LM3218
Overview
The LM3218 is a DC-DC converter with inductor which is optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell. It steps down an input voltage in the range from 2.7V to 5.5V to an adjustable output voltage of 0.8V to 3.6V.
- Includes 2.6 µH Inductor in very small form factor (3mm x * * * * * * * *
- 2.5mm x 1.2mm) 2 MHz (typ.) PWM Switching Frequency Operates from a single Li-Ion cell (2.7V to 5.5V) Adjustable Output Voltage (0.8V to 3.6V) Fast Output Voltage Transient (0.8V to 3.4V in 25 µs typ.) 650 mA Maximum load capability High Efficiency (95% typ. at 3.9 VIN, 3.4 VOUT at 400 mA) 8-pin LTCC Package Current Overload Protection Thermal Overload Protection
