參數(shù)資料
型號： TPS54680EVM
廠商： Texas Instruments, Inc.
英文描述： 6-Amp SWIFT Regulator Evaulation Module(6A SWIFT穩(wěn)壓器TPS54680的評估模塊)
中文描述： 6安培的SWIFT穩(wěn)壓Evaulation模塊（6A條SWIFT的穩(wěn)壓器TPS54680的評估模塊）
文件頁數(shù)： 26/44頁
文件大?。?/td> 1180K
代理商： TPS54680EVM
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54680IPWPRAN 制造商:Texas Instruments 功能描述:
TPS54680MPWPEP 功能描述:直流/直流開關(guān)調(diào)節(jié)器 EP 3-6V Input Tracking Sync Buck 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
TPS54680MPWPREP 制造商:Texas Instruments 功能描述:IC SYNC BUCK PWM CONV 28HTSSOP 制造商:Texas Instruments 功能描述:EP 3-6V Input Tracking Sync Buck
TPS54680PWP 功能描述:直流/直流開關(guān)調(diào)節(jié)器 6A Sync Buck Conver 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
TPS54680PWPG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 6A Sync Buck Conver 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
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