LM3253TME/NOPB Description
A single lithium-ion cell can power several multi-mode 2G, 3G, and 4G RF power amplifiers (PAs) using the DC-DC converter LM3253TME/NOPB. The LM3253 reduces an input voltage from 2.7V to 5.5V to an output voltage that is dynamically adjustable between 0.4V and 3.6V. The output voltage is set by a VCON analog input, which modifies the output voltage to guarantee effective performance at all RF PA power levels. The LM3253TME/NOPB is designed for use with USB datacards.
LM3253TME/NOPB Features
16-bump Thin DSBGA package
3A maximum load current in PWM mode
Current and thermal overload protection
ACB reduces inductor requirements and size
Modulated switching frequency to aid Rx band compliance
LM3253TME/NOPB Applications
