Texas Instruments recommends using a ceramic capacitor with an X5R or X7R dielectric, as they provide a stable capacitance over a wide temperature range.
To minimize noise and EMI, it is recommended to follow a star-ground configuration, keep the input and output capacitors close to the device, and use a solid ground plane. Additionally, avoid routing high-frequency signals near the device's sensitive nodes.
The TPS62227DDCR is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the device's power dissipation. Consult the datasheet and thermal design guidelines for more information.
Yes, the TPS62227DDCR is suitable for battery-powered devices due to its low quiescent current (IQ) and high efficiency. However, ensure that the device is properly bypassed and filtered to minimize noise and ripple.
The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESL) / (Cout * fsw), where ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency. Consult the datasheet for more information.
TPS62227DDCR datasheet
by Texas Instruments
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