Foldback current limiting is provided if the output is shorted to ground. As VFB drops, the buffered current threshold voltage ITHB iS pulled down by clamp ol3 to a lV level set by Q4 and ol6. This reduces the inductor valley current level to one sixth of its maximum value as VFB approaches OV.
TPS61201DRCRG4 on stock Clear transmission and reception in a cellular phone can only be achieved with a low-noise power supply. Therefore, all three LDOs on the MAX8890 feature low output voltage noise, high power-supply rejection ratios, and excellent load and line regulation character- istics. Designed for single-cell Li+ battery applications where a pulsed current demand is required from the
