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ADM7155ACPZ-03-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)：2.9V
- 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-WFDFN Exposed Pad, CSP
- Supplier Device Package：8-LFCSP-WD (3x3)
- Grade：-
- Qualification：-
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Overview
The ADM7155ACPZ-03-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 3.4 V with ultralow noise characteristics, including 0.9 μV rms integrated noise (100 Hz to 100 kHz) and high power supply rejection ratio exceeding 90 dB. The device features a typical dropout voltage of 120 mV at full load, a quiescent current of 4 mA, and low shutdown current of 0.2 μA. It is housed in an 8-lead LFCSP package.
Feature Summary
- Ultralow noise performance optimized for RF applications
- High power supply rejection ratio across wide frequency ranges
- Precision enable pin with defined logic thresholds
- Stable operation with small ceramic output capacitors
Applications
- PLLs and VCOs requiring clean power regulation
- Communications infrastructure equipment
- Backhaul and microwave links
Procurement Notes
Verify the specific suffix -03 indicates the model optimized for a 3.4 V maximum input voltage environment. Confirm the R7 designation corresponds to the reel packaging format. Ensure compatibility with the 8-lead LFCSP footprint during procurement planning.
Selection Notes
Select this component when designing circuits sensitive to power supply noise, such as RF front ends. Consider the thermal resistance of the LFCSP package for heat dissipation at high load currents. Verify that the required output voltage falls within the 1.2 V to 3.4 V adjustable range supported by the external resistor divider.
Part Context
This part belongs to the ADM7155 series of ultra-low noise, high PSRR RF linear regulators. It shares architectural similarities with other models in the family but is distinguished by its specific input/output voltage optimization profile. The series targets demanding analog and RF applications requiring stable, quiet power delivery.
Replacement Considerations
Direct replacements include other ADM7155 variants with different input voltage optimizations, such as the ADM7155ACPZ-01 or ADM7155ACPZ-02, provided the system input voltage aligns with their respective specifications.
