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Eutech Microelectronics

EUP3472 Datasheet Preview

EUP3472 Datasheet

500kHz Synchronous Step-Down Converter

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EUP3472
2A, 28V, 500kHz Synchronous
Step-Down Converter
DESCRIPTION
The EUP3472 is a 500KHz fixed frequency
synchronous current mode buck regulator. The device
integrates both 150mhigh-side switch and 100m
low-side switch that provide 2A of continuous load
current over a wide operating input voltage of 4.5V to
28V.The internal synchronous power switch increases
efficiency and eliminates the need for an external
Schottky diode. Current mode control provides fast
transient response and cycle-by-cycle current limit.
The EUP3472 features short circuit and thermal
protection circuits to increase system reliability.
Externally programmable soft-start allows for proper
power on sequencing with respect to other power
supllies and avoids input inrush current during startup.
In shutdown mode, the supply current drops below
1μA. The EUP3472 is available in SOP-8 package.
FEATURES
z 2A Continuous Output Current
z 110ns Minimum On Time
z Integrated 150mHigh Side Switch
z Integrated 100mLow Side Switch
z Wide 4.5V to 28V Operating Input Range
z Output Adjustable from 0.8V to 24V
z Up to 95% Efficiency
z Programmable Soft-Start
z <1μA Shutdown Current
z Available in 500KHz Fixed Switching
Frequency
z Thermal Shutdown and Over Current Protection
z Input Under Voltage Lockout
z Available in SOP-8 Package
z RoHS Compliant and 100% Lead (Pb)-Free
Halogen-Free
Typical Application Circuit
APPLICATIONS
z Distributed Power Systems
z Networking Systems
z FPGA, DSP, ASIC Power Supplies
DS3472 Ver 1.0 Jul. 2010
Figure 1.
1




Eutech Microelectronics

EUP3472 Datasheet Preview

EUP3472 Datasheet

500kHz Synchronous Step-Down Converter

No Preview Available !

Typical Application Circuit (continued)
EUP3472
Figure 2. EUP3472 Typical Application Circuit with Electrolytic Capacitors
Block Diagram
Figure 3. EUP3472 Functional Block Diagram
DS3472 Ver 1.0 Jul. 2010
2


Part Number EUP3472
Description 500kHz Synchronous Step-Down Converter
Maker Eutech Microelectronics
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EUP3472 Datasheet PDF






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