The MAX738ACWE-T requires careful layout and placement to minimize noise and ensure optimal performance. It is recommended to place the device close to the power source, use a solid ground plane, and keep the input and output capacitors close to the device. Additionally, it is recommended to use a Kelvin connection for the sense lines to minimize noise.
The selection of input and output capacitors for the MAX738ACWE-T depends on the specific application requirements. In general, it is recommended to use low-ESR capacitors with a minimum capacitance of 10uF for the input and output. The capacitor selection should also consider the voltage rating, ripple current, and temperature range.
The MAX738ACWE-T has an operating temperature range of -40°C to +125°C. However, the device can be operated at a maximum ambient temperature of 85°C with a derated output current.
The MAX738ACWE-T has a built-in overcurrent protection feature that can be enabled by connecting a resistor between the OCSET pin and the output voltage. The value of the resistor determines the overcurrent threshold. Additionally, an external current sense resistor can be used to monitor the output current and implement overcurrent protection.
The recommended startup sequence for the MAX738ACWE-T is to first apply the input voltage, followed by the enable signal. This ensures that the device is properly biased and configured before the output voltage is enabled.
MAX738ACWE-T datasheet
by Maxim Integrated Products
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