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ADP7105ARDZ-3.3-R7
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Product Detailed Parameters
- Description：IC REG LIN 3.3V 500MA 8-SOIC-EP
- 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)：20V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.55V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：900 µA
- Current - Supply (Max)：1.6 mA
- PSRR：60dB ~ 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-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SOIC-EP
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Overview
The ADP7105ARDZ-3.3-R7 is a CMOS low dropout linear regulator manufactured by Analog Devices Inc., providing a fixed 3.3 V output with up to 500 mA of current capability. It operates from an input voltage range of 3.3 V to 20 V and features a typical dropout voltage of 350 mV at full load. The device incorporates reverse current protection, programmable soft start, and foldback current limiting. It includes a power-good indicator and user-programmable undervoltage lockout. The component is housed in an 8-lead SOIC package.
Feature Summary
- Provides low noise regulation suitable for sensitive analog circuits
- Includes reverse current protection to prevent backflow
- Features programmable soft start for controlled inrush current management
- Offers a digital power-good status indicator
Applications
- Regulation of ADC and DAC circuits
- Precision amplifier power supplies
- High frequency oscillators and clock generators
- PLL power rails
- Medical and healthcare equipment
Procurement Notes
Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the ARDZ designation corresponds to the industrial temperature range and SOIC package type. Ensure compatibility with required input capacitance specifications during procurement planning.
Selection Notes
Select this component for applications requiring high input voltages up to 20 V with low noise requirements. Consider the 350 mV dropout voltage at 500 mA for headroom calculations. Evaluate thermal performance based on PCB layout and ambient conditions due to the SOIC package constraints.
Part Context
This part belongs to the ADP7105 family of low noise LDO regulators. The series supports various fixed and adjustable output voltages. It utilizes an advanced proprietary architecture to achieve excellent line and load transient response while maintaining stability with small ceramic capacitors.
Replacement Considerations
Check datasheet cross-reference sections for direct pin-compatible alternatives within the Analog Devices portfolio. Verify that any substitute maintains the 20 V maximum input rating and 500 mA output current capability.
