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LM3489MM 데이터시트(PDF) 7 Page - Texas Instruments

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부품명 LM3489MM
상세설명  Hysteretic PFET Buck Controller With Enable Pin
Download  25 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LM3489MM 데이터시트(HTML) 7 Page - Texas Instruments

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VOUT RIPPLE
(50 mVac/Div)
Switch Node Voltage, VD1 (10V/Div)
IL (1A/Div)
TIME (2 Ps/DIV)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
OUTPUT CURRENT (A)
40
50
60
70
80
90
100
L = 22 PH
R1 = 60.7k
R2 = 20k
VIN = 24V
VIN = 12V
0.0
0.2
0.4
0.6
0.8
1.0
1.2
OUTPUT CURRENT (A)
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
VIN = 24V
VIN = 12V
L = 22 PH
R1 = 60.7k
R2 = 20k
0.0
0.2
0.4
0.6
0.8
1.0
1.2
OUTPUT CURRENT (A)
40
50
60
70
80
90
100
VIN = 4.5V
VIN = 24V
VIN = 12V
0.0
0.2
0.4
0.6
0.8
1.0
1.2
OUTPUT CURRENT (A)
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
VIN = 4.5V
VIN = 24V
VIN = 12V
LM3489
LM3489-Q1
www.ti.com
SNVS443B – MAY 2006 – REVISED FEBRUARY 2013
Typical Performance Characteristics (continued)
All curves taken at VIN = 12V with configuration in Design Information. TJ = 25°C, unless otherwise specified.
Efficiency vs Load Current
VOUT Regulation vs Load Current
(VOUT = 3.3V, L = 22µH)
(VOUT = 3.3V, L = 22µH)
Figure 14.
Figure 15.
Efficiency vs Load Current (VOUT = 5V, L = 22µH)
VOUT Regulation vs Load Current (VOUT = 5V, L = 22µH)
Figure 16.
Figure 17.
Continuous Mode Operation
Power Up (No Load, CADJ = 1nF)
(VIN = 12V, VOUT = 3.3 V, IOUT = 500mA)
Figure 18.
Figure 19.
Copyright © 2006–2013, Texas Instruments Incorporated
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Product Folder Links: LM3489 LM3489-Q1


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