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ADP7158ARDZ-2.5-R7
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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 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)：2.5V
- 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-2.5-R7 is a fixed-output linear regulator from Analog Devices, providing a precise 2.5 V output with a maximum load current of 2 A. It operates within an input voltage range of 2.3 V to 5.5 V and features ultralow noise characteristics, including 0.9 µV rms integrated noise (100 Hz to 100 kHz) and 1.7 nV/√Hz spectral density (10 kHz to 1 MHz). The device delivers high power supply rejection ratio (PSRR), achieving 70 dB from 1 kHz to 100 kHz. Initial accuracy is ±0.6%, expanding to ±1.5% over line, load, and temperature variations. Quiescent current is 4.0 mA at no load, rising to 9.0 mA at full load, with a typical dropout voltage of 200 mV at 2 A.
Feature Summary
- Ultralow noise architecture optimized for RF applications
- High power supply rejection ratio across wide frequency ranges
- Precision enable pin with programmable thresholds
- Stable operation with standard ceramic 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 SOIC package type required for your design. Ensure compatibility with the 10 µF minimum ceramic output capacitance specification during component selection.
Selection Notes
Select this regulator for designs requiring high current capability alongside strict noise constraints. The fixed 2.5 V output eliminates external resistor networks, simplifying PCB layout. Consider thermal dissipation requirements given the 2 A maximum output current and available SOIC or LFCSP packages.
Part Context
This component belongs to the ADP7158 family of high PSRR, RF linear regulators. It shares architectural similarities with the ADP7156 and ADP7157 but offers higher current capacity. The series targets sensitive analog circuits where power supply integrity is critical for signal fidelity.
Replacement Considerations
The ADP7159 serves as an adjustable alternative within the same family. For lower current needs, the ADM7155 provides similar noise performance at reduced capacity.
