參數(shù)資料
型號： TPS54354MPWPREP
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 6.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO16
封裝： GREEN, PLASTIC, HTSSOP-16
文件頁數(shù)： 7/35頁
文件大?。?/td> 1132K
代理商： TPS54354MPWPREP
VI = 5 V/div
VO= 2 V/div
V(PWRGD)= 2 V/div
POWER DOWN
Time 2 ms/div
Power
Down
W
aveforms
V
See Figure 25
I(L1) = 200 mA/div
V(PH) = 5 V/div
CONTINUOUS CONDUCTION MODE
Time 1
s/div
Continuous
Conduction
Mode
See Figure 26
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
VI = 18 V
IO Output Current A
Efficiency
%
EFFICIENCY
vs
OUTPUT CURRENT
VI = 12 V
VI = 6 V
See Figure 26
VI = 10 V/div
VO1(3.3)= 2 V/div
V(PWRGD1)= 2 V/div
SEQUENCING WAVEFORMS
Time 2 ms/div
Sequencing
W
aveforms
V
VO2 (1.8)= 2 V/div
See Figure 27
I(L1) = 200 mA/div
V(PH) = 5 V/div
LIGHT LOAD CONDUCTION
Time 1
s/div
Light
Load
Conduction
See Figure 26
V(PH1) = 10 V/div
VI = 50 mV/div (ac coupled)
INPUT RIPPLE CANCELLATION
Time 1
s/div
Input
Ripple
Cancellation
V
V(PH2) = 10 V/div
See Figure 27
60
50
40
30
20
10
0
10
20
30
40
50
60
100
1 k
10 k
100 k
1 M
180
150
120
90
60
30
0
30
60
90
120
150
180
Phase
Gain
f Frequency Hz
G
Gain
dB
Phase
Degrees
MEASURED LOOP RESPONSE
100-mF POSCAP
See Figure 28
60
50
40
30
20
10
0
10
20
30
40
50
60
100
1 k
10 k
100 k
1 M
180
150
120
90
60
30
0
30
60
90
120
150
180
Phase
Gain
f Frequency Hz
G
Gain
dB
Phase
Degrees
MEASURED LOOP RESPONSE
2 y 180-mF SP CAPACITORS
See Figure 29
60
50
40
30
20
10
0
10
20
30
40
50
60
100
1 k
10 k
100 k
1 M
180
150
120
90
60
30
0
30
60
90
120
150
180
Phase
Gain
f Frequency Hz
G
Gain
dB
Phase
Degrees
MEASURED LOOP RESPONSE
330-mF OSCON
See Figure 30
www.ti.com ....................................................................................................................................................... SLVS684A – JANUARY 2007 – REVISED JULY 2009
TYPICAL CHARACTERISTICS (continued)
Conditions are VI = 12 V, VO = 3.3 V, fs = 500 kHz, IO = 3 A, TA = 25°C (unless otherwise noted).
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Copyright 2007–2009, Texas Instruments Incorporated
15
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54354PWP 功能描述:直流/直流開關(guān)調(diào)節(jié)器 4.5 to 20V Inp 3-A Synch PWM Switch RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54354PWPG4 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 4.5 to 20V Inp 3-A Synch PWM Switch RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS54354PWPR 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 4.5 to 20V Inp 3-A Synch PWM Switch RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS54354PWPRG4 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 4.5 to 20V Inp 3-A Synch PWM Switch RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS54355 制造商:TI 制造商全稱:Texas Instruments 功能描述:4.5V TO 20 V INPUT 3-A OUTPUT SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FET
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