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參數(shù)資料
| 型號： | TPS54227DDA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | PLASTIC, MS-012BA, SOP-8 |
| 文件頁數(shù)： | 6/19頁 |
| 文件大?。?/td> | 323K |
| 代理商： | TPS54227DDA |
SLVSAU2
– MAY 2011
VREG5 Capacitor Selection
A 1-
F. ceramic capacitor must be connected between the VREG5 to GND pin for proper operation. It is
recommended to use a ceramic capacitor.
THERMAL INFORMATION
This 8-pin DDA package incorporates an exposed thermal pad that is designed to be directly to an external
heartsick. The thermal pad must be soldered directly to the printed board (PCB). After soldering, the PCB can be
used as a heartsick. In addition, through the use of thermal vias, the thermal pad can be attached directly to the
appropriate copper plane shown in the electrical schematic for the device, or alternatively, can be attached to a
special heartsick structure designed into the PCB. This design optimizes the heat transfer from the integrated
circuit (IC).
For additional information on the exposed thermal pad and how to use the advantage of its heat dissipating
abilities, refer to Technical Brief, PowerPAD
Thermally Enhanced Package, Texas Instruments Literature No.
SLMA002 and Application Brief, PowerPAD
Made Easy, Texas Instruments Literature No. SLMA004.
The exposed thermal pad dimensions for this package are shown in the following illustration.
Figure 15. Thermal Pad Dimensions (Top View)
14
Copyright
2011, Texas Instruments Incorporated
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| TPS54228 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4.5V to 18V Input, 2-A Synchronous Step-Down SWIFT |
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