Voltage regulator for noise sensitive applications

     Analog Devices introduces an ultra-low noise dual output DC/DC μModule voltage regulator that features patented innovations in chip design, layout and packaging. At the front of the LTM8080 is a high-efficiency synchronous Silent Switcher step-down type regulator, followed by two separate low-noise, low-voltage difference (LDO) regulators with operating input voltage up to 40 V.

     To further suppress switching noise, the LTM8080 package incorporates EMI shielding with noise as low as < 1 µVRMS (10 Hz to 100 kHz) with 2 nV/√Hz (10 kH) spot noise and 80 dB PSRR (100 kHz). The LTM8080 reduces the output ripple voltage by 70% compared to discrete solutions without EMI shielding, resulting in a simpler, quieter design.

     The LTM8080 is designed to power digital loads susceptible to switching regulator noise, such as data converters, RF transmitters, FPGA I/O and clocks, operational amplifiers, transceivers, and medical scanners.