ADM7155 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADM7155
Manufacturer

ADI
ChipWorker Part#

CW983393251
Description

600mA, Ultralow Noise, High PSRR, RF Linear Regulator
Documentation

Datasheet

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ADM7155 Specifications

Attribute	Attribute Value

Part Number	ADM7155
Manufacturer	ADI
ChipWorker Part#	CW983393251
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
The ADM7155 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 ADM7155 is available in four models that optimize power dissipation and PSRR performance as a function of input and output voltage.
The ADM7155 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.
**Applications**
Regulation to noise sensitive applications: PLLs, VCOs, and PLLs with integrated VCOs
Communications and infrastructure
Backhaul and microwave links
### Features and Benefits
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

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