TL499A_15 Datasheet, PDF (5/13 Pages) Texas Instruments – WIDE-RANGE POWER-SUPPLY CONTROLLERS

TL499A
WIDE-RANGE POWER-SUPPLY CONTROLLERS
SLVS029G – JANUARY 1984 – REVISED SEPTEMBER 2001
APPLICATION INFORMATION
Table 2. Maximum Output Current vs Input and Output Voltages
for Step-Up Switching Regulator With R_CL = 200 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
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
for Step-Up Switching Regulator With R_CL = 300 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
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).
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
5