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XL2011

Xlsemi
Part Number XL2011
Manufacturer Xlsemi
Description 5V/2.1A 150KHz 45V Buck DC to DC Converter
Published Sep 21, 2014
Detailed Description Datasheet 5V/2.1A 150KHz 45V Buck DC to DC Converter For USB Interface Features n n n n n n n n n n n Wide 8V to 45V inp...
Datasheet PDF File XL2011 PDF File

XL2011
XL2011

Overview
Datasheet 5V/2.
1A 150KHz 45V Buck DC to DC Converter For USB Interface Features n n n n n n n n n n n Wide 8V to 45V input voltage range.
Fixed 5V output voltage.
Maximum 2.
1A output current.
Fixed 150KHz switching frequency.
Internal optimize power MOSFET.
High efficiency up to 92%.
Built in output short shutdown function.
Excellent line and load regulation.
Built in thermal shutdown function.
Built in current limit function.
Available in SOIC-8 package.
XL2011 General Description The XL2011 is a 150 KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 2.
1A 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 XL2011 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.
Applications n n n Car Charger.
Battery Charger.
USB Power Supply.
Figure1.
Package Type of XL2011 Rev 1.
0 1 www.
xlsemi.
com Datasheet 5V/2.
1A 150KHz 45V Buck DC to DC Converter For USB Interface Pin Configurations XL2011 Figure2.
Pin Configuration of XL2011 (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.
XL2011 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 in...


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