The recommended layout and placement for the TPS3838J25DBVR involves placing the device close to the power source, using a solid ground plane, and keeping the input and output capacitors close to the device. Additionally, it is recommended to use a low-ESR capacitor for the input capacitor and to minimize the distance between the device and the load.
The choice of input and output capacitors for the TPS3838J25DBVR depends on the specific application requirements. In general, a low-ESR capacitor with a value of 1-10uF is recommended for the input capacitor, while a capacitor with a value of 1-22uF is recommended for the output capacitor. The capacitor selection should also consider the voltage rating, temperature range, and ripple current rating.
The maximum ambient temperature range for the TPS3838J25DBVR is -40°C to 125°C. However, the device can operate at a junction temperature of up to 150°C.
The power dissipation of the TPS3838J25DBVR can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current. The power dissipation should be within the recommended maximum power dissipation rating of 1.5W.
The recommended input voltage range for the TPS3838J25DBVR is 2.7V to 5.5V. However, the device can operate with an input voltage as low as 2.5V, but the output voltage regulation may be affected.
TPS3838J25DBVR datasheet
by Texas Instruments
