LT3045IDD-1#PBF

LT®3045-1 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, this can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB. It incorporates a VIOC tracking function to control an upstream switching converter to maintain a constant voltage across this and hence minimize power dissipation. Its 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. Typical applications are 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.

• It is stable with a minimum 10µF ceramic output capacitor
• Single capacitor improves noise and PSRR, 100µA SET pin current is ±1% initial accuracy
• VIOC pin controls upstream regulator to minimize power dissipation
• Single resistor programs output voltage, programmable current limit
• Programmable power good, fast start-up capability, precision enable/UVLO
• Parallelable for lower noise and higher current, internal current limit with foldback
• Reverse-battery and reverse-current protection, thermal limit with hysteresis
• Input voltage range from 2 to 20V (TA=25°C), output voltage range from 0 to 15V (VIN<gt/>VOUT, TA=25°C)
• 12-lead plastic DFN package
• Temperature rating range from -40°C to 125°C

附註

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party