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LM2744 Datenblatt(PDF) 6 Page - Texas Instruments

Teilenummer LM2744
Bauteilbeschribung  Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM2744 Datenblatt(HTML) 6 Page - Texas Instruments

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0.05
0.25
0.45
0.65
0.85
FREQUENCY (MHz)
1.05
0
6
13
19
25
TEMPERATURE (
oC)
-40 -25 -10 5
80 95 110 125
20 35 50 65
9.3
9.4
9.5
9.6
9.7
9.8
9.9
10
TEMPERATURE (
oC)
-40 -25 -10 5
80 95 110 125
20 35 50 65
-0.10
-0.08
-0.06
-0.04
-0.02
0.00
0.02
0.04
0.06
0.08
0.10
VREF = 0.8V
VREF = 1.2V
VREF = 0.6V
20
30
40
50
60
70
80
90
100
VIN = 12V
VIN = 5V
0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0
OUTPUT CURRENT (A)
0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0
OUTPUT CURRENT (A)
20
30
40
50
60
70
80
90
100
VIN = 3.3V
VIN = 12V
VIN = 5V
20
30
40
50
60
70
80
90
100
VIN = 3.3V
VIN = 12V
VIN = 5V
0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0
OUTPUT CURRENT (A)
LM2744
SNVS292E – SEPTEMBER 2004 – REVISED JANUARY 2012
www.ti.com
Typical Performance Characteristics
Efficiency (VOUT = 1.2V, VREF = 0.6V)
Efficiency (VOUT = 2.5V, VREF = 0.8V)
VCC = 3.3V, FSW = 300kHz
VCC = 3.3V, FSW = 300kHz
Output Voltage
Efficiency (VOUT = 3.3V, VREF = 1.2V)
vs
VCC = 5V, FSW = 300kHz
Temperature
BOOT Pin Current
VCC Operating Current plus BOOT Current
vs
vs
Temperature for
Frequency
BOOT Voltage = 3.3V
FDS6898A FET (TA = 25°C)
FSW = 300kHz, FDS6898A FET, No-Load
6
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Product Folder Links: LM2744


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