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KEY POINTS
1. The goal is to reduce the overall impedance of
the PDN. The impedance curve is a summation
of the effects of the power source you choose,
the bulk capacitors, high-frequency capacitors,
the PCB, the IC package, and the die inside the
IC package.
2. There is a trend toward making things smaller
and faster and getting more power out of a
similar package. For instance, LDO regulators are
becoming smaller and have much higher PSRRs.
MARK OTTO
Sr Hardware Engineer,
Teradyne
A780 Conductive Polymer
Hybrid Capacitors
METCOM MPX1 Metal Composite
Power Inductors
AEC-Q200 compliance
High vibration resistance up to 30 g
High temperature capabilities:
125°C/3,000 hours
The metal composite core has high saturation
capabilities maintaining functionality with
high current transients and is characterized by
temperature-stable inductance
Operating temperature up to 155°C
The inductor construction characteristics
use rounded copper wire surrounded by a sintered magnetic metal
composite powder capable of stable inductance across temperature
and current
