手机中各部分电路所需LDO如何选择
Selecting LDO Linear Regulators for Cellphone Designs | |
|Abstract: Low-dropout LDO linear regulators are used to power |
|many sections of a typical cellular handset. However, these |
|baseband, RF, and audio sections have different requirements |
|that influence which LDO is most appropriate. After discussion |
|of the specific requirements, different LDOs are recommended. |
|Also, some LDO design techniques are briefly discussed to |
|demonstrate how an LDO may be optimized for a specific level of |
|performance. |
|Cellular phone designs require linear regulators with |
|low-dropout, low-noise, high PSRR, low quiescent current (Iq), |
|and low-cost. They need to deliver a stable output and use |
|sma……
