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New-Tech Magazine l 79
(PMIC) from Maxim Integrated
Products, Inc. (NASDAQ: MXIM),
designers can optimize power and
battery life for wearable medical/
fitness and Internet of Things (IoT)
applications.
Increasing battery life and achieving
low power are common challenges
faced by engineers when developing
wearable and IoT products. The
MAX14720 PMIC is ideal for non-
rechargeable battery (coin cell, dual
alkaline) applications where size
and energy efficiency are critical.
In addition, an electronic battery
seal extends shelf life by effectively
disconnecting the battery prior to
initial power-up. Integrating the
functionality of five discrete devices-
power switch, linear regulator, buck
regulator, buck-boost regulator, and
monitor-the MAX14720 reduces
the bill of materials (BOM) and
allows for much smaller form factor
designs.
“In 2020, 190 million wearable
electronic devices for fitness and
health will be sold, generating $14.4
billion in revenue¹,” according to
Gartner. Angela McIntyre, Research
Director and Michele Reitz, Principal
Research Analyst at Gartner said,
“System design for wearables
will remain fairly straightforward,
employing basic microcontroller
unit (MCU)-based processing,
BT and Wi-Fi communications,
and accelerometer and gyro
sensor chips, with display drivers,
optoelectronics, USB charging
interfaces, small NOR memory and
power regulator chips playing major
roles in many wearable designs.²”
Key Advantages
Lower power: While most battery
PMICs operate from 3V, the
MAX14720 runs from a primary cell
and operates down to 1.8V.
Extended battery life: Low quiescent
current IP is critical for wearable
applications because it can
extend the runtime of the system
significantly.
Longer product shelf life: An
electronic battery seal offers
extended storage life and allows for
a fully sealed housing.
Flexible operation and system
diagnostics: Value added features
such as push button input
monitoring, power-up sequencing,
and voltage rail monitoring further
reduce BOM cost and space.
Commentary
“Maxim has a strong position in the
rechargeable wearables market,”
said Frank Dowling, Executive
Business Manager at Maxim
Integrated. “As a result, we have
leveraged our expertise and IP for
the non-rechargeable wearables
market.”
Availability and Pricing
Available in a 25-bump, 0.4mm
pitch, 2.26mm x 2.14mm wafer-
level package (WLP).
Specified over the -40-degree
Celsius to +85-degree Celsius
temperature range.
Pricing available upon request.
¹ Gartner, Forecast: Internet of
Things - Endpoints and Associated
Services, Worldwide, 2015, 29
October 2015. This figure includes
chest straps, sports watches,
wristbands, smart garments and
other fitness monitors.
² Gartner, Forecast Overview:
Wearable Electronics Production
and Semiconductors, Worldwide,
2015, Michele Reitz, Angela
McIntyre, 26 October 2015.
AAO High Speed
Solutions Introduces the
Rugged Four Channel
10G-Base-T to XAUI
Connector Converter Product
Amphenol Aerospace, a global
leader in interconnect technologies,
now offers a new four-channel
10G-Base-T to XAUI connector
product in addition to its current set
of 10GbE products. The product
facilitates the bi-directional protocol
conversion of four channels of IEEE
802.3 XAUI through the appropriate
PHY and transformer logic to IEEE
802.3 10G-Base-T.
The product has been developed,
integrated, and delivered for the
rugged environments typically found
in Military, Aerospace, and Industrial
markets. The qualification testing
was conducted with test methods
and limits for products fielded in
aerospace applications. Most, if
not all, of the relevant IEEE 802.3
standards are supported.
The four-channel converter utilizes
Split Pair Quadrax contacts for
10G-Base-T system connections.
Split Pair Quadrax is a derivative
of standard industry Quadrax, but
has improved signal integrity to
support up to 6.5Gbps signaling.
The contact is used to enhance the
signal integrity of the 10G-Base-T