凌力尔特模拟创新杂志 (January 2012)

Though power management is critical to the reliable operation of modern electronic systems, voltage regulators are perhaps the last remaining “blind spot” in today’s digitally managed systems. Few regulators have the means for direct configuration or monitoring of key power system operating parameters. As a result, power designers who want complete digital control must use a mixed bag
of sequencers, microcontrollers and voltage supervisors to program basic regulator start-up and safety functions. Digitally programmable DC/DC converters are available, most notably those with VID output voltage control designed for VRM core power supplies, but these specifically targeted converters do not directly communicate important operating parameters, such as real-time currents.
January 2012 Volume 21 Number 4



I N T H I S I S S U E

integer-N synthesizer
Dual Output DC/DC Controller
Combines Digital Power System
with integrated VCO in a
4mm × 5mm package 9



supercapacitor-based
power supply ride-through
Management with Analog Control
system 15
Loop for ±0.5% VOUT Accuracy
ultralow-EMI, Module Gregory Manlove
regulator is EN55022 class
B certified 20
Though power management is critical to the reliable operation of
UMTS base station receiver