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ADP7105ARDZ-1.8
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Product Detailed Parameters
- Description：IC REG LIN 1.8V 500MA 8-SOIC-EP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：1.8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：500mA
- Current - Quiescent (Iq)：900 µA
- Current - Supply (Max)：1.6 mA
- PSRR：-
- 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-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SOIC-EP
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Overview
The ADP7105ARDZ-1.8 is a fixed-output low dropout linear regulator providing a stable 1.8 V output with a maximum current of 500 mA. It operates from an input voltage range of 3.3 V to 20 V and features low noise performance of 15 µV rms. The device includes programmable soft start, reverse current protection, and a power-good indicator. It maintains high accuracy across line, load, and temperature variations within the -40°C to +125°C operating range.
Feature Summary
- Provides low noise regulation suitable for sensitive analog circuits
- Includes programmable soft start for inrush current control
- Features reverse current protection and foldback current limiting
- Offers user-programmable precision undervoltage lockout
Applications
- Regulation of ADC and DAC circuits
- Precision amplifier power supplies
- High frequency oscillators and clocks
- PLL power regulation
Procurement Notes
Verify the specific suffix 'ARDZ' corresponds to the SOIC package and industrial temperature grade as defined in the manufacturer's ordering guide. Confirm that the fixed 1.8 V output variant matches the required system rail. Ensure compliance with RoHS directives and check for any moisture sensitivity level requirements during storage and handling.
Selection Notes
Select this component when a high input voltage up to 20 V is required alongside a fixed 1.8 V rail. It is appropriate for designs needing low quiescent current and high PSRR. Consider the thermal resistance of the SOIC package if operating near maximum load currents or ambient temperatures.
Part Context
This part belongs to the ADP7105 family of CMOS LDO regulators designed for high-performance mixed-signal applications. The series supports various fixed and adjustable output voltages, offering flexibility for different system architectures while maintaining consistent low-noise characteristics and robust protection features.
Replacement Considerations
Consult the official datasheet ordering guide for confirmed direct replacements. Verify pin compatibility and electrical specifications before substituting.
