TL499A

WIDE-RANGE POWER-SUPPLY CONTROLLERS

SLVS029F – JANUARY 1984 – REVISED MAY 2000

6

POST OFFICE BOX 655303

APPLICATION INFORMATION

Table 2. Maximum Output Current vs Input and Output Voltages

OUTPUT

SWITCHING REGULATOR INPUT VOLTAGE (SW REG IN2)

(V)

OUTPUT

VOLTAGE

1.1

1.2

1.3

1.5

1.7

2

2.5

3

5

6

9

(V)

OUTPUT CURRENT

(mA)

30

50

100

25

50

70

100

20

15

25

30

70

90

100

15

10

15

25

35

45

90

100

100

12

10

10

15

20

25

35

45

60

100

100

100

10

15

20

20

25

30

40

55

70

100

100

9

20

20

25

30

35

45

60

80

100

6

25

30

35

45

50

65

90

100

5

30

35

40

55

60

75

100

100

Circuit of Figure 1, except:

4.5

35

40

45

55

65

85

100

100†

RCL = 200 Ω

3

50

55†

65†

80†

90†

CF = 330 µF

2.9

50†

60†

65†

85†

100†

CP = 0.1 µF

† The difference between the output and input voltage for these combinations is greater than the minimum

output-to-input differential-voltage specification at 70

°C (1.2 V), but less than the minimum at 85°C (1.9 V).

Table 3. Maximum Output Current vs Input and Output Voltages

OUTPUT

SWITCHING REGULATOR INPUT VOLTAGE (SW REG IN2)

(V)

OUTPUT

VOLTAGE

1.1

1.2

1.3

1.5

1.7

2

2.5

3

5

6

9

(V)

OUTPUT CURRENT

(mA)

30

40

70

25

40

55

100

20

10

15

20

55

70

100

15

10

10

20

30

35

75

95

100

12

10

10

10

15

20

25

35

45

95

100

100

10

15

15

15

20

25

30

45

55

100

100

9

15

15

20

25

30

35

50

60

100

100

6

25

25

30

35

45

55

70

90

5

30

30

35

45

50

65

85

100

Circuit of Figure 1, except:

4.5

30

35

40

45

55

70

95

100†

RCL = 300 Ω

3

45

50†

55†

70†

90†

CF = 330 µF

2.9

45†

50†

60†

75†

95†

CP = 0.1 µF

† The difference between the output and input voltage for these combinations is greater than the minimum

output-to-input differential-voltage specification at 70

°C (1.2 V), but less than the minimum at 85°C (1.9 V).