Overview
The ADM7154ACPZ-2.5-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 an 8-lead, 3 mm × 3 mm LFCSP (Lead Frame Chip Scale Package) with an exposed pad, which enhances thermal performance and provides a compact, low-profile footprint.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.3 V to 5.5 V | V |
| Output Voltage | 2.5 V | V |
| Maximum Output Current | 600 mA | A |
| Output Voltage Accuracy | 0.5 % | % |
| Package Type | 8-WFDFN Exposed Pad, CSP | - |
| Number of Pins | 8 | - |
Key Features
- High power supply rejection ratio (PSRR) and ultralow noise.
- Excellent line and load transient response with a 10 µF ceramic output capacitor.
- Available in fixed output voltages with options ranging from 1.2 V to 3.3 V, and additional voltages available by special order.
- Compact 8-lead LFCSP package with an exposed pad for enhanced thermal performance.
- Enable pin for on/off control, with the option for automatic startup by connecting EN to VIN.
- Low noise reference voltage output with the option to bypass the REF pin to GND with a 1 µF capacitor.
Applications
The ADM7154ACPZ-2.5-R7 is suitable for a variety of applications that require high-performance voltage regulation, including:
- Portable electronics and battery-powered devices.
- Wireless communication systems and RF circuits.
- Medical devices and diagnostic equipment.
- Industrial control systems and automation.
- Consumer electronics and audio/video equipment.
Q & A
- What is the input voltage range of the ADM7154ACPZ-2.5-R7?
The input voltage range is from 2.3 V to 5.5 V.
- What is the maximum output current of the ADM7154ACPZ-2.5-R7?
The maximum output current is 600 mA.
- What is the output voltage accuracy of the ADM7154ACPZ-2.5-R7?
The output voltage accuracy is 0.5%.
- What package types are available for the ADM7154?
The device is available in 8-lead LFCSP and 8-lead SOIC packages with an exposed pad.
- How can I reduce noise in the ADM7154?
Noise can be reduced by connecting a 1 µF capacitor from the BYP pin to GND and bypassing the REF pin to GND with a 1 µF capacitor.
- What are the thermal considerations for the ADM7154?
The exposed pad enhances thermal performance and should be connected to the ground plane on the board to ensure proper operation.
- Can the ADM7154 be used in RF applications?
Yes, the ADM7154 is suitable for RF applications due to its high PSRR and ultralow noise characteristics.
- How do I enable or disable the regulator?
The regulator can be enabled by driving the EN pin high and disabled by driving the EN pin low. For automatic startup, connect EN to VIN.
- What are the typical applications of the ADM7154?
Typical applications include portable electronics, wireless communication systems, medical devices, industrial control systems, and consumer electronics.
- What is the noise spectral density of the ADM7154?
The noise spectral density is 1.5 nV/√Hz from 10 kHz to 1 MHz, and the typical output noise is 0.9 μV rms from 100 Hz to 100 kHz for fixed output voltage options.
