ZHCS137F March 2011 – October 2017 TPS54622
PRODUCTION DATA.
This example details the design of a high-frequency switching regulator design using ceramic output capacitors. A few parameters must be known to start the design process. These parameters are typically determined at the system level. For this example, begin with the known parameters listed in Table 1.
DESIGN PARAMETER | EXAMPLE VALUE |
---|---|
Output voltage | 3.3 V |
Output current | 6 A |
Transient response 1-A load step | ΔVOUT = 5% |
Input voltage | 12 V nominal, 8 V to 17 V |
Output voltage ripple | 33 mV p-p |
Start input voltage (rising VIN) | 6.528 V |
Stop input voltage (falling VIN) | 6.190 V |
Switching frequency | 480 kHz |