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參數(shù)資料
| 型號： | TPS54331DG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2 A SWITCHING REGULATOR, 684 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件頁數(shù)： | 2/27頁 |
| 文件大?。?/td> | 794K |
| 代理商： | TPS54331DG4 |
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0.01 F
4.7F
Vin7V
28V
–
0.01 F
0.1 F
332k
68.1k
47pF
0
47 F
Vout3.3V
IoutMax3 A
6.8 H
10.2k
3.24k
29.4k
1000pF
47 F
SLVS839C – JULY 2008 – REVISED MARCH 2010
www.ti.com
APPLICATION INFORMATION
Figure 13. Typical Application Schematic
STEP BY STEP DESIGN PROCEDURE
The following design procedure can be used to select component values for the TPS54331. Alternately, the
SwitcherProSoftware may be used to generate a complete design. The SwitcherPro 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
For this design example, use the following as the input parameters
Table 3. Design Parameters
DESIGN PARAMETER
EXAMPLE VALUE
Input voltage range
7 V to 28V
Output voltage
3.3 V
Input ripple voltage
300 mV
Output ripple voltage
30 mV
Output current rating
3 A
Operating Frequency
570 kHz
SWITCHING FREQUENCY
The switching frequency for the TPS54331 is fixed at 570 kHz.
10
Copyright 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS54331
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS54331DR | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 3A 28V In Step Down SWIFT DC/DC Cnvrtr RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| TPS54331DRG4 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 26V,3A DC-DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| TPS54331DR-P | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| TPS54331EVM-232 | 功能描述:電源管理IC開發(fā)工具 SWIFT Cnvrtr Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)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 |
| TPS54331EVM-232 | 制造商:Texas Instruments 功能描述:DEVELOPMENT TOOL |
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