A good PCB layout for the TPS70158PWP involves placing the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a separate power plane for the input voltage and to keep the output voltage traces away from the input voltage traces.
To ensure the stability of the TPS70158PWP output voltage, it's essential to use the recommended output capacitor value and type, and to place it close to the device. Additionally, the input voltage should be stable and within the recommended range, and the device should be operated within its recommended temperature range.
The TPS70158PWP can handle input voltages up to 18V, but it's recommended to operate the device within the recommended input voltage range of 4.5V to 15V for optimal performance and reliability.
The TPS70158PWP is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. It's recommended to operate the device within its recommended temperature range of -40°C to 85°C for optimal performance and reliability.
The output voltage of the TPS70158PWP can be calculated using the formula: Vout = (R1 / R2) * (Vref), where R1 and R2 are the resistors used in the feedback network, and Vref is the internal reference voltage of 1.25V.
TPS70158PWP datasheet
by Texas Instruments
