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ADP7156ACPZ-2.5-R7
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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 1.2A 10LFCSP
- 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)：2.5V
- 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：10-VFDFN Exposed Pad, CSP
- Supplier Device Package：10-LFCSP-WD (3x3)
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Overview
The ADP7156ACPZ-2.5-R7 is a fixed-output linear regulator providing 2.5 V at up to 1.2 A 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 80 dB PSRR from 1 kHz to 100 kHz. Quiescent current is 4.0 mA at no load and 7 mA at maximum output. It includes precision enable functionality, thermal shutdown, and under-voltage lockout.
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 capacitors
Applications
- Phase-locked loops (PLLs)
- Voltage controlled oscillators (VCOs)
- Backhaul and microwave links
Procurement Notes
Verify the specific suffix matches the required package type and temperature grade. Confirm the fixed output voltage aligns with system requirements. Check for automotive qualification if operating in vehicle environments. Ensure input and output capacitor selections meet minimum capacitance and ESR specifications for stability.
Selection Notes
Select this component for designs requiring high linearity and minimal noise injection into sensitive RF stages. Evaluate thermal dissipation based on the difference between input and output voltages at peak load currents. Consider the 10-lead LFCSP package for compact layouts while ensuring adequate PCB copper area for heat spreading.
Part Context
This part belongs to the ADP7156 family of low dropout regulators designed for radio frequency systems. It shares architectural similarities with the ADP7157 adjustable variant and higher current ADP7158/ADP7159 models. The family emphasizes low noise performance and robust transient response using small external capacitors.
Replacement Considerations
Direct substitutes include other fixed 2.5 V outputs within the ADP7156 series or the adjustable ADP7157 configured similarly. Higher current variants like the ADP7158 may be considered if load demands exceed 1.2 A.
