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| 型号： | TPS54350PWP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 6.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | GREEN, PLASTIC, HTSSOP-16 |
| 文件页数： | 4/32页 |
| 文件大小： | 762K |
| 代理商： | TPS54350PWP |
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TPS54350
SLVS456C OCTOBER 2003 REVISED OCTOBER 2004
www.ti.com
12
Figure 14
POWER DOWN
Power
Down
W
aveforms
V
Time 2 ms/div
VO = 2 V/div
See Figure 24
VI = 5 V/div
V(PWRGD) = 2 V/div
Figure 15
50
55
60
65
70
75
80
85
90
95
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
EFFICIENCY
vs
OUTPUT CURRENT
Efficiency
%
IO Output Current A
VO = 3.3 V
fS = 500 kHz
See Figure 25
VI = 6 V
VI = 18 V
VI = 12 V
Figure 16
CONTINUOUS CONDUCTION MODE
Continuous
Conduction
Mode
Time 1
s/div
See Figure 25
V(PH) = 5 V/div
I(Inductor) = 0.5 A/div
Figure 17
DISCONTINUOUS CONDUCTION MODE
Discontinuous
Conduction
Mode
Time 1
s/div
See Figure 25
V(PH) = 5 V/div
I(Inductor) = 0.5 A/div
Figure 18
SEQUENCING WAVEFORMS
Sequencing
W
aveforms
V
Time 2 ms/div
VO1 = 2 V/div
V = 1.8 V, 3.3 V
See Figure 26
VI = 10 V/div
V(PWRGD) = 2 V/div
VO2 = 2 V/div
Figure 19
INPUT RIPPLE CANCELLATION
Input
Ripple
Cancellation
V
Time 1
s/div
VIN = 12 V, VO1 = 1.8 V,
VO2 = 3.3 V, See Figure 26
V(PH1) = 10 V/div
VI(Ripple) = 100 mV/div (ac coupled)
V(PH2) = 10 V/div
Figure 20
50
55
60
65
70
75
80
85
90
95
100
0.0
0.5
1.0
1.5
2.0
EFFICIENCY
vs
OUTPUT CURRENT
Efficiency
%
IO Output Current A
VI = 5 V
VO = 5 V
fS = 250 kHz
See Figure 27
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS54350PWP | 制造商:Texas Instruments 功能描述:IC's |
| TPS54350PWPG4 | 功能描述:直流/直流开关调节器 4.5 to 20V Inp 3A Step-Down Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS54350PWPR | 功能描述:开关变换器、稳压器与控制器 4.5 to 20V Inp 3A Step-Down Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS54350PWPRG4 | 功能描述:开关变换器、稳压器与控制器 4.5 to 20V Inp 3A Step-Down Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS54352 | 制造商:TI 制造商全称: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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