JAJSIN7 February 2020 TPS59632-Q1
PRODUCTION DATA.
The OSR level selection is based on the load-transient performance and amount of actual output capacitance to get the best performance with least output capacitance. The suggested method is to begin with OSR OFF and perform the load transient test based on a calculated amount of output capacitance. If the overshoot is higher then specified voltage limits, the OSR can be enabled by lowering the OSR threshold level. If the overshoot is acceptable with OSR OFF, then e reduction in output capacitance can be made and then an appropriate OSR level can be selected to meet the load transient specification. While reducing the output capacitance, other considerations like output ripple, undershoot, stability, and so on needs to be considered simultaneously.
Table 10 shows the available OSR selections.
SELECTION RESISTOR
ROSR (kΩ) |
OSR THRESHOLD LEVEL
(mV) |
---|---|
20 | 100 |
24 | 150 |
30 | 200 |
39 | 250 |
56 | 300 |
75 | 400 |
100 | 500 |
150 | OFF |