Datasheet
XL2011
5V/2.1A 150KHz 45V Buck DC to DC Converter For USB Interface
XL2011 Electrical Characteristics
Ta = 25℃;unless otherwise specified.
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
System parameters test circuit figure4
Feedback
Voltage
Vin = 8V to 45V, Vout=5V
VFB
4.9
-
5
5.1
-
V
Iload=0.5A to 2.1A
Vin=12V ,Vout=5V
Iout=2.1A
Efficiency
90
%
ŋ
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 47uF/50V capacitor; Iout=500mA, Ta =
25℃; the others floating unless otherwise specified.
Parameters
Symbol
Vin
Test Condition
Min. Typ. Max.
Unit
V
Input operation voltage
Quiescent Supply Current
8
45
10
5
Iq
VFB =Vin
4.7
mA
Output Short Supply Current
Oscillator Frequency
Iosp
Fosc
IL
mA
KHz
A
128
150
2.3
173
Switch Current Limit
VFB =0
VFB=0V, Vin=12V,
ISW=2A
Output Power PMOS
Rdson
60
80
mohm
Rev 1.0
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