The ADM7155ARDZ-04-R7 is an adjustable linear regulator that operates from 2.3 V to 5.5 V and provides up to 600 mA of load current. Output voltages from 1.2 V to 3.4 V are possible depending on the model. Using an advanced proprietary architecture, it provides high power supply rejection and ultralow noise, achieving excellent line and load transient response with only a 10 µF ceramic output capacitor.
The ADM7155ARDZ-04-R7 is available in four models that optimize power dissipation and PSRR performance as a function of input and output voltage.
The ADM7155ARDZ-04-R7 regulator typical output noise is 0.9 μV rms from 100 Hz to 100 kHz for fixed output voltage options and 1.5 nV/√Hz for noise spectral density from 10 kHz to 1 MHz. The ADM7155 is available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages, making it not only a very compact solution but also providing excellent thermal performance for applications requiring up to 600 mA of load current in a small, low profile footprint.
Feature
- Input voltage range: 2.3 V to 5.5 V
- Output voltage range: 1.2 V to 3.4 V
- Maximum load current: 600 mA
- Low noise
- 0.9 μV rms total integrated noise from 100 Hz to 100 kHz
- 1.6 μV rms total integrated noise from 10 Hz to 100 kHz
- Noise spectral density: 1.5 nV/√Hz from 10 kHz to 1 MHz
- PSRR: >90 dB from 200 Hz to 200 kHz; 57 dB at 1 MHz
- Dropout voltage: 120 mV typical at VOUT = 3.3 V, IOUT = 600 mA
- Initial accuracy: ±0.5%
- Accuracy over line, load, and temperature: −2.0% (minimum), +1.5% (maximum)
- Quiescent current, IGND = 4 mA at no load
- Low shutdown current: 0.2 μA
- Stable with a 10 μF ceramic output capacitor
- 8-lead LFCSP and 8-lead SOIC packages
- Precision enable
- Supported by ADIsimPower tool
Applications
- Regulation to noise sensitive applications: PLLs, VCOs, and PLLs with integrated VCOs
- Communications and infrastructure
- Backhaul and microwave links
(Picture: Pinout)
