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LM3489-Q1 数据表(PDF) 5 Page - Texas Instruments

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部件名 LM3489-Q1
功能描述  Hysteretic PFET Buck Controller With Enable Pin
Download  25 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LM3489-Q1 数据表(HTML) 5 Page - Texas Instruments

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background image
-40 -20
0
20
40
60
80 100
140
JUNCTION TEMPERATURE (°C)
120
2
6
10
14
18
IOUT = 0
VIN = 12V
-40 -20
0
20
40
60
80 100
140
JUNCTION TEMPERATURE (°C)
120
4.5
5
5.5
6
6.5
VFB = 1.5V
4.5V
18V
35V
1.214
1.224
1.234
1.244
1.254
1.264
-40 -20
0
20
40
60
80 100
140
JUNCTION TEMPERATURE (°C)
120
IOUT = 200 mA
18V
35V
12V
4.5V
0
10
20
30
40
2
6
10
14
16
VIN (V)
IOUT = 0
TJ = 25°C
0
10
20
30
40
0
3
6
9
12
15
VIN (V)
VFB = 1.5V, VEN = 5.5V
-40°C
25°C
125°C
0
10
20
30
40
0
100
200
300
400
500
VIN (V)
VFB = 1.5V, VEN = 5.5V
-40°C
25°C
125°C
LM3489
LM3489-Q1
www.ti.com
SNVS443B – MAY 2006 – REVISED FEBRUARY 2013
Typical Performance Characteristics
All curves taken at VIN = 12V with configuration in Design Information. TJ = 25°C, unless otherwise specified.
Quiescent Current vs Input Voltage
Shutdown Current vs Input Voltage
Figure 2.
Figure 3.
Feedback Voltage vs Temperature
Feedback Voltage Hysteresis vs Input Voltage
Figure 4.
Figure 5.
Feedback Voltage Hysteresis vs Temperature
Current Limit ADJ Current vs Temperature
Figure 6.
Figure 7.
Copyright © 2006–2013, Texas Instruments Incorporated
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