Overview
The ADM7154ACPZ-1.8-R7 is a high-performance linear regulator produced by Analog Devices Inc. This regulator operates within a voltage range of 2.3 V to 5.5 V and is capable of delivering up to 600 mA of load current. It features an advanced proprietary architecture that ensures high power supply rejection and ultralow noise, making it ideal for applications requiring excellent line and load transient response. The device is available in a compact 8-lead, 3 mm × 3 mm LFCSP package, enhancing thermal performance and suitability for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage | Fixed: 1.8 V |
| Output Current | Up to 600 mA |
| Noise (RMS) | 0.9 μV rms (100 Hz to 100 kHz) |
| Noise Spectral Density | 1.5 nV/√Hz (10 kHz to 1 MHz) |
| Package Type | 8-lead LFCSP (3 mm × 3 mm) |
| PSRR (Power Supply Rejection Ratio) | 63 dB @ 1 MHz |
Key Features
- High power supply rejection ratio (PSRR) of 63 dB @ 1 MHz
- Ultralow noise: 0.9 μV rms from 100 Hz to 100 kHz and 1.5 nV/√Hz from 10 kHz to 1 MHz
- Excellent line and load transient response with a 10 µF ceramic output capacitor
- Compact 8-lead LFCSP package for enhanced thermal performance and small footprint
- Enable pin for on/off control; automatic startup possible by connecting EN to VIN
- Exposed pad for improved thermal performance, electrically connected to GND
Applications
The ADM7154ACPZ-1.8-R7 is suitable for a variety of applications requiring low noise and high stability, such as:
- Portable electronics and battery-powered devices
- Medical devices and diagnostic equipment
- Aerospace and defense systems
- Industrial control systems and automation
- Communication equipment and networking devices
Q & A
- What is the input voltage range of the ADM7154ACPZ-1.8-R7?
The input voltage range is from 2.3 V to 5.5 V. - What is the maximum output current of the ADM7154ACPZ-1.8-R7?
The maximum output current is up to 600 mA. - What is the output voltage of the ADM7154ACPZ-1.8-R7?
The output voltage is fixed at 1.8 V. - What is the noise level of the ADM7154ACPZ-1.8-R7?
The noise level is 0.9 μV rms from 100 Hz to 100 kHz and 1.5 nV/√Hz from 10 kHz to 1 MHz. - What package type is the ADM7154ACPZ-1.8-R7 available in?
The device is available in an 8-lead LFCSP package (3 mm × 3 mm). - How does the enable pin function on the ADM7154ACPZ-1.8-R7?
The enable pin (EN) allows for on/off control; the regulator can be turned on by driving EN high and turned off by driving EN low. Automatic startup is possible by connecting EN to VIN. - What is the purpose of the exposed pad on the ADM7154ACPZ-1.8-R7?
The exposed pad enhances thermal performance and is electrically connected to GND inside the package. - What are some typical applications for the ADM7154ACPZ-1.8-R7?
Typical applications include portable electronics, medical devices, aerospace and defense systems, industrial control systems, and communication equipment. - How does the ADM7154ACPZ-1.8-R7 achieve high power supply rejection?
The device uses an advanced proprietary architecture to achieve high power supply rejection ratio (PSRR) of 63 dB @ 1 MHz. - What is the recommended output capacitor for the ADM7154ACPZ-1.8-R7?
A 10 µF ceramic output capacitor is recommended for excellent line and load transient response.
