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LM3253 Fiches technique(PDF) 9 Page - Texas Instruments

No de pièce LM3253
Description  High-Current Step-Down Converter
Download  25 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM3253 Fiches technique(HTML) 9 Page - Texas Instruments

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INPUT VOLTAGE (V)
DROPOUT
IOUT= 1.5A
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VCON (V)
2.5X GAIN
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LOAD CURRENT (mA)
VOUT = 1.6V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
VOUT = 3.5V
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0
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LOAD CURRENT (mA)
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
VOUT = 3.5V
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LOAD CURRENT (mA)
VOUT = 1.0V
VOUT = 1.5V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
0
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LOAD CURRENT (mA)
VOUT = 1.6V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
VOUT = 3.5V
LM3253
www.ti.com
SNVS791Q – FEBRUARY 2012 – REVISED MAY 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 2.
Figure 3.
Efficiency vs. Load Current
Efficiency vs. Load Current
VIN = 3.8V, IOUT = 100mA to 1A
VIN = 5V, IOUT = 1A to 2.5A
Figure 4.
Figure 5.
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 6.
Figure 7.
Copyright © 2012–2013, Texas Instruments Incorporated
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