TL499A

WIDE-RANGE POWER-SUPPLY CONTROLLERS

SLVS029G – JANUARY 1984 – REVISED SEPTEMBER 2001

6

POST OFFICE BOX 655303

APPLICATION INFORMATION

Table 4. 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

30

50

25

25

40

75

20

40

55

90

15

15

20

55

70

100

12

10

15

25

35

65

80

100

10

10

20

25

30

40

70

85

9

10

10

10

15

20

25

35

45

75

100

6

15

20

20

25

30

35

50

60

5

20

20

25

30

35

45

55

70

Circuit of Figure 1, except:

4.5

20

25

30

35

40

50

65

90†

RCL = 510 Ω

3

35

35†

40†

50†

75†

CF = 330 µF

2.9

35†

35†

40†

55†

80†

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 5. 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

35

25

35

50

20

35

60

15

10

30

45

65

12

20

40

45

85

10

15

25

40

55

9

10

10

15

25

30

45

60

6

10

10

10

15

20

20

30

35

5

10

10

15

20

20

25

35

40

Circuit of Figure 1, except:

4.5

15

15

15

20

25

30

40

45†

RCL = 1 kΩ

3

20

25†

25†

30†

35†

CF = 330 µF

2.9

20†

25†

25†

30†

45†

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).