A 1mV output ripple µModule (micromodule) regulator has been released by Linear Technology Corporation that is designed to power data converters and high speed transceivers.
The company advises the low output ripple minimises random jitter in high speed data transceivers for superior bit error rate (BER) performance.
When powering an analogue-to- digital converter (ADC), tests showed a 13dB improvement in spurious free dynamic range (SFDR) with the LTM8028 compared to a step-down regulator.
The µModule regulator combines a 36V synchronous step-down switcher, powering a 5A linear post-regulator in a 15mm by 15mm by 4.92mm BGA package.
To minimise power dissipation and voltage drop across the linear regulator, the device automatically adjusts the output voltage of the internal synchronous regulator.
A tri-state digital interface determines the output voltage, which is adjustable from 0.8V to 1.8V in 50mV increments.
Output voltage regulation is ±1.5 percent accurate over temperature. Output noise is 40µVRMS over the 10Hz to 100kHz frequency.
The device features a user-adjustable current limit accurate within ±10 percent and adjustable switching frequency between 200kHz to 1MHz.
Linear Technology
