Overview
The ADP7118AUJZ-3.3-R7 is a CMOS, low dropout (LDO) linear regulator produced by Analog Devices Inc. This device operates from an input voltage range of 2.7V to 20V and provides up to 200mA of output current. It is designed for the regulation of high-performance analog and mixed-signal circuits, offering high power supply rejection, low noise, and excellent line and load transient response. The ADP7118AUJZ-3.3-R7 is particularly suited for applications requiring stable and low-noise voltage regulation, such as noise-sensitive circuits, communications, medical devices, and industrial instrumentation.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7V to 20V |
| Output Voltage | 3.3V (fixed) |
| Output Current | Up to 200mA |
| Dropout Voltage | 200mV (typical at IOUT = 200mA) |
| Output Noise | 11µVrms (10Hz to 100kHz) |
| Power Supply Rejection Ratio (PSRR) | 88dB at 10kHz, 68dB at 100kHz, 50dB at 1MHz (VOUT ≤ 5V, VIN = 7V) |
| Initial Accuracy | ±0.8% |
| Quiescent Current | 50µA (typical) with no load |
| Shutdown Current | 3µA (typical at EN = GND, VIN = 20V) |
| Operating Temperature Range | -40°C to +125°C |
| Package Type | 5-lead TSOT |
Key Features
- High power supply rejection ratio (PSRR) for stable output voltage.
- Low noise output of 11µVrms independent of the fixed output voltage.
- Excellent line and load transient response with a small 2.2µF ceramic output capacitor.
- Precision enable feature for controlled startup and shutdown.
- Low quiescent current of 50µA (typical) with no load.
- Typical shutdown current of 3µA at EN = GND, VIN = 20V.
- Adjustable output voltage using an external feedback divider.
Applications
- Noise-sensitive applications requiring low-noise voltage regulation.
- Communications and infrastructure systems.
- Medical and healthcare devices.
- Industrial and instrumentation systems.
- High-performance analog and mixed-signal circuits.
Q & A
- What is the input voltage range of the ADP7118AUJZ-3.3-R7?
The input voltage range is from 2.7V to 20V.
- What is the maximum output current of the ADP7118AUJZ-3.3-R7?
The maximum output current is up to 200mA.
- What is the typical dropout voltage of the ADP7118AUJZ-3.3-R7?
The typical dropout voltage is 200mV at IOUT = 200mA.
- What is the power supply rejection ratio (PSRR) of the ADP7118AUJZ-3.3-R7?
The PSRR is 88dB at 10kHz, 68dB at 100kHz, and 50dB at 1MHz (VOUT ≤ 5V, VIN = 7V).
- What is the typical output noise of the ADP7118AUJZ-3.3-R7?
The typical output noise is 11µVrms from 10Hz to 100kHz.
- What is the operating temperature range of the ADP7118AUJZ-3.3-R7?
The operating temperature range is -40°C to +125°C.
- What package type is the ADP7118AUJZ-3.3-R7 available in?
The device is available in a 5-lead TSOT package.
- Can the output voltage of the ADP7118AUJZ-3.3-R7 be adjusted?
- What are some typical applications for the ADP7118AUJZ-3.3-R7?
- What is the quiescent current of the ADP7118AUJZ-3.3-R7 with no load?
- What is the shutdown current of the ADP7118AUJZ-3.3-R7?
- What is the quiescent current of the ADP7118AUJZ-3.3-R7 with no load?
