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ADP7183ACPZN0.5-R7
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Product Detailed Parameters
- Description：IC REG LIN -0.5V 300MA 8-LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-5.5V
- Voltage - Output (Min/Fixed)：-0.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.22V @ 300mA
- Current - Output：300mA
- Current - Quiescent (Iq)：900 µA
- Current - Supply (Max)：7 mA
- PSRR：85dB ~ 40dB (1kHz ~ 1MHz)
- Control Features：Enable
- Protection Features：Current Limit, Thermal Overload
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-UFDFN Exposed Pad, CSP
- Supplier Device Package：8-LFCSP (2x2)
- Grade：-
- Qualification：-
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Overview
The ADP7183ACPZN0.5-R7 is a negative-output low dropout linear regulator from Analog Devices, providing a fixed -0.5 V output with up to -300 mA current capability. It operates within an input voltage range of -2.0 V to -5.5 V and features ultralow noise of 4 μV rms (100 Hz to 100 kHz). The device offers high power supply rejection ratio (PSRR) reaching 75 dB at 10 kHz and maintains excellent line and load transient response using small 4.7 μF ceramic capacitors. Packaged in an 8-lead LFCSP, it includes current-limit and thermal overload protection.
Feature Summary
- Ultralow output noise performance independent of the output voltage setting
- High power supply rejection ratio across a wide frequency spectrum
- Positive or negative enable logic for flexible system interfacing
- Stable operation with minimal external ceramic capacitance
Applications
- Powering analog-to-digital converters (ADCs)
- Supplying precision amplifiers
- Regulating digital-to-analog converters (DACs)
Procurement Notes
Verify the specific suffix R7 indicates reel packaging when ordering. Confirm the -0.5 V fixed output variant matches the design requirement. Check lead times as availability may vary by region. Ensure the 8-lead LFCSP footprint aligns with the PCB layout. Validate RoHS compliance status prior to final procurement.
Selection Notes
Select this component for applications requiring precise negative voltage regulation with minimal noise interference. The fixed -0.5 V output eliminates the need for external feedback resistors, simplifying the design. Consider the low dropout characteristic for efficient operation near the minimum input voltage threshold. Evaluate thermal dissipation requirements based on the load current and ambient temperature conditions.
Part Context
This part belongs to the ADP7183 family of low dropout regulators designed for high-performance analog circuits. The series provides various fixed output voltages ranging from -0.5 V to -4.5 V, alongside an adjustable version. All variants share the same compact 8-lead LFCSP package and core architecture optimized for ultralow noise and high PSRR in space-constrained designs.
Replacement Considerations
Direct substitutes include other ADP7183 variants with different fixed output voltages such as ADP7183ACPZN1.5-R7 or ADP7183ACPZN3.3-R7 if the voltage level can be adjusted. The ADP7185 series offers similar performance but with higher current capacity.
