Datasheet
0.3A 100KHz 80V Buck DC to DC Converter XL7045
Rev 1.1 www.xlsemi.com
5
XL7045 Electrical Characteristics
T
a
= 25℃;unless otherwise specified.
Symbol Parameter Test Condition Min. Typ. Max. Unit
System parameters test circuit figure4
VFB FB Voltage
Vin =20V to 80V, Vout=15V
Iload=0.1A to 0.2A
1.225 1.25 1.275 V
ŋ
Efficiency
Vin=36V ,Vout=15V
Iout=0.2A
- 84 - %
ŋ
Efficiency
Vin=48V ,Vout=15V
Iout=0.2A
- 81 - %
ŋ
Efficiency
Vin=60V ,Vout=15V
Iout=0.2A
- 77 - %
Electrical Characteristics (DC Parameters)
Vin = 48V, GND=0V, Vin & GND parallel connect a 33uf/100V capacitor; Iout=0.2A, T
a
=
25℃; the others floating unless otherwise specified.
Parameters Symbol Test Condition Min. Typ. Max. Unit
Input operation voltage Vin 10 80 V
VIN UVLO Vin_uvlo 8 9 V
Quiescent Supply Current I
q
V
FB
=2V 2.8 5 mA
Oscillator Frequency Fosc 75 100 125 KHz
Switch Current Limit I
L
V
FB
=0
R3=0.15Ω
0.35 A
Output Saturation Voltage V
CE
V
FB
=0V
I
out
=0.3A
0.84 V
Max. Duty Cycle D
MAX
V
FB
=0V 100 %
