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ADM7154ARDZ-1.8-R7
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Product Detailed Parameters
- Description：IC REG LIN 1.8V 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)：1.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：600mA
- Current - Quiescent (Iq)：7 mA
- Current - Supply (Max)：10 mA
- PSRR：63dB (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 ADM7154ARDZ-1.8-R7 is a fixed-output linear regulator providing 1.8 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 0.9 µV rms integrated noise (100 Hz to 100 kHz) and 1.5 nV/√Hz spectral density (10 kHz to 1 MHz). Power supply rejection ratio reaches 90 dB from 200 Hz to 200 kHz. Quiescent current is 4 mA at no load, reducing to 0.2 µA in shutdown. Initial output accuracy is ±0.5%. It 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 enable pin with programmable thresholds
- Internal thermal overload and current-limit protection
Applications
- PLLs and VCOs requiring low-noise 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 (-40°C to +125°C) and SOIC/LFCSP availability as per the manufacturer's ordering guide. Ensure compatibility with ADIsimPower design tools for final validation.
Selection Notes
Select this component for designs requiring high PSRR and minimal output noise without large external capacitors. It supports stable operation with standard 10 µF ceramic output capacitors. Consider the 1.8 V fixed output option if system requirements align with standard voltage levels available in stock.
Part Context
This part belongs to the ADM7154 family of 600 mA RF linear regulators. It shares architectural similarities with the adjustable ADM7155 but offers a fixed 1.8 V output. The series targets noise-sensitive radio frequency circuits, distinguishing itself through proprietary filtering techniques that isolate the error amplifier from input ripple.
Replacement Considerations
ADM7154ACPZ-1.8-R7
FAQ
What is the minimum required capacitance for stable operation?
A minimum of 10 µF ceramic output capacitor is recommended to ensure stability and optimal transient response.
How does the BYP capacitor affect performance?
Increasing the BYP capacitor value reduces output noise below 1 kHz but increases the start-up time of the regulator.
