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Product Detailed Parameters
- Description:IC REG LIN POS ADJ 2A 8-SOIC-EP
- 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):2.3V
- Voltage Dropout (Max):0.28V @ 2A
- Current - Output:2A
- Current - Quiescent (Iq):8 mA
- Current - Supply (Max):14 mA
- PSRR:61dB ~ 45dB (1kHz ~ 1MHz)
- Control Features:Enable
- Protection Features:Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- 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
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Overview
The ADP7159ARDZ-02-R7 is an adjustable linear regulator from Analog Devices, operating within a 2.3 V to 5.5 V input voltage range and delivering up to 2 A of load current. It features ultralow noise performance with 0.9 µV rms integrated noise (100 Hz to 100 kHz) and high power supply rejection ratio (PSRR). The device provides an output voltage range of 1.2 V to 2.3 V with initial accuracy of ±0.6%. It operates in the -40°C to +125°C temperature range, utilizes an 8-lead SOIC package, and includes precision enable functionality.
Feature Summary
- Ultralow noise architecture optimized for RF applications
- High power supply rejection ratio across wide frequency bands
- Precision enable pin with defined logic thresholds
- Stable operation with standard ceramic output capacitors
Applications
- Phase-locked loops (PLLs)
- Voltage controlled oscillators (VCOs)
- Backhaul and microwave links
Procurement Notes
Verify the specific suffix '02' against official documentation to confirm the 1.2 V to 2.3 V output voltage range. Ensure the 8-lead SOIC package matches the design requirements. Confirm that the thermal resistance values align with the PCB layout constraints for the intended application environment.
Selection Notes
Select this component when low noise and high PSRR are critical for sensitive RF circuits. The adjustable output allows flexibility within the specified voltage limits. Consider the 2 A current capability and dropout voltage characteristics relative to the input supply headroom required for stable regulation under maximum load conditions.
Part Context
This part belongs to the ADP7159 family of ultralow noise linear regulators designed for radio frequency applications. It shares architectural similarities with other models in the series but differs in output voltage optimization. The device complements fixed-output variants like the ADM7150 by providing adjustable regulation with comparable noise performance.
Replacement Considerations
ADP7159ACPZ-02-R7
FAQ
What is the typical shutdown current for the ADP7159?
The typical shutdown current is 0.2 µA when the EN pin is grounded.
How does the BYP capacitor affect noise performance?
Increasing the BYP capacitor value reduces output noise below 1 kHz at the expense of increased start-up time.
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