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YB1682 Datasheet, PDF (1/9 Pages) YOBON TECHNOLOGIES,INC. – 2A 380KHz 20V PWM Buck DC/DC Converter | |||
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YB1682
2A 380KHz 20V PWM Buck DC/DC Converter
Description
The YB1682 is a 380 KHz fixed frequency
monolithic step down switch mode
regulator with a built in internal Power
MOSFET. It achieves 2A continuous output
current over a wide input supply range with
excellent load and line regulation. The
device includes a voltage reference,
oscillation circuit, error amplifier, internal
PMOS and etc. The PWM control circuit is
able to adjust the duty ratio linearly from 0
to 100%. An enable function, an over
current protection function and a short
circuit protection function are built inside.
An internal compensation block is built in to
minimize external component count. The
YB1682 serves as ideal power supply units
for portable devices.
Typical Application Circuit
Features
 2A Constant Output Current
 140m⦠RDSON Internal Power PMOSFET
Switch
 Up to 92% Efficiency
 Fixed 380KHz Frequency
 Wide 3.6V to 20V Input Voltage Range
 Output Adjustable from 1.222V to 18V
 Output Current Protection
 Built in Frequency Compensation
 Built in Thermal Shutdown Function
 Built in Current Limit Function
 SOP8 Package is Available
 The Minimum Dropout up to 0.3V
 Pb-free Package
Applications
 White LED Backlighting
 Handheld PCs and PDAs
 Mobile Phone
 DSC and DV Flash Light Application
Pin Configuration
Figure 1: Typical Application Circuit
YB1682 Rev.1.0
www.yobon.com.tw
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