LM2574-12 Motorola Inc, LM2574-12 Datasheet - Page 5

• Manufacturer Part Number: LM2574-12
• Description: EASY SWITCHERE 0.5 A STEP-DOWN VOLTAGE REGULATOR
• Manufacturer: Motorola Inc

MOTOROLA ANALOG IC DEVICE DATA
–0.2
–0.4
–0.6
–0.8
–1.0
1.0
0.8
0.6
0.4
0.2
8.0
6.0
4.0
2.0
1.5
1.0
0.5
20
18
16
14
12
10
0
0
–50
–50
0
L = 300 H
V in = 20 V
I Load = 100 mA
Normalized at T J = 25 C
5.0
–25
–25
Figure 2. Normalized Output Voltage
Figure 6. Quiescent Current
I Load = 100 mA
10
Figure 4. Dropout Voltage
T J , JUNCTION TEMPERATURE ( C)
T J , JUNCTION TEMPERATURE ( C)
0
0
V in , INPUT VOLTAGE (V)
TYPICAL PERFORMANCE CHARACTERISTICS
15
I Load = 500 mA
I Load = 100 mA
25
25
I Load = 500 A
20
60
60
25
75
75
V out = 5.0 V
Measured at
Ground Pin
T J = 25 C
30
100
100
35
LM2574
125
125
40
–0.2
–0.4
–0.6
200
180
160
140
120
100
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
80
60
40
20
0
0
–50
–50
0
I Load = 100 mA
T J = 25 C
V ON/OFF = 5.0 V
5.0
–25
–25
Figure 7. Standby Quiescent Current
(Circuit of Figure 16)
3.3 V, 5.0 V and ADJ
10
T J , JUNCTION TEMPERATURE ( C)
Figure 3. Line Regulation
T J , JUNCTION TEMPERATURE ( C)
Figure 5. Current Limit
0
0
V in , INPUT VOLTAGE (V)
15
25
25
V in = 12 V
V in = 40 V
20
60
60
25
12 V and 15 V
75
75
30
V in = 25 V
100
100
35
5
125
125
40