TEXAS INSTRUMENTS TPS7A3401EVM-042 评估模块, TPS7A3401EVM-042
The is an evaluation module and reference design for TPS7A3401 negative voltage, low dropout DC/DC regulator with an adjustable output voltage for loads up to 200mA. This particular evaluation module configuration contains a single linear regulator with internal thermal and current limit shutdowns, and enable disable circuitry in a 3mmx5mm, MSOP 8, thermally enhanced PowerPAD package. The regulator, including external components, is capable of delivering up to -200mA to the load, depending on the input output power dissipation, at an operating input voltage down to -20V. The evaluation module output voltage is adjustable by an external resistor divider from -1.2V to -17V. The resistor divider is preset to provide VOUT approximately equal to -15V. The TPS7A3401 linear regulator is suitable for cost effective, post dc/dc converter regulation. By filtering out the output voltage ripple inherent to dc/dc switching conversion, increased system performance is provided.
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- Input voltage range from -3V to -20V
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- Adjustable output from -1.18V to -17V Pre set to -15V
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- 500mV at 100mA dropout voltage
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- Stable with ceramic capacitors greater then 10uF
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- CMOS logic level compatible enable pin
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- Fixed current limit
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- Thermal shutdown Protection
It is important to operate this EVM within the input voltage range of -22V to 0.3V and the output voltage range of -20V to -3V. Exceeding the specified input range may cause damage to the EVM.