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LM2744 Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM2744
Description  Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM2744 Datasheet(HTML) 5 Page - National Semiconductor (TI)

 
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Typical Performance Characteristics
Efficiency (V
OUT = 1.2V, VREF = 0.6V)
V
CC = 3.3V, FSW = 300kHz
Efficiency (V
OUT = 2.5V, VREF = 0.8V)
V
CC = 3.3V, FSW = 300kHz
20106040
20106057
Efficiency (V
OUT = 3.3V, VREF = 1.2V)
V
CC = 5V, FSW = 300kHz
Output Voltage vs Temperature
20106041
20106090
V
CC Operating Current plus BOOT Current vs Frequency
FDS6898A FET (T
A = 25˚C)
BOOT Pin Current vs Temperature for
BOOT Voltage = 3.3V
F
SW = 300kHz, FDS6898A FET, No-Load
20106045
20106043
www.national.com
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