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LM20143 Fiches technique(PDF) 5 Page - Texas Instruments

No de pièce LM20143
Description  3A, PowerWise짰 Adjustable Frequency Synchronous Buck Regulator
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM20143 Fiches technique(HTML) 5 Page - Texas Instruments

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LM20143
www.ti.com
SNVS528F – OCTOBER 2007 – REVISED NOVEMBER 2011
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise specified: CIN = COUT = 100 µF, L = 1.0 µH (Coilcraft MSS1038), VIN = 5V, VOUT = 1.2V, RLOAD = 1.2Ω,
fSW = 1 MHz, TA = 25°C for efficiency curves, loop gain plots and waveforms, and TJ = 25°C for all others.
Efficiency
Efficiency
vs.
vs.
Load Current (VIN = 5V, fSW = 1.5 MHz)
Load Current (VIN = 3.3V, fSW = 1.5 MHz)
Figure 1.
Figure 2.
Efficiency
Efficiency
vs.
vs.
Load Current (VIN = 5V, fSW = 1.0 MHz)
Load Current (VIN = 3.3V, fSW = 1.0 MHz)
Figure 3.
Figure 4.
Efficiency
Efficiency
vs.
vs.
Load Current (VIN = 5.0V, fSW = 500 kHz)
Load Current (VIN = 3.3V, fSW = 500 kHz)
Figure 5.
Figure 6.
Copyright © 2007–2011, Texas Instruments Incorporated
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