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| 型号： | TPS5120QDBTRQ1 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO30 |
| 封装： | PLASTIC, SM8-30 |
| 文件页数： | 7/21页 |
| 文件大小： | 320K |
| 代理商： | TPS5120QDBTRQ1 |
TPS5120Q1
DUAL OUTPUT, TWOPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER
SGLS225B JANUARY 2004 REVISED APRIL 2008
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 18
REG5V_IN THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
4.4
4.5
4.6
4.7
50
0
50
100
150
V (T
O)
REG5V_IN
Threshold
V
oltage
V
V(TO_L)
V(TO_H)
TJ Junction Temperature °C
Figure 19
REG5V_IN HYSTERESIS VOLTAGE
vs
JUNCTION TEMPERATURE
0
20
40
60
80
100
120
140
50
0
50
100
150
V
hys
REG5V_IN
Hysteresis
V
oltage
mV
TJ Junction Temperature °C
Figure 20
50
0
50
100
150
SOFTSTART CURRENT
vs
JUNCTION TEMPERATURE
2.30
2.28
2.26
2.24
2.22
2.20
2.18
2.16
2.14
2.12
2.10
Softstart
Current
A
VCC = 4.5 V
TJ Junction Temperature °C
VCC = 7 V,
VCC = 28 V
Figure 21
OVP THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
944
946
948
950
952
954
956
50
0
50
100
150
V
(T
O)
OVP
Threshold
V
oltage
mV
VCC = 4.5 V
TJ Junction Temperature °C
VCC = 7 V,
VCC = 28 V
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