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TPS54980PWPG4 Fiches technique(PDF) 7 Page - Texas Instruments

No de pièce TPS54980PWPG4
Description  3-V TO 4-V INPUT,9-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTERRATED FETs(SWIFT)FOR SEQUENCING
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54980PWPG4 Fiches technique(HTML) 7 Page - Texas Instruments

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TPS54980
SLVS452A − FEBRUARY 2003 − REVISED FEBRUARY 2005
www.ti.com
7
TYPICAL CHARACTERISTICS
Figure 1
0
5
10
15
20
25
−40
0
25
85
125
VIN = 3.0 V
IO = 9 A
DRAIN-SOURCE
ON-STATE RESISTANCE
vs
JUNCTION TEMPERATURE
TJ − Junction Temperature − °C
Figure 2
0
5
10
15
20
25
−40
0
25
85
125
VIN = 3.6 V
IO = 9 A
DRAIN-SOURCE
ON-STATE RESISTANCE
vs
JUNCTION TEMPERATURE
TJ − Junction Temperature − °C
Figure 3
250
350
450
550
650
750
−40
0
25
85
125
TJ − Junction Temperature − °C
INTERNALLY SET
OSCILLATOR FREQUENCY
vs
JUNCTION TEMPERATURE
Figure 4
200
300
400
500
600
700
800
−40
0
25
85
125
TJ − Junction Temperature − °C
EXTERNALLY SET
OSCILLATOR FREQUENCY
vs
JUNCTION TEMPERATURE
RT = 68 k
RT = 100 k
RT = 180 k
Figure 5
0.885
0.887
0.889
0.891
0.893
0.895
−40
0
25
85
125
TJ − Junction Temperature − °C
VOLTAGE REFERENCE
vs
JUNCTION TEMPERATURE
Figure 6
IL − Load Current − A
DEVICE POWER LOSSES
vs
LOAD CURRENT
0
1
2
3
4
5
6
7
8
02468
10
12
14
16
VI = 3.3 V
TJ = 125°C
Figure 7
0.885
0.887
0.889
0.891
0.893
0.895
3
3.1
3.2
3.3
3.4
3.5
3.6
VI − Input Voltage − V
OUTPUT VOLTAGE REGULATION
vs
INPUT VOLTAGE
Figure 8
−20
0
20
40
60
80
100
120
140
1
100
1 k
1 M
−200
−180
−160
−140
−120
−100
−80
−60
−40
−20
0
10
10 k
100 k
10 M
f − Frequency − Hz
ERROR AMPLIFIER
OPEN LOOP RESPONSE
Phase
Gain
RL = 10 kΩ,
CL = 160 pF,
TA = 25°C


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