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ADP7183ACPZN1.2-R7
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Product Detailed Parameters
- Description：IC REG LIN -1.2V 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)：-1.2V
- 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 ADP7183ACPZN1.2-R7 is a negative-output low dropout linear regulator from Analog Devices, providing a fixed −1.2 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 performance of 4 μV rms (100 Hz to 100 kHz). The device offers high power supply rejection ratio (PSRR) of 75 dB at 10 kHz and maintains excellent line and load regulation across the full operating temperature range of −40°C to +125°C.
Feature Summary
- Ultralow output noise independent of the selected output voltage setting
- High power supply rejection ratio maintained under heavy load conditions
- Positive or negative enable logic for flexible system interfacing
- Stable operation with small ceramic capacitors for compact designs
Applications
- Powering analog-to-digital converters (ADCs)
- Supplying precision amplifiers
- Powering digital-to-analog converters (DACs)
Procurement Notes
Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the package type matches the required LFCSP-8 footprint for PCB layout compatibility. Ensure the fixed −1.2 V output aligns with the target circuit requirements before procurement.
Selection Notes
Select this component for applications requiring stable negative voltage rails with minimal noise interference. Consider the thermal resistance characteristics if operating near maximum load currents. Verify that the input voltage remains within the specified operational limits to ensure proper dropout performance.
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 adjustable options. The family shares common architectural features including ultralow noise and high PSRR capabilities.
Replacement Considerations
Direct substitutes include other ADP7183 variants with different fixed output voltages such as ADP7183ACPZN1.5-R7 or ADP7183ACPZN3.3-R7. Adjustable versions like ADP7183ACPZN-R7 can replace fixed outputs using external feedback networks.
