Analog Devices LT3073
The LT3073 is ideal for powering high-performance FPGAs, data converters, RF, and noise-sensitive signal chain applications. The output voltage is digitally selectable in 50mV increments from 0.5V to 1.2V, 100mV increments from 1.2V to 1.8V, and discrete levels at 2V, 2.5V, 3V, 3.3V, and 4.2V. The LT3073’s unity-gain operation provides virtually constant output noise, PSRR, bandwidth, and load regulation independent of the programmed output voltage.| Part No. | LT3073 |
|---|---|
| Datasheet | LT3073 Download |
| Manufacturer |  Analog Devices |
| Description | 45mV Dropout Ultra-Fast Linear Regulator |
| Buy | Stock & Price |
FEATURES
● Ultra-low RMS Noise: 1.2μVRMS (10Hz to 100kHz)● Ultra-low Spot Noise: 3nV/√ at 10kHz
● Ultra-low1/fNoise:7µVP-P from0.1Hz to 10Hz
● High-Frequency PSRR: 52dB at 1MHz
● Ultra-fast Transient Response
● Dropout Voltage: 45mV Typical
● Digitally Programmable VOUT: 0.5V to 4.2V
● Output Tolerance: ±1.5% Over Line, Load, and Temperature
● Precision Current Monitor: ±3% accuracy at 3A
● Programmable Current Limit: ±3% at 3A
● Input Range: 0.6V to 5.5V
● Digital Output Margining: ±2.5%
● Stable with Ceramic Output Capacitors (10μF Minimum)
● Parallel Multiple Devices for Higher Current
● VIOC Pin to Control Upstream Switching Converter
● Precision Enable/Under Voltage Lock Out (UVLO)
● Power Good (PG) Flag
● Temperature Monitor
● 22-Lead (3mm x 4mm) LQFN Package
APPLICATIONS
● RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs● High Speed/High Precision Data Converters
● Low Noise Instrumentation
● Post-Regulator for Switching Supplies
● FPGA and DSP Power Supplies
● Medical Applica...
