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LM3485MMX データシート(PDF) 7 Page - Texas Instruments

部品番号 LM3485MMX
部品情報  Hysteretic PFET Buck Controller
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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LM3485MMX データシート(HTML) 7 Page - Texas Instruments

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LOAD CURRENT (mA)
VIN = 12V
VIN = 4.5V
40
50
60
70
80
90
100
10
100
1000
10000
OUTPUT LOAD CURRENT (mA)
3.3VOUT
1.242VOUT
5.0VOUT
0
1
2
3
4
5
0
200
400
600
800
1000
VIN= 4.5V
VIN= 12V
VIN= 24V
0
20
40
60
80
100
120
140
160
-20 -40
0
20
40 60
80 100 120 140
JUNCTION TEMPERATURE (°C)
OUTPUT LOAD CURRENT (mA)
3.3VOUT
1.242VOUT
0
200
400
600
800
1000
0
4
8
12
16
20
0
2
4
6
8
10
0
50
100
150
T (ns)
CPGATE = 540 pF
CPGATE = 1020 pF
CPGATE = 110 pF
CPGATE = 1800 pF
4
12
20
28
36
3.0
3.5
4.0
5.0
5.5
INPUT VOLTAGE (V)
TJ =125qC
TJ = 25qC
TJ = -40qC
4.5
6.0
LM3485
www.ti.com
SNVS178H – JANUARY 2002 – REVISED DECEMBER 2015
Typical Characteristics (continued)
Unless otherwise specified, TJ = 25°C
VIN = 9 V
Figure 7. PGATE Voltage vs Input Voltage
Figure 8. Typical VPGATE vs Time
VIN = 4.5 V
Figure 10. Operating ON-Time vs Output Load Current
Figure 9. Minimum ON-Time vs Temperature
VIN = 12 V
VOUT = 3.3 V
L = 6.8 µH
Figure 11. Operating ON-Time vs Output Load Current
Figure 12. Efficiency vs Load Current
Copyright © 2002–2015, Texas Instruments Incorporated
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