SNVSB83B June 2019 – January 2020 LP8867-Q1 , LP8869-Q1
PRODUCTION DATA.
The LP886x-Q1 DC-DC converter has an internal compensation network to ensure the stability. There's no external component needed for compensation. It's strongly recommended that the inductance value and the boost input and output capacitors value follow the requirement of Table 2. Also, the DC-DC internal parameters are chosen automatically according to the selected switching frequency (see Table 2) to ensure stability.
| RANGE | FREQUENCY (kHz) | TYPICAL
INDUCTANCE (µH) |
TYPICAL BOOST INPUT
AND OUTPUT CAPACITORS (µF) |
MINIMUM SWITCH
OFF TIME (ns)(2) |
BLANK
TIME (ns) |
|---|---|---|---|---|---|
| 1 | 300 to 480 | 22 or 33 | 2 ×10 (cer.) + 33 (electr.) | 150 | 95 |
| 2 | 480 to 1150 | 15 | 10 (cer.) + 33 (electr.) | 60 | 95 |
| 3 | 1150 to 1650 | 10 | 3 × 10 (cer.) | 40 | 95 |
| 4 | 1650 to 2200 | 4.7 or 10 | 3 × 10 (cer.) | 40 | 70 |