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參數資料
| 型號： | TPS61251DSG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, 3500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 2 X 2 MM, PLASTIC, WSON-8 |
| 文件頁數： | 8/21頁 |
| 文件大小： | 446K |
| 代理商： | TPS61251DSG |
L1
C
IN
C
OUT
GND
V
IN
V
OUT
R
ILIM
R2
R1
C
FF
10mm (0.39in)
7mm
(0.27in)
SLVSAF7 – SEPTEMBER 2010
www.ti.com
Figure 10. Suggested Layout without bulk capacitors (Top)
THERMAL INFORMATION
Implementation of integrated circuits in low-profile and fine-pitch surface-mount packages typically requires
special attention to power dissipation. Many system-dependant issues such as thermal coupling, airflow, added
heat sinks and convection surfaces, and the presence of other heat-generating components affect the
power-dissipation limits of a given component.
Three basic approaches for enhancing thermal performance are listed below:
Improving the power dissipation capability of the PCB design
–
E.g. increase of the GND plane on the top layer which is connected to the exposed thermal pad
–
Use thicker cupper layer
Improving the thermal coupling of the component to the PCB
Introducing airflow in the system
Junction-to-ambient thermal resistance is highly application and board-layout dependent. In applications where
high maximum power dissipation exists, special care must be paid to thermal dissipation issues in board design.
The maximum junction temperature (TJ) of the TPS61251 is 150°C.
16
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS61251
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相關代理商/技術參數 |
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| TPS61251DSGR | 功能描述:直流/直流開關調節器 3.5MHz1.5A Current Limit92% Eff Boost RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS61251DSGT | 功能描述:直流/直流開關調節器 3.5MHz1.5A Current Limit92% Eff Boost RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS61251DSGT | 制造商:Texas Instruments 功能描述:IC BOOST DC/DC CONV ADJ 3V-6.5V OUTPUT 制造商:Texas Instruments 功能描述:IC, BOOST DC/DC CONV, ADJ 3V-6.5V OUTPUT, 1.5A, 8-QFN |
| TPS61251EVM-517 | 功能描述:電源管理IC開發工具 TPS61251 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS61252 | 制造商:TAOS 制造商全稱:TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS 功能描述:TINY 1.5-A BOOST CONVERTER WITH ADJUSTABLE INPUT CURRENT LIMIT |
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