Datasheet Texas Instruments LM3205SD-2/NOPB — Ficha de datos

LM3205
www.ti.com SNVS388E – JULY 2005 – REVISED APRIL 2013 LM3205 650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power
Amplifiers
Check for Samples: LM3205 FEATURES DESCRIPTION The LM3205 is a DC-DC converter optimized for
powering RF power amplifiers (PAs) from a single
Lithium-Ion cell, however they may be used in many
other applications. It steps down an input voltage
from 2.7V to 5.5V to a variable output voltage from
0.8V(typ.) to 3.6V(typ.). Output voltage is set using a
VCON analog input for controlling power levels and
efficiency of the RF PA. 1 2 2 MHz (typ.) PWM Switching Frequency
Operates from a Single Li-Ion Cell (2.7V to
5.5V)
Variable Output Voltage (0.8V to 3.6V)
Fast Output Voltage Transient (0.8V to 3.6V in
20Вµs)
650mA Maximum Load Capability
High Efficiency (96% Typ at 4.2VIN, 3.4VOUT at
400mA) from Internal Synchronous
Rectification
Current Overload Protection
Thermal Overload Protection
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