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ADP7158ARDZ-1.8-R7
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Product Detailed Parameters
- Description：IC REG LINEAR 1.8V 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)：1.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：2A
- Current - Quiescent (Iq)：8 mA
- Current - Supply (Max)：14 mA
- PSRR：70dB ~ 50dB (1kHz ~ 1MHz)
- 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-1.8-R7 is a fixed-output linear regulator from Analog Devices, providing a precise 1.8 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 performance, characterized by 0.9 µV rms integrated noise (100 Hz to 100 kHz) and a typical power supply rejection ratio of 70 dB from 1 kHz to 100 kHz. The device includes precision enable functionality, thermal shutdown protection, and under-voltage lockout.
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 'A' grade designation matches required temperature and accuracy specifications. Ensure the 1.8 V fixed output variant aligns with system requirements, as other voltages exist in the series. Validate package type against PCB footprint constraints.
Selection Notes
Select this component for designs requiring high current delivery with minimal noise interference. Consider the 1.8 V fixed output eliminates external resistor networks. Evaluate thermal dissipation based on the difference between input and output voltages at full load. Verify compatibility with available ceramic capacitor ESR values for stability.
Part Context
This part belongs to the ADP7158 family of high PSRR RF linear regulators. It shares architectural similarities with the adjustable ADP7159 and lower-current ADP7156/ADP7157 models. The primary distinction is the fixed 1.8 V output configuration, which simplifies design compared to adjustable variants while maintaining identical electrical characteristics.
Replacement Considerations
Direct substitutes include the ADP7159 for adjustable output needs or the ADM7150/ADM7151 for higher input voltage applications. Cross-reference pinouts and thermal resistance values to ensure mechanical compatibility without redesigning the layout.
