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LM2854 Folha de dados(PDF) 7 Page - Texas Instruments

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Nome de Peças LM2854
Descrição Electrónicos  4A 500 kHz / 1 MHz Synchronous SIMPLE SWITCHER짰 Buck Regulator
Download  30 Pages
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

LM2854 Folha de dados(HTML) 7 Page - Texas Instruments

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LOAD CURRENT (A)
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VIN = 3.3V
VIN = 5.0V
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LOAD CURRENT (A)
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VIN = 3.3V
VIN = 5.0V
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LOAD CURRENT (A)
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VIN = 3.3V
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LOAD CURRENT (A)
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VIN = 4.0V
VIN = 5.0V
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VIN = 5.0V
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VIN = 3.3V
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LM2854
www.ti.com
SNVS560B – MARCH 2008 – REVISED NOVEMBER 2008
Typical Performance Characteristics (continued)
Unless otherwise specified, the following conditions apply: VIN = PVIN = AVIN = EN = 5.0V, CIN is 47 µF 10V X5R ceramic
capacitor, LO is from TDK SPM6530T family; TAMBIENT = 25°C for efficiency curves, bode plots and waveforms, and TJ = 25°C
for all others.
LM2854 1 MHz Efficiency vs.
LM2854 1 MHz Efficiency vs.
IOUT VOUT = 0.8V, LO = 0.47 µH, 3.3 mΩ DCR
IOUT VOUT = 2.5V, LO = 1.0 µH, 7.1 mΩ DCR
Figure 14.
Figure 15.
LM2854 1 MHz Efficiency vs.
LM2854 1 MHz Efficiency vs.
IOUT VOUT = 1.2V, LO = 0.68 µH, 4.9 mΩ DCR
IOUT VOUT = 3.3V, LO = 1.0 µH, 7.1 mΩ DCR
Figure 16.
Figure 17.
LM2854 1 MHz Efficiency vs.
LM2854 500 kHz Efficiency vs.
IOUT VOUT = 1.8V, LO = 1.0 µH, 7.1 mΩ DCR
IOUT VOUT = 0.8V, LO = 1.0 µH, 7.1 mΩ DCR
Figure 18.
Figure 19.
Copyright © 2008, Texas Instruments Incorporated
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