參數(shù)資料
型號： TPS54880EVM
廠商： Texas Instruments, Inc.
英文描述： 8-Amp SWIFT Regulator Evaulation Module(8A SWIFT穩(wěn)壓器TPS54880的評估模塊)
中文描述： 8安培的SWIFT穩(wěn)壓Evaulation模塊（8A條SWIFT的穩(wěn)壓器TPS54880的評估模塊）
文件頁數(shù)： 26/44頁
文件大小： 1180K
代理商： TPS54880EVM
Efficiency
2-8
2.3
Efficiency
The TPS54x80EVM-228 efficiency depends on output voltage, even though
the power losses are roughly the same for any output voltage. Efficiency also
depends on input voltage. For the output current below 3 A, the efficiency is
higher at 3.3-V input voltage because of lower switching losses. For the output
current above 3 A, the efficiency is better at 5-V input voltage because of lower
drain-to-source resistance of integrated FETs driven by higher gate voltage.
The efficiency shown in Figure 2-8 is for 5-V input (TPS54680, TPS54880)
and 3.3-V input (TPS54680) at ambient temperature of 25
°
C.
Figure 2-8.Measured Efficiency
60
65
70
75
80
85
90
95
0.5
1
1.5
2
I
O
- Output Current - A
2.5
3
3.5
4
4.5
5
5.5
6
V
O
= 1.8 V
V
O
= 1.2 V
V
O
= 0.9 V
V
I
= 3.3 V,
F
(SW)
= 700 kHz
E
TPS54680
EFFICIENCY
vs
OUTPUT CURRENT
50
55
60
65
70
75
80
85
90
95
100
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8
I
O
- Output Current - A
V
I
= 5 V,
F
(SW)
= 700 kHz
E
TPS54680/TPS54880
EFFICIENCY
vs
OUTPUT CURRENT
V
O
= 1.8 V
V
O
= 1.2 V
V
O
= 0.9 V
The input current, consumed by 3.3-V output regulator TPS54x10, is excluded
from these data. The measurements relate only to the core voltage channel
provided by tracking regulators TPS54680 and TPS54880. Efficiency is lower
at higher ambient temperatures, due to temperature variation in the
drain-to-source resistance of the MOSFETs. The efficiency is slightly lower at
700 kHz than at lower switching frequencies, due to the switching losses in the
MOSFETs.
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TPS54880PWP 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5V Inp 8A Sync Buck Converter 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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54880PWPG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5V Inp 8A Sync Buck Converter 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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54880PWPR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5V Inp 8A Sync Buck Converter 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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54880PWPRG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 5V Inp 8A Sync Buck Converter 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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS548A20EVM-737 功能描述:EVALUATION MODULE 制造商:texas instruments 系列:* 零件狀態(tài):在售 標準包裝:1
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