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ADP7158ACPZ-1.2-R7
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Product Detailed Parameters
- Description：IC REG LINEAR 1.2V 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)：1.2V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：2A
- Current - Quiescent (Iq)：8 mA
- Current - Supply (Max)：14 mA
- PSRR：70dB ~ 50dB (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：10-VFDFN Exposed Pad, CSP
- Supplier Device Package：10-LFCSP-WD (3x3)
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Overview
The ADP7158ACPZ-1.2-R7 is a linear regulator from Analog Devices operating within an input voltage range of 2.3 V to 5.5 V, delivering up to 2 A of load current. It provides a fixed output voltage of 1.2 V with an initial accuracy of ±0.6%. The device features ultralow noise, characterized by 0.9 µV rms integrated noise (100 Hz to 100 kHz) and 1.7 nV/√Hz spectral density (10 kHz to 1 MHz). Power supply rejection ratio reaches 70 dB from 1 kHz to 100 kHz. Dropout voltage is typically 200 mV at 2 A. Quiescent current is 4.0 mA at no load and 9.0 mA at full load, with shutdown current as low as 0.2 µA. It operates reliably with a 10 µF ceramic output capacitor.
Feature Summary
- Ultralow noise performance optimized for radio frequency applications
- High power supply rejection ratio across wide frequency ranges
- Precision enable pin with programmable logic thresholds
- Stable operation using 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 -1.2 designation matches the required 1.2 V output voltage. Ensure the LFCSP package type aligns with PCB layout requirements. Check manufacturer documentation for lead-free status and humidity sensitivity levels before procurement.
Selection Notes
Select this component for designs requiring high current capability alongside strict noise constraints. Evaluate thermal dissipation based on the difference between input and output voltages at maximum load. Consider the minimum 10 µF ceramic output capacitance requirement for stability. Verify that the input voltage remains above the dropout threshold during all operating conditions.
Part Context
This part belongs to the ADP7158 family of RF linear regulators designed for demanding analog circuits. It shares architectural similarities with the ADP7157 but offers higher current capacity. The device complements other Analog Devices PMIC solutions like the ADM7154 series, providing a specialized option for ultra-low noise regulation in compact surface-mount packages.
Replacement Considerations
The ADP7158ACPZ-1.2 is functionally equivalent to the ADP7158ACPZ-1.2-EVALZ evaluation board components. Direct substitutes include other ADP7158 variants with different fixed output voltages if voltage adjustment is permissible.
