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ADM7155ACPZ-04-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)：3.4V
- 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-WFDFN Exposed Pad, CSP
- Supplier Device Package：8-LFCSP-WD (3x3)
- Grade：-
- Qualification：-
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Overview
The ADM7155ACPZ-04-R7 is an adjustable linear regulator from Analog Devices designed for RF applications. It operates with an input voltage range of 2.3 V to 5.5 V and delivers up to 600 mA of load current. The device provides an output voltage range of 1.2 V to 3.4 V, featuring ultralow noise performance with a typical spectral density of 1.5 nV/√Hz from 10 kHz to 1 MHz. It achieves high power supply rejection ratio (PSRR) exceeding 90 dB across a wide frequency band. The component includes precision enable functionality and low shutdown current consumption.
Feature Summary
- Ultralow noise architecture optimized for radio frequency applications
- High power supply rejection ratio over a wide frequency range
- Precision programmable enable pin for controlled startup and shutdown
- Stable operation with standard ceramic output capacitors
Applications
- Phase-locked loops (PLLs)
- Voltage-controlled oscillators (VCOs)
- Communications infrastructure systems
- Microwave links
Procurement Notes
Verify the specific suffix -04-R7 against official documentation to confirm the internal regulator voltage optimization for the intended input-output differential. Confirm package type and thermal requirements during sourcing. Check availability status as distribution may vary. Ensure compatibility with required capacitance values for stability.
Selection Notes
Select this model when input voltages are between 2.3 V and 5.5 V and output adjustment is required within the 1.2 V to 3.4 V range. Consider the specific PSRR and noise characteristics relative to the application's sensitivity. Evaluate thermal dissipation based on the voltage drop and load current. Verify that the 8-lead LFCSP or SOIC package fits the design constraints.
Part Context
This component belongs to the ADM7155 family of ultra-low noise linear regulators. It shares architectural similarities with fixed-output variants like the ADM7154 and higher-voltage models such as the ADM7151. The family targets noise-sensitive RF circuits requiring stable regulation with minimal external components.
Replacement Considerations
Direct substitutes include other ADM7155 variants with different suffixes for fixed outputs or adjusted operating ranges. Cross-family replacements like the ADM7151 offer higher input voltage tolerance but differ in package and electrical specifications.
