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ADPL42005ARDZ-2.5-R7
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Product Detailed Parameters
- Description：500MA HV LDO 2.5V
- 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-2.5-R7 is a high-voltage low-dropout linear regulator from Analog Devices, featuring a fixed 2.5V output and a maximum continuous current of 500mA. It operates within an input voltage range of 4V to 20V and delivers a typical dropout voltage of 400mV at full load. The device provides exceptional noise performance with an output noise of 32µVrms and maintains a power supply rejection ratio of 58dB at 10kHz. Initial accuracy is specified at ±0.8%, with extended temperature precision ranging from -2% to +1%. Quiescent current is 900µA, while shutdown current remains below 40µA.
Feature Summary
- Ultra-low output noise of 32µVrms for sensitive analog circuits
- High power supply rejection ratio of 58dB at 10kHz
- Integrated reverse current protection and foldback current limiting
- User-programmable precise under-voltage lockout and enable functionality
Applications
- Analog-to-digital and digital-to-analog converter power supplies
- Precision amplifier biasing
- High-frequency oscillators and clock circuits
- Communication infrastructure systems
- Medical and healthcare equipment
Procurement Notes
Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the ARDZ designation corresponds to the automotive-grade temperature range and SOIC-EP package variant. Ensure compatibility with moisture sensitivity levels if storage conditions are critical. Cross-reference the exact part number against manufacturer documentation to confirm availability status and lead times.
Selection Notes
Select this component for applications requiring stable regulation from high input voltages down to low output levels. The 2.5V fixed output suits reference circuits and sensor interfaces. Consider the 500mA capability for moderate load requirements. Evaluate the low quiescent current for battery-operated designs. Verify thermal dissipation capabilities based on the expected ambient temperature and PCB copper area.
Part Context
This part belongs to the ADPL42005 family of high-voltage LDO regulators. The series offers multiple fixed voltage options including 1.5V, 1.8V, 3.0V, 3.3V, and 5.0V, alongside a programmable version. All variants share common features such as low noise, high PSRR, and robust protection mechanisms. The family is designed for mixed-signal environments requiring clean power rails.
Replacement Considerations
Direct substitutes include other ADPL42005 variants with different fixed output voltages, such as ADPL42005ARDZ-3.3-R7 or ADPL42005ARDZ-1.8-R7, provided the system voltage requirement changes. Adjustable versions like ADPL42005ARDZ-ADJ-R7 can replace this unit if external feedback networks are implemented.
