参数资料
型号: TPS5103IDBG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 3 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO20
封装: GREEN, PLASTIC, SSOP-20
文件页数: 7/40页
文件大小: 1225K
代理商: TPS5103IDBG4
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
A
VCC = 25 V
VCC = 7 V
VCC = 4.5 V
TJ – Junction Temperature – °C
Figure 24
VCC = 7 V,
VCC = 25 V
VCC = 4.5 V
2.5
1.5
1
0
–40
–20
25
Softstart
Threshold
V
oltage
V
3.5
4
SOFTSTART THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
4.5
85
125
3
2
0.5
V
TLH
TJ – Junction Temperature – °C
Figure 25
VCC = 7 V,
VCC = 25 V
VCC = 4.5 V
TJ – Junction Temperature – °C
2
1.5
1
–40
–20
25
2.5
3
3.5
85
125
Softstart
Threshold
V
oltage
V
SOFTSTART THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
V
THL
Figure 26
VCC = 4.5 V,
VCC = 7 V,
VCC = 25 V
1.188
1.185
1.183
1.180
–40
–20
25
Threshold
V
oltage
V
1.190
1.193
OUTPUT VOLTAGE MONITOR COMPARATOR
THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
1.195
85
125
Output
V
oltage
Monitor
Comparator
V
TH
TJ – Junction Temperature – °C
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