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TPS54880PWPR 数据表(PDF) 7 Page - Texas Instruments

部件名 TPS54880PWPR
功能描述  4-V TO 6-V INPUT, 8-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT™) FOR SEQUENCING
PDF  23 Pages
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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

TPS54880PWPR 数据表(HTML) 7 Page - Texas Instruments

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TPS54880
SLVS450A − OCTOBER 2002 REVISED APRIL 2005
www.ti.com
7
TYPICAL CHARACTERISTICS
Figure 1
0
10
20
30
40
50
60
−40
0
25
85
125
VIN = 5 V
IO = 6 A
DRAIN-SOURCE
ON-STATE RESISTANCE
vs
JUNCTION TEMPERATURE
TJ − Junction Temperature − °C
Figure 2
250
350
450
550
650
750
−40
0
25
85
125
TJ − Junction Temperature − °C
INTERNALLY SET
OSCILLATOR FREQUENCY
vs
JUNCTION TEMPERATURE
Figure 3
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 4
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 5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
01
23
45
67
8
IL − Load Current − A
DEVICE POWER LOSSES AT TJ = 125°C
vs
LOAD CURRENT
TJ = 125°C
fs = 700 kHz
VI = 5 V
Figure 6
0.885
0.887
0.889
0.891
0.893
0.895
3
3.5
4
4.5
5
5.5
6
fs = 550 kHz
TA = 85°C,
IO = 3 A
VI − Input Voltage − V
OUTPUT VOLTAGE REGULATION
vs
INPUT VOLTAGE
Figure 7
−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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