參數(shù)資料
型號(hào): TPS54980PWP
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
封裝: GREEN, PLASTIC, HTSSOP-28
文件頁數(shù): 19/21頁
文件大?。?/td> 568K
代理商: TPS54980PWP
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
Reststance
m
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
Drain
Source
On-State
Reststance
m
Figure 3
250
350
450
550
650
750
40
0
25
85
125
TJ Junction Temperature °C
f
Internally
Set
Oscillator
Frequency
kHz
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
f
Externally
Set
Oscillator
Frequency
kHz
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
V
o
ltage
Reference
V
VOLTAGE REFERENCE
vs
JUNCTION TEMPERATURE
V
ref
Figure 6
IL Load Current A
Device
Power
Losses
W
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
Output
V
oltage
Regulation
V
O
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
Gain
dB
ERROR AMPLIFIER
OPEN LOOP RESPONSE
Phase
Degrees
Phase
Gain
RL = 10 k,
CL = 160 pF,
TA = 25°C
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