TL499A_15 Datasheet, PDF (6/13 Pages) Texas Instruments – WIDE-RANGE POWER-SUPPLY CONTROLLERS

TL499A
WIDE-RANGE POWER-SUPPLY CONTROLLERS
SLVS029G – JANUARY 1984 – REVISED SEPTEMBER 2001
APPLICATION INFORMATION
Table 4. Maximum Output Current vs Input and Output Voltages
for Step-Up Switching Regulator With R_CL = 510 Ω
SWITCHING REGULATOR INPUT VOLTAGE (SW REG IN2)
OUTPUT
(V)
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
for Step-Up Switching Regulator With R_CL = 1 kΩ
SWITCHING REGULATOR INPUT VOLTAGE (SW REG IN2)
OUTPUT
(V)
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).
6
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