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XL2001 Schematic ( PDF Datasheet ) - Xlsemi

Teilenummer XL2001
Beschreibung 5V/1.8A 150KHz 45V Buck DC to DC Converter
Hersteller Xlsemi
Logo Xlsemi Logo 




Gesamt 9 Seiten
XL2001 Datasheet, Funktion
5V/1.8A 150KHz 45V Buck DC to DC Converter For USB Interface
Datasheet
XL2001
Features
n Wide 8V to 45V input voltage range.
n Fixed 5V output voltage.
n Maximum 1.8A output current.
n Fixed 150KHz switching frequency.
n Internal optimize power MOSFET.
n High efficiency up to 92%.
n Built in output short shutdown function.
n Excellent line and load regulation.
n Built in thermal shutdown function.
n Built in current limit function.
n Available in SOIC-8 package.
Applications
n Car Charger.
n Battery Charger.
n USB Power Supply.
General Description
The XL2001 is a 150 KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 1.8A load with high
efficiency, low ripple and excellent line and
load regulation. Requiring a minimum
number of external components, the regulator
is simple to use and include internal
frequency compensation and a
fixed-frequency oscillator.
The XL2001 built in output short protection
function. When short protection function
happens, the chip will be shutdown. An
internal compensation block is built in to
minimize external component count.
Figure1. Package Type of XL2001
Rev 1.0
www.xlsemi.com
1






XL2001 Datasheet, Funktion
5V/1.8A 150KHz 45V Buck DC to DC Converter For USB Interface
Typical System Application (VOUT=5V/1.8A)
Datasheet
XL2001
Figure5. XL2001System Parameters Test Circuit (VIN=8V~45V, VOUT=5V/1.8A)
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
Output voltage VS Output current
VIN=12V,VOUT=5V
500
1000
1500
2000
Output current(mA)
2500
Figure6. XL2001 System Output Constant Current Curve
Rev 1.0
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6

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