Datasheet
XL4001
2A 150kHz 40V Buck DC/DC Converter With Constant Current Loop
XL4001 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 32V, Vout=5V
VFB
1.21 1.235 1.26
83
V
Iload=0.2A to 2A
Vin=12V ,Vout=5V
Iout=2A
Efficiency
-
-
%
ŋ
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 220uf/50V capacitor; Iout=500mA, Ta =
25℃; the others floating unless otherwise specified.
Parameters
Symbol
Vin
Test Condition
Min. Typ. Max. Unit
Input operation voltage
Shutdown Supply Current
4.5
40
V
ISTBY
VEN=5V
80
2
200
uA
VEN =0V,
VFB =Vin
Quiescent Supply Current
Iq
5
mA
Oscillator Frequency
Switch Current Limit
Fosc
IL
127
150
3
172
Khz
A
VFB =0
High (Regulator OFF)
Low (Regulator ON)
1.4
0.8
EN Pin Threshold
VEN
V
VFB=0V
ISW=2A
Output Saturation Voltage
VCE
VCS
1.1
1.4
V
V
Constant current sense
Voltage
0.140 0.155 0.170
Rev 1.2
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