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参数资料
| 型号： | TS2507CSRL |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | ROHS COMPLIANT, SOP-8 |
| 文件页数： | 5/9页 |
| 文件大小： | 366K |
| 代理商： | TS2507CSRL |
TS2507
0.5A / 330KHz PWM Buck Controller
5/9
Version: A07
Function Descriptions (Continue)
Inductor Selection
For most designs, Low inductance values are physically smaller but require faster switching, which results in some
efficiency loss. The inductor value can be derived from the following equation:
Where is inductor Ripple Current. Large value inductors lower ripple current and small value inductors result in high
ripple currents. Choose inductor ripple current approximately 15% of the maximum input current 3A, IL=0.45A.
Table 2 Inductor select for output voltage setting (TS2507 at VCC=12V)
VOUT
2.5V
3.3V
5V
3.3V(5A)
5V(5A)
L1 Value
15uH
18uH
22uH
12uH
15uH
The DC current rating of the inductor should be at least equal to the maximum load current plus half the ripple current
to prevent core saturation (3A+0.3A).
Layout Guidance
When laying out the PC board, the following suggestions should be taken to ensure proper operation of the TS2507.
These items are also illustrated graphically in below.
1. The power traces, including the PMOS Drain & Source trace, the Schottky and the C2 trace should be kept short,
direct and wide to allow large current flow.
2. Connect the C5 to the VCC & EN pins of the TS2507 as closely as possible to get good power filter effect.
3. Keep the switching node, away from the sensitive FB node.
4. Connect ground side of the C2 & D1 as closely as possible.
5. Connect PMOS Source and R3 as closely as possible.
6. Do not trace signal line under inductor.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TS2508 | 制造商:TSC 制造商全称:Taiwan Semiconductor Company, Ltd 功能描述:2A / 330KHz PWM Buck Converter |
| TS2508A | 制造商:TSC 制造商全称:Taiwan Semiconductor Company, Ltd 功能描述:3A / 330KHz PWM Buck Converter |
| TS2508A_12 | 制造商:TSC 制造商全称:Taiwan Semiconductor Company, Ltd 功能描述:3A / 330KHz PWM Buck Converter |
| TS2508ACS RL | 功能描述:直流/直流开关转换器 PWM buck controller 2A 330KHz RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TS2508ACSRL | 制造商:TSC 制造商全称:Taiwan Semiconductor Company, Ltd 功能描述:3A / 330KHz PWM Buck Converter |
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