Overview
The ADP7118ARDZ-R7, produced by Analog Devices Inc., is a CMOS, low dropout (LDO) linear regulator. This device operates from an input voltage range of 2.7 V to 20 V and provides up to 200 mA 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 ADP7118 is available in various fixed output voltage options and can be adjusted using an external feedback divider, making it versatile for a wide range of applications.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 2.7 V to 20 V |
| Maximum Output Current | 200 mA |
| Output Voltage Options | 16 fixed options (e.g., 1.2 V, 1.8 V, 2.5 V, 3.3 V, 4.5 V, 5.0 V) |
| Output Noise | 11 µV rms (for fixed output voltages ≤ 5 V) |
| Power Supply Rejection Ratio (PSRR) | 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz |
| Initial Accuracy | ±0.8% |
| Package Options | 6-lead LFCSP, 5-lead TSOT, 8-lead SOIC |
| Soft Start Time | Approximately 380 µs (typical), adjustable with external capacitor |
Key Features
- Low noise: 11 µV rms independent of fixed output voltage
- High power supply rejection ratio (PSRR): 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz
- Excellent line and load transient response with a small 2.2 µF ceramic output capacitor
- User-programmable soft start with an external capacitor
- Compact package options: 6-lead LFCSP, 5-lead TSOT, and 8-lead SOIC
- Supported by ADIsimPower tool for design and simulation
Applications
- Communications and infrastructure
- Medical and healthcare devices
- Industrial and instrumentation systems
- Power for VCO VTUNE control in precision amplifiers
Q & A
- What is the input voltage range of the ADP7118?
The input voltage range of the ADP7118 is from 2.7 V to 20 V. - What is the maximum output current of the ADP7118?
The maximum output current of the ADP7118 is 200 mA. - What are the available output voltage options for the ADP7118?
The ADP7118 is available in 16 fixed output voltage options, ranging from 1.2 V to 5.0 V, and can be adjusted using an external feedback divider. - What is the output noise of the ADP7118?
The output noise of the ADP7118 is 11 µV rms for fixed output voltages ≤ 5 V. - What is the power supply rejection ratio (PSRR) of the ADP7118?
The PSRR of the ADP7118 is 88 dB at 10 kHz, 68 dB at 100 kHz, and 50 dB at 1 MHz. - What are the package options for the ADP7118?
The ADP7118 is available in 6-lead LFCSP, 5-lead TSOT, and 8-lead SOIC packages. - How can the soft start time of the ADP7118 be adjusted?
The soft start time of the ADP7118 can be adjusted using an external capacitor connected to the SS pin. - What is the typical start-up time of the ADP7118?
The typical start-up time of the ADP7118 is approximately 380 µs. - Which tool supports the design and simulation of the ADP7118?
The ADP7118 is supported by the ADIsimPower tool. - What are some common applications of the ADP7118?
The ADP7118 is commonly used in communications and infrastructure, medical and healthcare devices, industrial and instrumentation systems, and for power in VCO VTUNE control in precision amplifiers.
