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EM5812 Datasheet

Step-Down Converter

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EM5812 pdf
12A 5V/12V Step-Down Converter
EM5812/A
General Description
EM5812/A is a synchronous rectified PWM
controller with a built in high-side power MOSFET
operating with 5V or 12V supply voltage. It
achieves 10A continuous output current with
excellent load and line regulation. This device
operates at 200/300kHz and provides an optimal
level of integration to reduce size and cost of the
power supply.
This part includes internal soft start, internal
compensation networks, over current protection,
under voltage protection, and shutdown function.
This part is available in SOP-8 package.
Ordering Information
Part Number
EM5812GE
EM5812AGE
Features
Package
SOP-8 EP
SOP-8 EP
Frequency
200kHz
300kHz
Applications
Notebook & Netbook
Graphic Cards & MB
Low Voltage Logic Supplies
Pin Configuration
Typical Application Circuit
Operate from 5V to 12V Voltage Supply
15mInternal Power MOSFET Switch
0.6V VREF with 1.5% Accuracy
Voltage Mode PWM Control
200/300kHz Fixed Frequency Oscillator
0% to 80% Duty Cycle
Internal Soft Start
Over Current Protection
Integrated Bootstrap Diode
Adaptive Non-Overlapping Gate Driver
Under Voltage Protection
Over Voltage Protection
2012/10/04
A.3
1
Excelliance MOS
Excelliance MOS



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