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ADP7105ACPZ-R2
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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 500MA 8LFCSP
- 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)：20V
- Voltage - Output (Min/Fixed)：1.22V
- Voltage - Output (Max)：19V
- Voltage Dropout (Max)：0.55V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：900 µA
- Current - Supply (Max)：1.6 mA
- PSRR：80dB ~ 50dB (10kHz ~ 100kHz)
- Control Features：Enable, Power Good, Under Voltage Lockout
- Protection Features：Over Current, Over Temperature, Reverse Polarity
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad, CSP
- Supplier Device Package：8-LFCSP-WD (3x3)
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Overview
The ADP7105ACPZ-R2 is a CMOS low dropout linear regulator manufactured by Analog Devices Inc. It operates from an input voltage range of 3.3 V to 20 V and provides up to 500 mA of output current. The device features low noise performance, delivering 15 µV rms for fixed output versions, and achieves a power supply rejection ratio of 60 dB at 10 kHz with a 3.3 V output. It includes reverse current protection, a low dropout voltage of 350 mV at full load, and initial accuracy of ±0.8%. The regulator supports programmable soft start, foldback current limiting, thermal overload protection, and user-programmable precision UVLO/enable functions.
Feature Summary
- Provides low noise regulation suitable for sensitive analog circuits
- Includes reverse current protection and thermal overload safeguards
- Features programmable soft start for inrush current control
- Offers user-programmable precision undervoltage lockout
Applications
- Regulation of ADC and DAC circuits
- Precision amplifier power supplies
- High frequency oscillator and clock regulation
- PLL power management
- Communications and infrastructure systems
Procurement Notes
Verify the specific suffix R2 against official documentation to confirm package type and tape/reel specifications. Confirm availability status as distribution channels may vary. Ensure compatibility with required PCB layout guidelines for thermal performance and stability.
Selection Notes
Select this component for applications requiring high input voltage support up to 20 V with low noise requirements. Consider the 8-lead LFCSP or SOIC packages based on space constraints. Verify that the minimum output capacitance requirement of 0.7 µF is met using X7R or X5R capacitors for stable operation across the temperature range.
Part Context
The ADP7105 is part of Analog Devices' portfolio of high-performance low dropout regulators designed for mixed-signal circuits. It utilizes an advanced proprietary architecture to achieve excellent line and load transient response while maintaining low quiescent current. The device is intended for use in environments demanding precise voltage regulation and noise immunity.
Replacement Considerations
Consult official substitution guides for verified alternatives. Ensure any replacement matches the input voltage range, output current capability, and package dimensions.
