UU28121G-AF5-R Datasheet, PDF (1/6 Pages) Unisonic Technologies – CMOS IC

UNISONIC TECHNOLOGIES CO., LTD
UU28121
1.2MHz, HIGH VOLTAGE,
BOOST CONVERTER
 DESCRIPTION
The UTC UU28121 is a current mode step up converter
intended for small, low power applications.
The converter input voltage ranging from 2.5V to 5.5V. The
Output voltage can be set up to 28V. The frequency is 1.2MHz
allows the use of small external inductors and capacitors and
provides fast transient response. Internal soft start results in small
inrush current and extends battery life. Internal power MOSFET
with very low RDS (ON) provides high efficiency. The UTC
UU28121 automatically transits from PWM to PFM during light load
condition further increasing efficiency. The converter also provides
protection functions such as under-voltage lockout, current limit
and thermal shutdown.
 FEATURES
* 2.5V~5.5V operating input voltage range
* 1.2MHz Fixed Switching Frequency
* Adjustable output voltage range up to 28V
* Internal 1.2A switching current limit
* Internal Soft-start Function
* Current limit and Thermal shutdown protection
* Under voltage Lockout
 ORDERING INFORMATION
Ordering Number
UU28121G-AF5-R
Package
SOT-25
CMOS IC
Packing
Tape Reel
 MARKING
www.unisonic.com.tw
Copyright © 2016 Unisonic Technologies Co., Ltd
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