Datasheet

TPS5103
MULTIPLE MODE SYNCHRONOUS DC/DC CONTROLLER
SLVS240A – SEPTEMBER 1999 – REVISED MAY 2001
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 23
–2.35
–2.30
–2.25
–2.20
–40 –20 25
– Softstart Current –
–2.40
SOFTSTART CURRENT
vs
JUNCTION TEMPERATURE
–2.45
85 125
I
CTRL
Aµ
V
CC
= 25 V
V
CC
= 7 V
V
CC
= 4.5 V
T
J
– Junction Temperature – °C
Figure 24
V
CC
= 7 V,
V
CC
= 25 V
V
CC
= 4.5 V
2.5
1.5
1
0
–40 –20 25
– Softstart Threshold Voltage – V
3.5
4
SOFTSTART THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
4.5
85 125
3
2
0.5
V
TLH
T
J
– Junction Temperature – °C
Figure 25
V
CC
= 7 V,
V
CC
= 25 V
V
CC
= 4.5 V
T
J
– Junction Temperature – °C
2
1.5
1
–40 –20 25
2.5
3
3.5
85 125
– Softstart Threshold Voltage – V
SOFTSTART THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
V
THL
Figure 26
V
CC
= 4.5 V,
V
CC
= 7 V,
V
CC
= 25 V
1.188
1.185
1.183
1.180
–40 –20 25
Threshold Voltage – V
1.190
1.193
OUTPUT VOLTAGE MONITOR COMPARATOR
THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
1.195
85 125
– Output Voltage Monitor Comparator
V
TH
T
J
– Junction Temperature – °C