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參數資料
| 型號： | TPS5450MDDAREP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 11.7 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, SOIC-8 |
| 文件頁數： | 3/24頁 |
| 文件大小： | 772K |
| 代理商： | TPS5450MDDAREP |
Application Circuits
Design Procedure
www.ti.com ....................................................................................................................................................................................................... SLVS935 – JULY 2009
Figure 11 shows the schematic for a typical TPS5450 application. The TPS5450 can provide up to 5-A output
current at a nominal output voltage of 5 V. For proper thermal performance, the exposed PowerPAD
underneath the device must be soldered down to the printed-circuit board.
Figure 11. Application Circuit, 12-V to 5.0-V
The following design procedure can be used to select component values for the TPS5450. Alternately, the
SWIFT Designer Software may be used to generate a complete design. The SWIFT Designer Software uses
an iterative design procedure and accesses a comprehensive database of components when generating a
design. This section presents a simplified discussion of the design process.
To begin the design process a few parameters must be decided upon. The designer needs to know the following:
Input voltage range
Output voltage
Input ripple voltage
Output ripple voltage
Output current rating
Operating frequency
Design Parameters
For this design example, use the following as the input parameters:
DESIGN PARAMETER(1)
EXAMPLE VALUE
Input voltage range
10 V to 31 V
Output voltage
5 V
Input ripple voltage
400 mV
Output ripple voltage
30 mV
Output current rating
5 A
Operating frequency
500 kHz
(1)
As an additional constraint, the design is set up to be small size and low component height.
Copyright 2009, Texas Instruments Incorporated
11
Product Folder Link(s): TPS5450-EP
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相關代理商/技術參數 |
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| TPS5450-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:5-A, WIDE INPUT RANGE, STEP-DOWN SWIFTa?￠ CONVERTER |
| TPS5450QDDARQ1 | 功能描述:直流/直流開關調節器 5A Wide Inp Step Down SWIFT Converter 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 |
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| TPS54519EVM-037 | 功能描述:電源管理IC開發工具 TPS54519 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 |
| TPS54519EVM-037 | 制造商:Texas Instruments 功能描述:TPS54519, DC/DC CONVERTER, STEP DOWN, EV |
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