參數(shù)資料
型號(hào)： TPS54873PWPG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
封裝： GREEN, PLASTIC, HTSSOP-28
文件頁(yè)數(shù)： 3/22頁(yè)
文件大?。?/td> 605K
代理商： TPS54873PWPG4
TPS54873
SLVS444A OCTOBER 2002 REVISED FEBRUARY 2005
www.ti.com
11
LAYOUT CONSIDERATIONS FOR THERMAL
PERFORMANCE
For operation at full rated load current, the analog ground
plane must provide adequate heat dissipating area. A 3
inch by 3 inch plane of 1 ounce copper is recommended,
though not mandatory, depending on ambient temperature
and airflow. Most applications have larger areas of internal
ground plane available, and the PowerPAD should be
connected to the largest area available. Additional areas
on the top or bottom layers also help dissipate heat, and
any area available should be used when 6 A or greater
operation is desired. Connection from the exposed area of
the PowerPAD to the analog ground plane layer should be
made using 0.013 inch diameter vias to avoid solder
wicking through the vias. Eight vias should be in the
PowerPAD area with four additional vias located under the
device package. The size of the vias under the package,
but not in the exposed thermal pad area, can be increased
to 0.018. Additional vias beyond the ten recommended
that enhance thermal performance should be included in
areas not under the device package.
Connect Pin 1 to Analog Ground Plane
in This Area for Optimum Performance
Minimum Recommended Top
Side Analog Ground Area
0.3478
0.0150
0.06
0.0256
0.1700
0.1340
0.0630
0.0400
0.0180
4 PL
0.2090
0.0130
8 PL
Minimum Recommended Exposed
Copper Area for Powerpad. 5-mm
Stencils May Require 10 Percent
Larger Area
0.0650
0.0500
0.0650
0.0339
0.0500
Minimum Recommended Thermal Vias: 8 x 0.013 Diameter Inside
Powerpad Area 4 x 0.018 Diameter Under Device as Shown.
Additional 0.018 Diameter Vias May Be Used if Top Side Analog Ground
Area Is Extended.
0.3820
Figure 11. Recommended Land Pattern for 28-Pin PWP PowerPAD
相關(guān)PDF資料
PDF描述
TPS54880PWPR 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54973PWP 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54974PWP 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54974PWPG4 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54974PWPR 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54873PWPR 功能描述:直流/直流開(kāi)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(kāi)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
TPS54873PWPRG4 功能描述:直流/直流開(kāi)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(kāi)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
TPS54880 制造商:TI 制造商全稱:Texas Instruments 功能描述:4-V TO 6-V INPUT, 8-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT) FOR SEQUENCING
TPS54880EVM 功能描述:電源管理IC開(kāi)發(fā)工具 8-A DC/DC Conv RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS54880PWP 功能描述:直流/直流開(kāi)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(kāi)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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