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ADM7154ARDZ-1.2-R7
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Product Detailed Parameters
- Description：IC REG LIN 1.2V 600MA 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：600mA
- Current - Quiescent (Iq)：7 mA
- Current - Supply (Max)：10 mA
- PSRR：-
- 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 ADM7154ARDZ-1.2-R7 is a fixed-output linear regulator providing 1.2 V at up to 600 mA load current. It operates from an input voltage range of 2.3 V to 5.5 V with a typical dropout voltage of 120 mV at full load. The device features ultralow noise, delivering 1.6 µV rms integrated noise from 10 Hz to 100 kHz and 90 dB power supply rejection ratio (PSRR) between 200 Hz and 200 kHz. Initial output accuracy is ±0.5%, with quiescent current at 4 mA. It includes precision enable functionality, thermal shutdown protection, and is housed in an 8-lead LFCSP package.
Feature Summary
- Ultralow noise architecture optimized for RF applications
- High power supply rejection ratio across wide frequency ranges
- Precision programmable enable pin with hysteresis
- Internal current-limit and thermal overload protection
Applications
- PLLs and VCOs requiring clean power regulation
- Communications infrastructure equipment
- Backhaul and microwave links
Procurement Notes
Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the ARDZ designation corresponds to the industrial temperature range and SOIC/LFCSP availability as per the manufacturer's ordering guide. Ensure compatibility with standard surface-mount assembly processes.
Selection Notes
Select this component for designs requiring high PSRR and minimal output noise without external filtering components. Verify that the input voltage remains within the 2.3 V to 5.5 V range under all operating conditions. Consider the 10 µF minimum ceramic output capacitance requirement for stability and transient response optimization.
Part Context
This part belongs to the ADM7154 family of 600 mA RF linear regulators. It shares architectural similarities with the ADM7155 but offers fixed output voltages instead of adjustable options. The series is designed to replace older LDOs in sensitive analog and RF signal chains where noise performance is critical.
Replacement Considerations
ADM7154ACP-1.2-R7
FAQ
What is the minimum required output capacitance for stability?
A minimum of 10 µF ceramic capacitor with low ESR is required for stable operation.
How does the BYP capacitor affect start-up time?
Increasing the BYP capacitor value reduces low-frequency noise but proportionally increases the start-up time of the regulator.
