LT3045EMSE#PBF

LT3045 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 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB. The device supplies 500mA at a typical 260mV dropout voltage. Operating quiescent current is nominally 2.2mA and drops to <lt/><lt/>1µA in shutdown. The LT3045’s wide output voltage range (0V to 15V) while maintaining unitygain 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 is stable with a minimum 10µF ceramic output capacitor.

• Ultralow RMS noise: 0.8µVRMS (10Hz to 100kHz)
• Ultralow spot noise: 2nV/√Hz at 10kHz
• Ultrahigh PSRR of 76dB at 1MHz
• Single capacitor improves noise and PSRR, single resistor programs output voltage
• 100µA SET pin current: ±1% initial accuracy
• Reverse-battery & reverse-current protection, internal current limit, thermal limit with hysteresis
• Precision enable/UVLO
• Parallelable for lower noise and higher current
• 12-lead plastic MSOP package
• Temperature range from -40°C to 125°C

Notes

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