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ADP7142AUJZ-3.3-R7
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Product Detailed Parameters
- Description：IC REG LIN 3.3V 200MA TSOT-23-5
- 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)：40V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.42V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：140 µA
- Current - Supply (Max)：320 µA
- PSRR：-
- Control Features：Enable
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：SOT-23-5 Thin, TSOT-23-5
- Supplier Device Package：TSOT-23-5
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Overview
The ADP7142AUJZ-3.3-R7 is a low dropout linear regulator manufactured by Analog Devices Inc. It operates from an input voltage range of 2.7 V to 40 V and provides up to 200 mA of output current. The device features a fixed 3.3 V output with an initial accuracy of ±0.8%. It delivers ultralow noise of 11 µV rms and high power supply rejection ratios, reaching 88 dB at 10 kHz. Quiescent current is typically 50 µA with no load, dropping to 1.8 µA in shutdown mode. The component is housed in a compact 5-lead TSOT package.
Feature Summary
- Ultralow output noise of 11 µV rms independent of the fixed output voltage
- High power supply rejection ratio of 88 dB at 10 kHz for effective noise filtering
- Precision enable pin with programmable thresholds and hysteresis for reliable control
- Stable operation with small 2.2 µF ceramic output capacitors
Applications
- Regulation for noise-sensitive applications
- Powering ADC and DAC circuits
- Supplying precision amplifiers
- Providing power for VCO VTUNE control
- Automotive electronics
Procurement Notes
Verify the specific package type and output voltage configuration against official datasheets before procurement. Confirm that the ordering suffix matches the required thermal and electrical specifications. Ensure compatibility with the intended PCB layout and capacitor requirements to maintain stability. Cross-reference the manufacturer's part number to avoid counterfeit components.
Selection Notes
Select this regulator for applications requiring high input voltages up to 40 V with low noise performance. Consider the 5-lead TSOT package for space-constrained designs. Evaluate the quiescent current consumption against battery life requirements. Verify that the minimum capacitance and ESR requirements are met by the selected output capacitors to ensure loop stability.
Part Context
This component belongs to the ADP7142 family of CMOS LDO linear regulators. The series offers various fixed output voltage options ranging from 1.2 V to 5.0 V. Other packages in the family include 6-lead LFCSP and 8-lead SOIC, which support user-programmable soft start features not available in the TSOT variant.
Replacement Considerations
Consult the manufacturer's documentation for officially confirmed substitute part numbers. Ensure any replacement maintains the same input voltage range, output current capability, and package dimensions.
