The recommended input capacitor value is 1uF to 10uF, depending on the input voltage and output current requirements. A larger capacitor value can help to reduce input voltage ripple and improve output voltage regulation.
To ensure stability, make sure to follow the recommended PCB layout guidelines, use a sufficient output capacitor value, and avoid long output capacitor leads. Additionally, the input voltage should be well-regulated and free of noise.
The maximum output current capability of the MAX889TESA is 300mA. However, the actual output current capability may be limited by the input voltage, output voltage, and thermal considerations.
The MAX889TESA is rated for operation up to 125°C. However, the device's performance and reliability may be affected at high temperatures. It's recommended to derate the output current and ensure proper thermal management to prevent overheating.
The output voltage of the MAX889TESA can be adjusted by connecting a resistive divider network between the output and the ADJ pin. The output voltage can be calculated using the formula: VOUT = 1.25V x (1 + R1/R2), where R1 and R2 are the resistors in the divider network.
MAX889TESA datasheet
by Maxim Integrated Products
