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ADP7118AUJZ-4.5-R7
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Product Detailed Parameters
- Description：IC REG LIN 4.5V 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)：20V
- Voltage - Output (Min/Fixed)：4.5V
- Voltage - Output (Max)：-
- 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-4.5-R7 is a CMOS low dropout linear regulator manufactured by Analog Devices Inc., providing a fixed 4.5 V output with up to 200 mA of current capability. It operates from an input voltage range of 2.7 V to 20 V and features ultralow output noise of 11 μV rms. The device includes precision enable functionality, programmable soft start in select packages, and protection against overcurrent and thermal overload.
Feature Summary
- Ultralow output noise of 11 μV rms independent of the fixed output voltage setting
- High power supply rejection ratio reaching 88 dB at 10 kHz for improved signal integrity
- Precision enable pin with user-programmable thresholds and hysteresis for controlled startup
- Stable operation with small 2.2 µF ceramic output capacitors
Applications
- Noise-sensitive analog and mixed-signal circuit regulation
- Powering ADC and DAC circuits requiring clean voltage rails
- Precision amplifier biasing and VCO VTUNE control
- Medical and healthcare instrumentation systems
Procurement Notes
Verify the specific package type and suffix against official documentation before procurement. Confirm availability status as distribution channels may vary. Ensure the ordering code matches the required fixed output voltage and thermal package options. Cross-reference datasheet revision H specifications for accurate performance parameters.
Selection Notes
Select this component for applications requiring high PSRR and minimal output noise within a compact footprint. Evaluate thermal resistance requirements based on the TSOT-23-5 package constraints. Consider the minimum 2.2 µF ceramic capacitor requirement for stability. Verify that the input voltage range accommodates the system's maximum supply variations.
Part Context
This part belongs to the ADP7118 family of high-voltage, low-noise LDO regulators designed for portable and industrial equipment. The series offers multiple fixed output voltages and adjustable configurations. It supports automotive qualification standards and integrates advanced proprietary architecture for superior transient response.
Replacement Considerations
Direct substitutes include other ADP7118 variants with different fixed output voltages or packages, such as ADP7118AUJZ-3.3-R7 or ADP7118ARDZ. Verify pin compatibility and thermal performance when substituting between TSOT-23-5 and LFCSP packages.
