alternatives.
