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ADP7156ARDZ-2.8-R7
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Product Detailed Parameters
- Description：IC REG LIN 2.8V 1.2A 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)：2.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：1.2A
- Current - Quiescent (Iq)：8 mA
- Current - Supply (Max)：12 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
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Overview
The ADP7156ARDZ-2.8-R7 is a fixed-output linear regulator from Analog Devices, providing a precise 2.8 V output with a maximum load current of 1.2 A. It operates within an input voltage range of 2.3 V to 5.5 V and features ultralow noise performance, characterized by 0.9 µV rms integrated noise (100 Hz to 100 kHz) and a typical power supply rejection ratio of 80 dB from 1 kHz to 100 kHz. The device includes a precision enable pin, low shutdown current of 0.2 µA, and thermal protection. It is housed in an 8-lead SOIC package.
Feature Summary
- Ultralow noise architecture optimized for RF applications
- High power supply rejection ratio across wide frequency ranges
- Precision enable control with defined logic thresholds
- Operates stably with standard ceramic output capacitors
Applications
- Phase-locked loops (PLLs)
- Voltage controlled oscillators (VCOs)
- 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 grade (-40°C to +125°C). Ensure the ordering code matches the exact 2.8 V fixed output variant. Cross-reference the manufacturer part number with official Analog Devices documentation to avoid counterfeit components.
Selection Notes
Select this component for designs requiring high current capability alongside strict noise constraints. The 2.8 V output suits systems needing this specific rail without external adjustment. Consider the 8-lead SOIC package for through-hole or standard surface-mount assembly. Evaluate thermal dissipation requirements given the 1.2 A maximum load capacity and dropout characteristics.
Part Context
This regulator belongs to the ADP7156 family, designed for radio frequency and communication infrastructure. It shares architectural similarities with the ADP7157 and ADM7154 series but offers distinct current ratings and noise profiles. The family targets applications demanding high PSRR and minimal output ripple in compact form factors.
Replacement Considerations
The ADP7156ACPZ-2.8-R7 serves as a direct package alternative using the LFCSP format. Other family members like the ADP7157 offer adjustable outputs with similar electrical specifications.
