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ADP7158ACPZ-2.8-R7
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Product Detailed Parameters
- Description：IC REG LINEAR 2.8V 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)：2.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：2A
- Current - Quiescent (Iq)：8 mA
- Current - Supply (Max)：14 mA
- PSRR：-
- 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：10-VFDFN Exposed Pad, CSP
- Supplier Device Package：10-LFCSP-WD (3x3)
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Overview
The ADP7158ACPZ-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 2 A. It operates within an input voltage range of 2.3 V to 5.5 V and features ultralow noise characteristics, including 0.9 µV rms integrated noise (100 Hz to 100 kHz) and 1.7 nV/√Hz spectral density (10 kHz to 1 MHz). The device achieves high power supply rejection ratios of 70 dB (1 kHz to 100 kHz) and 50 dB at 1 MHz. It maintains an initial accuracy of ±0.6% and 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 ranges
- Precision enable pin with programmable 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 package type against the datasheet before ordering, as the ADP7158 is available in both 10-lead LFCSP and 8-lead SOIC configurations. Confirm that the required output voltage matches one of the 16 standard fixed options listed in the manufacturer's ordering guide. Ensure that external component selection meets the minimum capacitance and ESR requirements specified for stable operation.
Selection Notes
Select this regulator for designs requiring high current delivery with minimal noise interference. The fixed 2.8 V output eliminates the need for external feedback resistors, simplifying the circuit layout. Consider the thermal resistance of the chosen package when designing for high ambient temperatures or heavy loads to ensure junction temperature limits are not exceeded.
Part Context
This component belongs to the ADP7158 family of high PSRR RF linear regulators. It shares architectural similarities with the ADP7157 but offers increased output current capability up to 2 A. The device is designed to complement other Analog Devices PMIC solutions for complex power management systems in communication infrastructure.
Replacement Considerations
The ADP7157 provides similar functionality but supports only 1.2 A output current. For higher voltage inputs, the ADM7150 series is suitable but operates at lower currents. Verify that any substitute part meets the specific noise and PSRR requirements of the target application.
