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ADP7158ARDZ-1.2-R7
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Product Detailed Parameters
- Description：IC REG LINEAR 1.2V 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)：1.2V
- 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-1.2-R7 is a linear regulator from Analog Devices operating within an input voltage range of 2.3 V to 5.5 V, delivering up to 2 A of load current. It provides a fixed output voltage of 1.2 V with an initial accuracy of ±0.6%. The device features ultralow noise, characterized by 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. Dropout voltage is typically 200 mV at 2 A. Quiescent current is 4.0 mA at no load and 9.0 mA at full load, with shutdown current as low as 0.2 µA. It operates reliably with a 10 µF ceramic output capacitor.
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 standard ceramic capacitors
Applications
- Phase-locked loops (PLLs)
- Voltage controlled oscillators (VCOs)
- Backhaul and microwave links
Procurement Notes
Verify the specific ordering suffix '-R7' corresponds to the reel packaging format required for your assembly line. Confirm that the 'ARDZ' designation matches the industrial temperature grade (-40°C to +125°C) and lead-free RoHS compliance status needed for your manufacturing process. Ensure compatibility with the 8-lead SOIC package dimensions during PCB footprint design.
Selection Notes
Select this component when designing circuits requiring high current capability alongside strict noise constraints. The fixed 1.2 V output eliminates the need for external feedback resistors, simplifying the schematic. Consider the thermal resistance characteristics of the 8-lead SOIC package if operating near maximum load currents to ensure junction temperatures remain within safe limits under expected ambient conditions.
Part Context
This part belongs to the ADP7158 family of high PSRR RF linear regulators. It shares architectural similarities with the ADP7157 but offers increased current capacity. The device is designed to replace older LDO solutions in sensitive communication infrastructure where power supply noise directly impacts signal integrity and system performance.
Replacement Considerations
Direct functional substitutes include the ADP7157 series for lower current requirements or the ADM7150 series for higher input voltage applications. Verify pinout compatibility and thermal performance differences before swapping packages.
