參數(shù)資料
型號(hào): TPS5120DBTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 1.5 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO30
封裝: GREEN, PLASTIC, TSSOP-30
文件頁(yè)數(shù): 6/23頁(yè)
文件大?。?/td> 489K
代理商: TPS5120DBTG4
TPS5120
DUAL OUTPUT, TWOPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER
SLVS278E – AUGUST 2000 – REVISED MARCH 2003
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 14
VREF5 OUTPUT VOLTAGE
vs
OUTPUT CURRENT
4.50
4.60
4.70
4.80
4.90
5.00
5.10
5.20
–60
–50
–40
–30
–20
–10
0
IO– Output Current – mA
TJ = –40 °C
TJ = –20 °C
TJ = 25 °C
TJ = 85 °C
TJ = 125 °C
V
O
VREF5
Output
V
o
ltage
V
Figure 15
VREF5 SHORT-CIRCUIT OUTPUT CURRENT
vs
JUNCTION TEMPERATURE
–120
–100
–80
–60
–40
–20
0
–50
0
50
100
150
I OS
VREF5
Short
Circuit
Output
Current
mA
VCC = 4.5 V
VCC = 7 V
VCC = 28 V
TJ – Junction Temperature – °C
Figure 16
UVLO THRESHOLD VOLTAGE
vs
JUNCTION TEMPERATURE
3.50
3.60
3.70
3.80
3.90
4.00
–50
0
50
100
150
V
(T
O)
UVLO
Threshold
V
o
ltage
V
V(TO_H)
V(TO_L)
TJ – Junction Temperature – °C
Figure 17
UVLO HYSTERESIS VOLTAGE
vs
JUNCTION TEMPERATURE
0
20
40
60
80
100
120
140
–50
0
50
100
150
V
hys
UVLO
Hysteresis
V
oltage
mV
TJ – Junction Temperature – °C
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