Datasheet Texas Instruments LM3242TMX/NOPB — 数据表

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SNOSB48E – OCTOBER 2011 – REVISED AUGUST 2015 LM3242 6-MHz, 750-mA Miniature Adjustable Step-Down DC-DC Converter With Auto
Bypass for RF Power Amplifiers
1 Features 3 Description The LM3242 is a DC-DC converter optimized for
powering RF power amplifiers (PAs) from a single
lithium-ion cell; however, it may be used in many
other applications. It steps down an input voltage
from 2.7 V to 5.5 V to an adjustable output voltage
from 0.4 V to 3.6 V. Output voltage is set using a
VCON analog input for controlling power levels and
efficiency of the RF PA. 1 2.7-V to 5.5-V Input Voltage Operating From
Single Li-Ion Cell
6-MHz (typical) PWM Switching Frequency
0.4-V to 3.6-V Adjustable Output Voltage
750-mA Maximum Load Capability
(up to 1 A in Bypass)
High Efficiency (95% typical at 3.9 VIN,
3.3 VOUT at 500 mA) …