ZHCSMP8B November 2020 – March 2021 TPSM5D1806
PRODUCTION DATA
Table 7-3 lists the recommended operating settings for several common output voltages. The table takes into account the minimum and maximum input voltage limits along with timing and current limitations. The table also lists the minimum required effective output capacitance for each output voltage. Also included in this table is the minimum required input voltage and required enable divider resistors to ensure safe turn ON at the minimum input voltage.
Refer to Table 7-1 for the allowable switching frequency. The recommended switching frequency typically results in the highest efficiency. When operating at a switching frequency other than the recommended, consult Section 7.3.3 for the minimum and maximum allowable input voltage.
When setting the switching frequency, both channels of the device are set to the same frequency. When operating in dual output configuration, make sure that both channels can be operated at the desired switching frequency by referencing .
| Output Voltage (V) |
Top Feedback Resistor RFBT(1) (kΩ) |
FSW
(kHz) |
MODE2 Resistor (kΩ) |
Minimum COUT(2) (µF) |
Minimum Input Voltage (V) |
Bottom Enable Resistor RENB(3) (kΩ) |
|---|---|---|---|---|---|---|
| 0.5 | open | 500 | 10.7 | 400 | 4.5 | - (4) |
| 0.8 | 6.04 | 500 | 10.7 | 280 | 4.5 | - |
| 0.9 | 8.06 | 1000 | 17.4 | 265 | 4.5 | - |
| 1.0 | 10.0 | 1000 | 17.4 | 250 | 4.5 | - |
| 1.1 | 12.1 | 1000 | 17.4 | 235 | 4.5 | - |
| 1.2 | 14.0 | 1000 | 17.4 | 220 | 4.5 | - |
| 1.5 | 20.0 | 1000 | 17.4 | 180 | 4.5 | - |
| 1.8 | 26.1 | 1000 | 17.4 | 140 | 4.5 | - |
| 2.5 | 40.2 | 1500 | 28.7 | 100 | 4.5 | - |
| 3.0 | 49.9 | 1500 | 28.7 | 85 | 4.8 | 29.4 |
| 3.3 | 56.2 | 1500 | 28.7 | 75 | 5.3 | 26.1 |
| 4.0 | 69.8 | 2000 | 53.6 | 65 | 7.1 | 18.2 |
| 4.5 | 80.6 | 2000 | 53.6 | 60 | 7.9 | 16.2 |
| 5.0 | 90.9 | 2000 | 53.6 | 50 | 8.8 | 14.3 |
| 5.5 | 100 | 2000 | 53.6 | 45 | 9.6 | 13.0 |