What output voltages do LDOs provide?
LDOs are available with either an adjustable or fixed output voltage. To assure regulation, the output voltage must be less than the minimum input voltage less the dropout voltage. Typically, fixed-output types have an output voltage that has been pre-set between 1V and 5V, with a tolerance of ±2% to ±6%. Adjustable-output LDOs have an output voltage that”s set with two external resistors, also typically between 1V and 5V. Some LDO families are available in a full range of output voltages in 100- or 50-mV steps, for example, 2 to 6 V in 100-mV steps. This wide range of output voltages is made possible by laser-trimming the ICs during their manufacture.
Related Questions
- I checked the output voltage with my volt meter and the driver puts out weird voltages: 17, 0.6, 3, 29, etc. Is something wrong with the driver?
- Can I use the sense pin of the LP3964, LP3965, or LP3966 fixed-voltage LDOs to adjust the output voltage?
- When setting the output voltage for the regulator, what voltages should appear at FB1 and FB2?
