GENERAL DESCRIPTION:

The ADM7150 is a low dropout (LDO) linear regulator thatoperates from 4.5 V to 16 V and provides up to 800 mA ofoutput current. Using an advanced proprietary architecture, itprovides high power supply rejection (>90 dB from 1 kHz to 1 MHz),ultralow output noise (<1.7 nV√Hz), and achieves excellent line andload transient response with a 10 µF ceramic output capacitor.The ADM7150 is available in 1.8 V, 2.8 V, 3.0 V, 3.3 V, 4.5 V,4.8 V, and 5.0 V fixed outputs. In addition, 16 fixed outputvoltages between 1.5 V and 5.0 V are available upon request.The ADM7150 regulator typical output noise is 1.0 µV rmsfrom 100 Hz to 100 kHz for fixed output voltage options, andthe noise spectral density is 1.7 nV/√Hz from 10 kHz to 1 MHz.The ADM7150 is available in 8-lead, 3 mm × 3 mm LFCSP and8-lead SOIC packages, making it not only a very compact solutionbut also providing excellent thermal performance for applicationsrequiring up to 800 mA of output current in a small, low profile footprint. See the ADM7151 adjustable LDO to generate additional output voltages.

FEATURES:

Input voltage range: 4.5 V to 16 V

Maximum output current: 800 mA

Low noise

1.0 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: 1.7 nV√Hz typical from 10 kHz to 1 MHz

Power supply rejection ratio (PSRR) at 400 mA load

>90 dB from 1 kHz to 100 kHz, VOUT = 5 V

>60 dB at 1 MHz, VOUT = 5 V

Dropout voltage: 0.6 V at VOUT = 5 V, 800 mA load

Initial voltage accuracy: ±1%

Voltage accuracy over line, load and temperature: ±2%

Quiescent current (IGND): 4.3 mA at no load

Low shutdown current: 0.1 µA

Stable with a 10 µF ceramic output capacitor

Fixed output voltage options: 1.8 V, 2.8 V, 3.0 V, 3.3 V, 4.5 V,

4.8 V, and 5.0 V (16 outputs between 1.5 V and 5.0 V are available)

Exposed pad 8-lead LFCSP and 8-lead SOIC packages

APPLICATIONS:

Regulated power noise sensitive applications

RF mixers, phase-locked loops (PLLs), voltage-controlled oscillators (VCOs), and PLLs with integrated VCOs

Communications and infrastructure

Cable digital-to-analog converter (DAC) drivers

Backhaul and microwave links