ZHCSPA4 march 2023 TPS548C26
PRODUCTION DATA
TPS548C26 device provides programmable operation mode including the forced CCM operation for tight output voltage ripple and auto-skipping Eco-mode for high light-load efficiency. The TPS548C26 device allows users to select the switching frequency and operation mode through the pin strap detection on MODE pin. Table 7-3 lists the resistor values for the switching frequency and operation mode selections. TI recommends ±1% tolerance resistors with a typical temperature coefficient of ±100 ppm/°C.
The FCCM bit is set during initial power-on and latched after the power conversion is enabled (EN=high). While the device is enabled, a write to FCCM bit is acknowledged but the operation mode does not change until an EN toggle happens.
| MODE Pin to AGND Resistor (k?) | Switching Frequency (kHz) | Operation Mode |
|---|---|---|
| 0 | 600 | FCCM |
| 1.50 | 800 | |
| 2.49 | 1000 | |
| 3.48 | 1200 | |
| 10.5 | 600 | Auto-skipping Eco-mode (DCM) |
| 12.1 | 800 | |
| 14 | 1000 | |
| 16.2 | 1200 | |
| Floating | 800 | FCCM |