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Xlsemi

XL2001 Datasheet Preview

XL2001 Datasheet

5V/1.8A 150KHz 45V Buck DC to DC Converter

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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




Xlsemi

XL2001 Datasheet Preview

XL2001 Datasheet

5V/1.8A 150KHz 45V Buck DC to DC Converter

No Preview Available !

5V/1.8A 150KHz 45V Buck DC to DC Converter For USB Interface
Pin Configurations
Datasheet
XL2001
Figure2. Pin Configuration of XL2001 (Top View)
Table 1 Pin Description
Pin Number
1
2
3
4
5,6
7,8
Pin Name
FB
NC
VC
VIN
SW
GND
Description
Feedback Pin (FB). The feedback threshold voltage is 5V.
No Connected.
Internal Voltage Regulator Bypass Capacity. In typical system
application, The VC pin connect a 1uf capacity to VIN.
Supply Voltage Input Pin. XL2001 operates from 8V to 45V
DC voltage. Bypass Vin to GND with a suitably large
capacitor to eliminate noise on the input.
Power Switch Output Pin (SW). SW is the switch node that
supplies power to the output.
Ground Pin. Care must be taken in layout. This pin should be
placed outside of the schottky diode to output capacitor ground
path to prevent switching current spikes from inducing voltage
noise into XL2001.
Rev 1.0
www.xlsemi.com
2


Part Number XL2001
Description 5V/1.8A 150KHz 45V Buck DC to DC Converter
Maker Xlsemi
Total Page 9 Pages
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