The maximum input voltage that can be applied to the TPS2226ADBR is 5.5V, as specified in the datasheet. However, it's recommended to operate the device within the recommended input voltage range of 2.7V to 5.5V for optimal performance and reliability.
To ensure proper power-up and initialization, make sure to follow the recommended power-up sequence: apply the input voltage (VIN) first, followed by the enable signal (EN). Also, ensure that the input voltage is stable and within the recommended range before applying the enable signal.
The EN pin is an active-high enable input that allows the device to be turned on or off. When EN is high, the device is enabled and operates normally. When EN is low, the device is disabled and enters a low-power shutdown mode. Use the EN pin to control the power state of the device, such as in power-saving modes or during system initialization.
The TPS2226ADBR has built-in overcurrent protection (OCP) and short-circuit protection (SCP) features. When an overcurrent or short-circuit condition is detected, the device will limit the output current or shut down to prevent damage. To handle OCP and SCP in your design, ensure that your system can detect and respond to these fault conditions, such as by resetting the device or alerting the user.
For optimal performance and reliability, follow the recommended layout and thermal management guidelines: keep the device away from heat sources, use a solid ground plane, and ensure good thermal conductivity between the device and the PCB. Also, consider using thermal vias and heat sinks to dissipate heat generated by the device.
TPS2226ADBR datasheet
by Texas Instruments
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