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ADM7155ARDZ-03-R7
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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 600MA 8-SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：2.9V
- Voltage Dropout (Max)：0.21V @ 600mA
- Current - Output：600mA
- Current - Quiescent (Iq)：7 mA
- Current - Supply (Max)：10 mA
- PSRR：94dB ~ 57dB (1kHz ~ 1MHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- 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
- Grade：-
- Qualification：-
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Overview
The ADM7155ARDZ-03-R7 is an adjustable linear regulator from Analog Devices, operating within a 2.3 V to 5.5 V input voltage range and delivering up to 600 mA of load current. It provides an output voltage range of 1.2 V to 3.4 V with ultralow noise characteristics, including 0.9 μV rms integrated noise from 100 Hz to 100 kHz and 1.5 nV/√Hz spectral density from 10 kHz to 1 MHz. The device features high power supply rejection ratio (PSRR) exceeding 90 dB from 200 Hz to 200 kHz at 3.4 V input. It operates with a typical dropout voltage of 120 mV at full load and maintains a quiescent current of 4 mA. The component is housed in an 8-lead SOIC package.
Feature Summary
- Ultralow noise performance optimized for sensitive RF applications
- High power supply rejection ratio across wide frequency ranges
- Precision enable pin for programmable shutdown control
- Stable operation with standard ceramic output capacitors
Applications
- Phase-locked loops (PLLs)
- Voltage-controlled oscillators (VCOs)
- Microwave links
- Backhaul communications infrastructure
Procurement Notes
Verify the specific suffix -R7 indicates reel packaging when sourcing. Confirm the -03 designation matches the required output voltage optimization for your input conditions. Check RoHS compliance status through official manufacturer channels before finalizing procurement specifications.
Selection Notes
Select this model when input voltages are near the maximum output level to optimize thermal dissipation. Ensure external feedback resistors remain between 1 kΩ and 200 kΩ to maintain accuracy. Verify that the PCB layout supports the exposed pad connection for adequate thermal management during high-current operation.
Part Context
This component belongs to the ADM7155 family of low-dropout regulators designed specifically for radio frequency environments. It utilizes an advanced proprietary architecture to isolate internal circuitry from input ripple. The series includes fixed and adjustable variants tailored for different input-to-output voltage headroom requirements.
Replacement Considerations
The ADM7154 series offers fixed output options within the same electrical envelope. For higher current requirements, consider the ADP7156 or ADM7151 families. Verify package compatibility and thermal resistance values when substituting.
