ZHCSSO4E September 2010 – September 2024 TPS74801-Q1
PRODUCTION DATA
R1 and R2 can be calculated for any output voltage using the formula shown in Figure 7-1. See Table 7-2 for sample resistor values of common output voltages. To achieve the maximum accuracy specifications, R2 must be ≤ 4.99 k?.
| R1 (k?) | R2 (k?) | VOUT (V) |
|---|---|---|
| Short | Open | 0.8 |
| 0.619 | 4.99 | 0.9 |
| 1.13 | 4.53 | 1 |
| 1.37 | 4.42 | 1.05 |
| 1.87 | 4.99 | 1.1 |
| 2.49 | 4.99 | 1.2 |
| 4.12 | 4.75 | 1.5 |
| 3.57 | 2.87 | 1.8 |
| 3.57 | 1.69 | 2.5 |
| 3.57 | 1.15 | 3.3 |
| CSS | SOFT-START TIME (Legacy Chip) | SOFT-START TIME (New Chip) |
|---|---|---|
| Open | 0.1 ms | 0.25 ms |
| 270 pF | 0.5 ms | 0.4 ms |
| 560 pF | 1 ms | 0.8 ms |
| 2.7 nF | 5 ms | 4.1 ms |
| 5.6 nF | 10 ms | 8.5 ms |
| 0.01 μF | 18 ms | 15 ms |