LM2575D2T-12 ON Semiconductor, LM2575D2T-12 Datasheet - Page 21

• Manufacturer Part Number: LM2575D2T-12
• Description: EASY SWITCHERE 1.0 A STEP-DOWN VOLTAGE REGULATOR
• Manufacturer: ON Semiconductor

MOTOROLA ANALOG IC DEVICE DATA
Unregulated
DC Input
+
100 F
/50 V
C in
+V in
1
3
LM2575–Adj
Figure 33. Adjustable Power Supply with Low Ripple Voltage
Gnd
80
70
60
50
40
30
Figure 34. D 2 PAK Thermal Resistance and Maximum
0
Power Dissipation versus P.C.B. Copper Length
5
ON/OFF
Vertically
Mounted
Free Air
2
5.0
4
Feedback
Output
L, LENGTH OF COPPER (mm)
10
D1
1N5819
Minimum
Size Pad
LM2575
150 H
L1
P D(max) for T A = 50 C
R JA
15
C out
2200 F
20
L
Î Î Î Î
Î Î Î Î
Î Î Î Î
2.0 oz. Copper
25
L
R2
50 k
R1
1.1 k
30
3.5
3.0
2.5
2.0
1.5
1.0
Optional Output
Ripple Filter
20 H
100 F
L2
C1
1.2 V to 35 V @1.0 A
Regulated
Output Voltage
21