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ADP7118AUJZ-R7
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Product Detailed Parameters
- Description：IC REG LINEAR POS ADJ TSOT-23-5
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：19.58V
- Voltage Dropout (Max)：0.42V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：140 µA
- Current - Supply (Max)：320 µA
- PSRR：88dB ~ 50dB (10kHz ~ 1MHz)
- Control Features：Enable, Soft Start
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C (TA)
- 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 ADP7118AUJZ-R7 is a CMOS low dropout linear regulator manufactured by Analog Devices Inc. It operates from an input voltage range of 2.7 V to 20 V and provides up to 200 mA of output current. The device features a fixed 1.8 V output with an initial accuracy of ±0.8%. It delivers ultralow output noise of 11 µV rms and high power supply rejection ratios of 88 dB at 10 kHz, 68 dB at 100 kHz, and 50 dB at 1 MHz. The typical quiescent current is 50 µA with no load, dropping to 3 µA in shutdown mode. It includes precision enable functionality, thermal shutdown protection, and under-voltage lockout.
Feature Summary
- Ultralow output noise of 11 µV rms independent of the fixed output voltage for options up to 5 V
- High power supply rejection ratio reaching 88 dB at 10 kHz for stable regulation of noise-sensitive circuits
- Precision enable pin with programmable thresholds and hysteresis to prevent on/off oscillations
- Stable operation with small 2.2 µF ceramic output capacitors using X5R or X7R dielectrics
Applications
- Regulation for noise-sensitive applications such as ADC and DAC circuits
- Powering precision amplifiers and VCO VTUNE control
- Communications and infrastructure systems
- Medical and healthcare equipment
- Industrial and instrumentation devices
Procurement Notes
Verify the specific package type and output voltage suffix against the manufacturer's ordering guide before procurement. Confirm that the component meets AEC-Q100 automotive qualification requirements if intended for automotive use. Ensure the selected variant matches the required operating temperature range and electrical specifications documented in the official datasheet.
Selection Notes
Select this regulator for applications requiring high PSRR and ultralow noise from a wide input voltage range. It is suitable for portable equipment due to its low quiescent current. Consider the TSOT-23-5 package for compact designs, noting that soft start capabilities are limited compared to LFCSP or SOIC variants. Ensure adequate PCB layout for thermal management given the surface-mount package constraints.
Part Context
The ADP7118AUJZ-R7 belongs to the ADP7118 family of low noise CMOS LDO regulators. This series offers multiple fixed output voltage options ranging from 1.2 V to 5.0 V and supports adjustable outputs. The family is designed for high-performance analog and mixed-signal circuits, providing excellent line and load transient response while maintaining stability with minimal external capacitance.
Replacement Considerations
Consult the manufacturer's ordering guide for direct replacements with different output voltages or packages within the ADP7118 family. Verify compatibility regarding pin configurations and thermal characteristics when substituting with other LDO regulators.
