Description

The LT3045-1 is a high performance low dropout linear regulator featuring LTC?s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3045-1 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB. In addition to the LT3045 feature set, the LT3045-1 incorporates a VIOC tracking function to control an upstream switching converter to maintain a constant voltage across the LT3045-1 and hence minimize power dissipation.The device supplies 500mA at a typical 260mV dropout voltage. Operating quiescent current is nominally 2.3mA and drops to <<1?A in shutdown. The LT3045-1?s wide output voltage range (0V to 15V) while maintaining unity-gain operation provides virtually constant output noise, PSRR, bandwidth and load regulation, independent of the programmed output voltage. Additionally, the regulator features programmable current limit, fast start-up capability and programmable power good to indicate output voltage regulation.The LT3045-1 is stable with a minimum 10?F ceramic output capacitor. Built-in protection includes reverse battery protection, reverse current protection, internal current limit with foldback and thermal limit with hysteresis. The LT3045-1 is available in thermally enhanced 12-Lead MSOP and 3mm ? 3mm DFN packages. ? VIOC Function LT3045-1 Yes LT3045 No Applications RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs Very Low Noise Instrumentation High Speed/High Precision Data Converters Medical Applications: Imaging, Diagnostics Post-Regulator for Switching Supplies

Type:

Part number: DC2593A

More details from Analog Devices Inc.