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| 型号： | TPS61240YFFR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.45 A SWITCHING REGULATOR, 3500 kHz SWITCHING FREQ-MAX, BGA6 |
| 封装： | 0.40 MM PITCH, GREEN, DSBGA-6 |
| 文件页数： | 8/26页 |
| 文件大小： | 755K |
| 代理商： | TPS61240YFFR |
V
IN
GND
V
OUT
L
C
I
C
O
EN
SLVS806A – APRIL 2009 – REVISED MAY 2009
www.ti.com
LAYOUT CONSIDERATIONS
As for all switching power supplies, the layout is an important step in the design, especially at high peak currents
and high switching frequencies. If the layout is not carefully done, the regulator could show stability problems as
well as EMI problems. Therefore, use wide and short traces for the main current path and for the power ground
tracks. The input and output capacitor, as well as the inductor should be placed as close as possible to the IC.
Use a common ground node for power ground and a different one for control ground to minimize the effects of
ground noise. Connect these ground nodes at any place close to one of the ground pins of the IC. The feedback
divider should be placed as close as possible to the control ground pin of the IC. To lay out the control ground, it
is recommended to use short traces as well, separated from the power ground traces. This avoids ground shift
problems, which can occur due to superimposition of power ground current and control ground current.
LAYOUT GUIDELINES
Figure 20. Suggested Layout (Top)
16
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s) :TPS61240, TPS61241
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS61240YFFT | 功能描述:直流/直流开关调节器 5V, 400mA, 4MHz Step Up DC/DC Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS61240YFFT | 制造商:Texas Instruments 功能描述:DC/DC Converter IC |
| TPS61241 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3.5-MHz High Efficiency Step-Up Converter |
| TPS61241YFF | 制造商:TI 制造商全称:Texas Instruments 功能描述:3.5-MHz High Efficiency Step-Up Converter |
| TPS61241YFFR | 功能描述:直流/直流开关调节器 5V 500mA 4MHz Step- Up DC/DC Cnvrtr RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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