TL2575_10 Datasheet, PDF (10/29 Pages) Texas Instruments – 1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS

TL2575, TL2575HV
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
SLVS638B – MAY 2006 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
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1
0.8
V_IN = 20 V
I_LOAD = 200 mA
0.6 _{TJ = 25°C}
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-50 -25
0 25 50 75 100 125 150
T_A – Temperature – °C
Figure 3. Normalized Output Voltage
2
1.75
1.5
1.25
DV_OUT = 5%
R_IND = 0.2 W
I_LOAD = 1 A
1
0.75
0.5
I_LOAD = 200 mA
0.25
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
T_J – Junction Temperature – °C
Figure 5. Dropout Voltage
1.4
1.2
I_LOAD = 200 mA
T_J = 25°C
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
0
10
20
30
40
50
60
V_IN – Input Voltage – V
Figure 4. Line Regulation
3
2.5
2
1.5
1
0.5
0
-50 -25 0 25 50 75 100 125 150
T_J – Junction Temperature – °C
Figure 6. Current Limit
10
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