AAT1171 Description
The AAT1171 SwitchReg, a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family, has been specifically designed to dynamically control the operating voltage of a WCDMA or CDMA power amplifier inside single lithium-ion battery-powered systems. The AAT1171 outputs a voltage between 0.6V and 3.6V, thereby optimizing the amplifier efficiency at both low and high transmit levels.
AAT1171 Key Features
- SwitchReg™
- analog signal from the baseband processor. It can
- deliver 600mA of continuous load current while
- maintaining a low 45µA of no load quiescent current
- external ponents while keeping switching losses
- low. A low resistance MOSFET, typically 230mΩ
- provides a low dropout voltage as the battery input voltage approaches the programmed output voltage and the converter r
AAT1171 Applications
- WCDMA or CDMA PA in Cellular Phones, The AAT1171 feedback and control method gives Smartphones, Feature Phones, etc. excellent load regulation and transient res