MagnaChip Introduces a Step-Down DC/DC Converter for Smartphone Power Amplifier Applications

MagnaChip Semiconductor Corporation, a Korea-based producer of analog and
mixed-signal semiconductor products, has introduced a step-down DC/DC converter
(model:MAP7153) designed to improve smartphone power amplifier performance and
efficiency. MagnaChip says that the MAP7153 optimizes power efficiency and
extends smartphone battery life by converting output voltage into bypass or
high voltage while operating in high power mode, or into low voltage while in
low power mode.

The MAP7153 boasts fast transition time, excellent line and load regulation
in a small 1.32mm x 1.27mm WLCSP package. Two switching frequencies are also
selectable in the MAP7153. A 3 MHz option provides improved efficiency while a
6 MHz option saves printed circuit board space by utilizing smaller

“Customers are demanding increased performance and power efficiency from
their smartphones,”
said H.K. Kim, EVP and General Manager of MagnaChip’s
Display and Power Solutions Divisions. “By incorporating our MAP7153 into
their designs, smartphone manufacturers can continue to provide new and
improved products that significantly enhance energy efficiency and battery
capacity in the fast growing smartphone market.”