New-Tech Europe Digital Magazine | May 2016

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new products
66 l New-Tech Magazine
Adjustable switching frequency from
680kHz to 3.5MHz, with 1.8MHz
default
Externalclocksignalsynchronization
up to 3.5MHz
Selectable light-load efficiency
mode and 100% duty cycle LDO
mode extend battery life
Dedicated enable pin and power-
good flag simplify sequencing of
system power rails
Fault protections include input
under-voltage lockout, over-
temperature, over-current/short-
circuit with hiccup mode, over-
voltage and negative over-current
Programmable soft-start reduces
inrush current, and automatic output
discharge ensures a soft stop
Pricing and Availability
The ISL8205M power module is
available now in a 4.5mm x 7.5mm,
22-lead QFN package and is priced
at $3.79 USD in 1k quantities. An
ISL8205MEVAL1Z evaluation can
be purchased for $69 USD each. For
more information, please visit: www.
The ISL8202M power module is
available now in a 4.5mm x 7.5mm,
22-lead QFN package and is priced
at $2.79 USD in 1k quantities. An
ISL8202MEVAL1Z evaluation can
be purchased for $69 USD each. For
more information, please visit: www.
The ISL8205M and ISL8202M
complement the highly popular
dual-channel 3A/single-channel
6A ISL8203M in Intersil’s low-
voltage product line. They join a
comprehensive family of analog and
digital power modules that support
1V to 80V input voltage rails and
3A to 80A output current to satisfy
a broad range of applications. For
more information on Intersil’s power
module portfolio, please visit: www.
TI unveils industry’s
highest power density 12-V,
10-A, 10-MHz DC/DC
converter
Ultra-small SWIFT™ step-down
converter features unique topology
to achieve four times higher current
density
Texas Instruments (TI) (NASDAQ:
TXN) today introduced the
industry’s first 12-V, 10-A, 10-MHz
series-capacitor buck converter
that achieves more than 50 A/cm3
in current density, which is four
times higher than any other 12 V
power management component or
solution available today. The unique
topology of the TPS54A20 SWIFT
synchronous DC/DC converter
enables high-frequency operation
at up to 5 MHz per phase without
special magnetics or compound
semiconductors, which designers
can use for 8-V to 14-V input and
10-A output applications. By using
the step-down converter together
with TI’s WEBENCH® Power
Design tool, engineers can get
their space- and height-constrained
point-of-load (POL) telecom and
networking power-supply designs to
market faster. For more information,
samples and an evaluation module,
visit
The TPS54A20 features a unique
two-phase, series-capacitor DC/
DC buck topology that merges a
switched-capacitor circuit with a
multiphase buck converter. This
capacitive conversion technology
enables efficient, high-frequency
operation and measures as much
as seven times smaller than
conventional converters. For a
quick introduction, watch the video
“How to decrease inductor size in a
10-A DC/DC converter design” and
read the white paper, “Breakthrough
power delivery for space-
constrained applications.” Read the
application note “Introduction to the
Series Capacitor Buck Converter”
that analyzes the technology and
presents example results for a 12-V
input, 1.2-V/10-A output application
demonstrating higher peak
efficiency than a conventional buck
converter, while operating at four
times higher switching frequency.
TPS54A20 key features and
benefits
Tiny solution: Small HotRod™
quad flat no-lead (QFN) packaging
and inexpensive, tiny 2- to 5-MHz
inductors enable a 131-mm2
solution size that consumes 50
percent less area than similar 500-
kHz DC/DC converter designs.
Read the blog post, “No small
matter: How to reduce voltage
regulator size.”
Low profile: Measuring less than
2 mm in height, the reduced size,
weight and bill of materials (BOM)
allows placement of tiny 10-A
voltage regulators on the back
side of a printed circuit board