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LM2854 데이터시트(PDF) 5 Page - Texas Instruments

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부품명 LM2854
상세설명  4A 500 kHz / 1 MHz Synchronous SIMPLE SWITCHER짰 Buck Regulator
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LM2854 데이터시트(HTML) 5 Page - Texas Instruments

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background image
-50
-25
0
25
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75
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125
TEMPERATURE (°C)
400
500
600
700
800
900
1000
1100
1200
500 kHz
1 MHz
20
25
30
35
40
45
50
55
60
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125
TEMPERATURE (°C)
VIN = 3.3V
VIN = 5.0V
1.6
1.7
1.8
1.9
2.0
2.1
-50
-25
0
25
50
75
100
TEMPERATURE (°C)
125
-50
-25
0
25
50
75
100
TEMPERATURE (°C)
1.175
1.200
1.225
1.250
125
-50
-25
0
25
50
75
100
125
TEMPERATURE (°C)
0.795
0.796
0.797
0.798
0.799
0.800
0.801
0.802
2.45
2.65
-50
-25
0
25
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100
TEMPERATURE (°C)
125
2.50
2.55
2.60
LM2854
www.ti.com
SNVS560B – MARCH 2008 – REVISED NOVEMBER 2008
Typical Performance Characteristics
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.
Feedback Voltage vs. Temperature
UVLO Threshold vs. Temperature
Figure 2.
Figure 3.
Soft Start Current vs Temperature
Enable Threshold vs. Temperature
Figure 4.
Figure 5.
Switching Frequency vs. Temperature
PMOS RDS(ON) vs. Temperature
Figure 6.
Figure 7.
Copyright © 2008, Texas Instruments Incorporated
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