SLUSCE3C October 2015 – August 2020 TPS2549-Q1
PRODUCTION DATA
Based on the known total resistance, Table 9-1 shows the calculation.
CALCULATION EQUATION(1) | CALCULATED VALUE | ASSEMBLY VALUE | |
---|---|---|---|
V(DC) (V) without load | 5 | ||
R(G) (kΩ) | 6.8 | 6.8 | |
R(total) (Ω) | 0.42 | ||
G(CS) (mA/A) | 0.075 | ||
R(FA) (kΩ) | R(FA) = R(total) / G(CS) | 5.6 | 5.6 |
V(FB) (V) | 0.75 | ||
R(FB) (kΩ) | R(FB) = [V(DC) / (V(FB) / R(G))] – R(G) – R(FA) | 32.93 | 33 |
V(CS) (V)(2) | VCS = (V(FB) / R(G)) × (R(G) + R(FB)) | 4.39 | |
Maximum IOS (A) at 20 kΩ | 2.84 | ||
V(DC,max) output (V)(3) | V(DC,max) = 5 + I(OS,max) × G(CS,max) × R(FA) | 6.25 | |
C(OUT) (µF) | 2 × 47 | ||
C(COMP) (nF)(4) | C(COMP) ≥ 3 × G(CS) × C(OUT) | ≥21.15 | 22 |