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| 型號： | TPS54973PWP |
| 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)： | 4/22頁 |
| 文件大小： | 604K |
| 代理商： | TPS54973PWP |
TPS54973
SLVS453A FEBRUARY 2003 REVISED FEBRUARY 2005
www.ti.com
12
PERFORMANCE GRAPHS
Data shown is for the circuit in Figure 9 with precharge disabled (D1 and D2 removed) except for slow-start timing
of Figure 18. All data is for VI = 3.3 V, VO = 2.5 V, fs = 700 kHz and TA = 25°C, unless otherwise specified.
Figure 12
50
55
60
65
70
75
80
85
90
95
100
0
2468
10
EFFICIENCY
vs
OUTPUT CURRENT
VI = 3.3 V
IO Output Current A
Efficiency
%
1.79
1.792
1.794
1.796
1.798
1.8
1.802
1.804
1.806
1.808
1.81
02
46
8
10
IO Output Current A
Output
V
o
lt
ag
e
V
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
VI = 3.3 V
V O
Figure 14
3
3.25
3.5
3.75
4
1.79
1.792
1.794
1.796
1.798
1.802
1.804
1.806
1.808
1.81
1.8
IO = 9 A
IO = 4.5 A
IO = 0 A
VI Input Voltage V
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
Output
V
o
lt
ag
e
V
V O
Figure 15
40
0
10
40
60
100
1 k
10 k
100 k
1 M
120
60
30
120
180
f Frequency Hz
Gain
dB
LOOP RESPONSE
Phase
Degrees
30
20
10
20
30
50
150
60
90
0
30
90
Phase
Gain
Figure 16
25
35
45
55
65
75
85
95
105
115
125
Ambient
T
emperature
AMBIENT TEMPERATURE
vs
LOAD CURRENT(1)
C°
IO Output Current A
0
2
4
6
8
10
12
14
16
fs = 700 kHz,
TJ = 125°C,
VI = 3.3 V,
VO = 1.8 V
Figure 17
OUTPUT AND INPUT RIPPLE
210
mV/div
2V/div
100
mV/div
t Time 1 s/div
Figure 18
LOAD TRANSIENT RESPONSE
20
mV/div
2V/div
t Time 100 s/div
I = 2.25 A to 6.75 A
Figure 19
VI/O = 3.3 V
V(core) = 1.8 V
1V/div
t Time 10 ms/div
SLOW-START TIMING
(1) Safe operating area is applicable to the test board conditions in the Dissipation Ratings
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| TPS54973PWPG4 | 功能描述:直流/直流開關調(diào)節(jié)器 3.3V Inp 9A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54973PWPR | 功能描述:直流/直流開關調(diào)節(jié)器 3.3V Inp 9A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54973PWPRG4 | 功能描述:直流/直流開關調(diào)節(jié)器 3.3V Inp 9A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54974 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL INPUT BUS (2.5V, 3.3V) 9-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs |
| TPS54974PWP | 功能描述:直流/直流開關調(diào)節(jié)器 Dl Inp Bus 3.3 2.5V 9A Output Synch Buck RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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