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ADM7155ACPZ-02-R7
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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 600MA 8LFCSP
- 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)：2.4V
- Voltage Dropout (Max)：0.21V @ 600mA
- Current - Output：600mA
- Current - Quiescent (Iq)：7 mA
- Current - Supply (Max)：10 mA
- PSRR：94dB ~ 61dB (1kHz ~ 1MHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad, CSP
- Supplier Device Package：8-LFCSP-WD (3x3)
- Grade：-
- Qualification：-
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Overview
The ADM7155ACPZ-02-R7 is an adjustable linear regulator from Analog Devices, operating within a 2.3 V to 5.5 V input range and delivering up to 600 mA of load current. It provides an output voltage range of 1.2 V to 2.4 V with ultralow noise characteristics, including 0.9 μV rms integrated noise from 100 Hz to 100 kHz. The device features high power supply rejection ratio (PSRR) exceeding 90 dB from 200 Hz to 200 kHz and maintains stability with only a 10 μF ceramic output capacitor.
Feature Summary
- Ultralow noise performance optimized for sensitive RF applications
- High power supply rejection ratio across wide frequency ranges
- Precision enable pin for controlled startup and shutdown
- Stable operation using standard ceramic capacitors
Applications
- Phase-Locked Loops (PLLs)
- Voltage-Controlled Oscillators (VCOs)
- Communications infrastructure systems
- Microwave links
Procurement Notes
Verify the specific -02 suffix designation against official documentation to confirm the 1.2 V to 2.4 V output range constraint. Ensure compatibility with the required 8-lead LFCSP or SOIC package type for your PCB layout. Confirm that the component meets all environmental specifications for your intended operating temperature range before finalizing procurement.
Selection Notes
Select this model when the application requires an adjustable output strictly limited to the 1.2 V to 2.4 V range. Verify that the input voltage headroom supports the desired output level while maintaining low dropout characteristics. Consider the thermal resistance of the chosen package if continuous 600 mA loads are expected in high ambient temperatures.
Part Context
This component belongs to the ADM7155 family of ultra-low noise, high PSRR RF linear regulators. It shares architectural similarities with other models in the series but is distinguished by its specific output voltage optimization. The family targets radio frequency applications requiring clean power supplies with minimal ripple and noise interference.
Replacement Considerations
ADM7155ACPZ-03-R7
FAQ
What is the typical output noise spectral density?
The typical output noise spectral density is 1.5 nV/√Hz from 10 kHz to 1 MHz.
How does the precision enable pin function?
Driving the EN pin high turns on the regulator, while driving it low turns off the regulator. For automatic startup, the EN pin can be connected to VIN.
