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EM5810A Schematic ( PDF Datasheet ) - Excelliance MOS

Teilenummer EM5810A
Beschreibung Step-Down Converter
Hersteller Excelliance MOS
Logo Excelliance MOS Logo 




Gesamt 10 Seiten
EM5810A Datasheet, Funktion
10A 5V/12V Step-Down Converter
EM5810/A
General Description
EM5810/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 peak 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/PSOP-8 package.
Ordering Information
Part Number
EM5810GE
EM5810AGE
Features
Package
SOP-8 EP
SOP-8 EP
Frequency
200kHz
300kHz
Applications
Notebook & Netbook
Graphic Cards & MB
Low Voltage Logic Supplies
Pin Configuration
LGATE
VCC
FB
EN
PSOP-8
VIN
GND
BOOT
NC
PHASE
Typical Application Circuit
Operate from 5V to 12V Voltage Supply
25mInternal 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
2012/10/4
A.7
1






EM5810A Datasheet, Funktion
Typical Operating Characteristics
Power On Waveform
VIN
VOUT
LGATE
ILx
EM5810/A
Turn On from EN
VEN
VOUT
LGATE
ILx
VIN=12VVOUT=1.5VCOUT=1000uFNo Load. VIN=12VVOUT=1.5VCOUT=1000uFNo Load.
Turn Off from EN
Load Transient Response (Turn on)
VEN
VOUT
LGATE
ILx
IOUT
VOUT
PHASE
VIN=12VVOUT=1.5VCOUT=1000uFIOUT=8A. VIN=12VVOUT=1.5VCOUT=1000uFLoad=0~9A
Load Transient Response (Turn off)
Over Current Protection
IOUT
VOUT
PHASE
PHASE
VOUT
IOUT
VIN=12VVOUT=1.5VCOUT=1000uF
Load=0~9A
VIN=12V, VOUT=1.5, COUT=1000uF.
Output Short Ground
2012/10/4
A.7
6

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