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LM3243 Datasheet(PDF) 7 Page - Texas Instruments

Part # LM3243
Description  High-Current Step-Down Converter for 2G/3G/4G RF Power Amplifiers
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3243 Datasheet(HTML) 7 Page - Texas Instruments

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2.5
3.0
3.5
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5.5
2.4
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2.8
3.0
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3.4
3.6
INPUT VOLTAGE (V)
DROPOUT
IOUT= 1.5A
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
VCON (V)
2.5X GAIN
0
200
400
600
800
1000
70
75
80
85
90
95
100
LOAD CURRENT (mA)
VOUT = 1.6V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
VOUT = 3.5V
900
1200 1500 1800 2100 2400 2700
20
30
40
50
60
70
80
90
100
LOAD CURRENT (mA)
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
VOUT = 3.5V
0
20
40
60
80 100 120 140 160
60
65
70
75
80
85
90
95
100
LOAD CURRENT (mA)
VOUT = 1.0V
VOUT = 1.5V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
0
100 200 300 400 500 600 700 800
60
65
70
75
80
85
90
95
100
LOAD CURRENT (mA)
VOUT = 1.6V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
VOUT = 3.5V
LM3243
www.ti.com
SNVS782B – OCTOBER 2010 – REVISED FEBRUARY 2013
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs. Load Current
Efficiency vs. Load Current
VIN = 3.8V, IOUT = 10mA to 150mA
VIN = 3.8V, IOUT = 150mA to 750mA
Figure 1.
Figure 2.
Efficiency vs. Load Current
Efficiency vs. Load Current
VIN = 3.8V, IOUT = 100mA to 1A
VIN = 3.8V, IOUT = 1A to 2.5A
Figure 3.
Figure 4.
Output Voltage vs. Supply Voltage
Output Voltage vs. VCON Voltage
VOUT = 3.4V, VIN = 4.3V down to dropout
VIN = 4.2V, RLOAD = 6.8Ω, 0.16V < VCON < 1.4V
Figure 5.
Figure 6.
Copyright © 2010–2013, Texas Instruments Incorporated
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