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参数资料
| 型号： | TS2508ACSRL |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | ROHS COMPLIANT, SOP-8 |
| 文件页数： | 3/8页 |
| 文件大小： | 241K |
| 代理商： | TS2508ACSRL |
TS2508A
3A / 330KHz PWM Buck Converter
3/8
Version: A09
Application Circuit
Typical Circuit
L1 recommend value (VIN=12V, IOUT=3A )
VOUT
1.8V
2.5V
3.3V
5V
L1 Value
18uH
22uH
27uH
33uH
Function Descriptions
PWM Control
The TS2508A consists of DC/DC converters that employ a pulse-width modulation (PWM) system. In converters of the
TS2508A, the pulse width varies in a range from 0 to 100%, according to the load current. The ripple voltage produced
by the switching can easily be removed through a filter because the switching frequency remains constant. Therefore,
these converters provide a low-ripple power over broad ranges of input voltage and load current.
RDS(ON) Current Limiting
The current limit threshold is setting by the external resistor (R3) connecting from VCC supply to OCSET pin. The
internal 110uA sink current crossing the resistor sets the voltage at pin of OCSET. When the PWM voltage is less than
the voltage at OCSET, an over-current condition is triggered. Please refer to the formula for setting the minimum
current limit value:
(Normally, The ISW(MAX) setting more than IOUT 1.2A)
Example: ISW=(0.11mA * 2k + 0.08) / 70mΩ = 4.3A – (VIN=12V)
ISW=(0.11mA * 3.3k + 0.08) / 1000mΩ = 4.4A – (VIN=5V)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TS2508CS | 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 |
| TS2508CSRL | 制造商:TSC 制造商全称:Taiwan Semiconductor Company, Ltd 功能描述:2A / 330KHz PWM Buck Converter |
| TS2509 | 制造商:TSC 制造商全称:Taiwan Semiconductor Company, Ltd 功能描述:3A / 500KHz PWM Buck Converter |
| TS2509_13 | 制造商:TSC 制造商全称:Taiwan Semiconductor Company, Ltd 功能描述:3A / 500KHz PWM Buck Converter |
| TS2509CS | 功能描述:直流/直流开关转换器 PWM buck controller 3A 500KHz 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 |
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