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ADP7158ARDZ-2.0-R7
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Product Detailed Parameters
- Description：IC REG LINEAR 2V 2A 8-SOIC-EP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：2V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：2A
- Current - Quiescent (Iq)：8 mA
- Current - Supply (Max)：14 mA
- PSRR：-
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SOIC-EP
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Overview
The ADP7158ARDZ-2.0-R7 is a fixed-output linear regulator providing 2.0 V at up to 2 A load current. It operates from an input voltage range of 2.3 V to 5.5 V with a typical dropout voltage of 200 mV at full load. The device features ultralow noise, delivering 0.9 µV rms integrated noise (100 Hz to 100 kHz) and 1.7 nV/√Hz spectral density (10 kHz to 1 MHz). Power supply rejection ratio reaches 70 dB from 1 kHz to 100 kHz. Initial output accuracy is ±0.6%, expanding to ±1.5% over line, load, and temperature conditions (-40°C to +125°C). Quiescent current is 4.0 mA at no load and 9.0 mA at 2 A, with shutdown current at 0.2 µA.
Feature Summary
- Ultralow noise performance optimized for RF applications
- High power supply rejection ratio across wide frequency ranges
- Precision enable pin with programmable thresholds
- Stable operation with small ceramic output capacitors
Applications
- Phase-locked loops (PLLs)
- Voltage controlled oscillators (VCOs)
- Backhaul and microwave links
Procurement Notes
Verify the specific suffix 'R7' indicates reel packaging when sourcing. Confirm the 'ARDZ' designation corresponds to the industrial temperature range and lead-free composition. Ensure the ordering code matches the fixed 2.0 V output variant. Cross-reference the manufacturer part number against official Analog Devices documentation to validate authenticity and revision status before procurement.
Selection Notes
Select this component for designs requiring high current capability combined with strict noise constraints. The fixed 2.0 V output eliminates external resistor networks, simplifying layout. Verify that the input voltage remains above the minimum operating threshold plus dropout requirements under all load conditions. Consider thermal dissipation capabilities based on the selected package type and PCB copper area.
Part Context
This device belongs to the ADP7158 family of high PSRR RF linear regulators. It shares architectural similarities with the adjustable ADP7159 and lower current ADP7156/ADP7157 variants. The family targets noise-sensitive radio frequency circuits within infrastructure and communications systems. All members utilize proprietary architecture to maintain stability with minimal external capacitance.
Replacement Considerations
The ADP7159 serves as an adjustable alternative within the same series. For higher input voltage requirements, the ADM7150 or ADM7151 families are suitable replacements. Lower current applications may utilize the ADP7156 or ADP7157 models.
