PL2576-XXXF5 Datasheet, PDF (7/10 Pages) Cystech Electonics Corp. – Simple Switcher 3A Step- Down Voltage Regulator

Spec. No. : C543F5
CYStech Electronics Corp. Issued Date : 2004.02.27
Revised Date :
Page No. : 7/10
Switch Saturation Voltage
1.6
1.4
-55℃
1.2
1
0.8
25℃
0.6
150℃
0.4
0.2
0
0 0.5 1 1.5 2 2.5 3
Switch Current (A)
Oscillator Frequency
8
6
Normalized at 25℃
4
2
0
-2
VIN = 40V
-4
-6
VIN = 12V
-8
-75 -50 -25 0 25 50 75 100 125 150
Junction Temperature (℃)
Quiescent Current vs Duty Cycle
20
17.5 _{Adjustable version only}
15 ILOAD = 0.5A
12.5
VIN=7V
10
7.5
VIN=40V
5
2.5
0
0
20
40
60
80
100
Duty Cycle (%)
PL2576-XXXF5
Efficiency
95
90
ILOAD = 3A
15V OUT
85
ILOAD = 0.2A
80
75 ^5V
ILOAD = 3A
70
65
TJ = 25℃
ILOAD = 0.2A
60
0
10
20
30
40
50
Input Voltage (V)
Minimum Operating Voltage
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
-50
Adjustable version only
VOUT ≒1.23V
ILOAD = 0.5A
-25 0 25 50 75 100 125
Junction Temperature (℃)
Feedback Voltage vs Duty Cycle
20
15
10
5
0
-5
-10
-15
-20
0
Adjustable version only
ILOAD = 0.5A
VIN=40V
VIN=7V
20
40
60
80
100
Duty Cycle (%)
CYStek Product Specification