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LM3489 Fiches technique(PDF) 6 Page - Texas Instruments

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No de pièce LM3489
Description  Hysteretic PFET Buck Controller with Enable Pin
Download  23 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM3489 Fiches technique(HTML) 6 Page - Texas Instruments

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LOAD CURRENT (A)
VIN = 12V
VIN = 6V
VIN = 24V
0
40
0
100
200
300
400
500
600
VIN (V)
10
20
30
L = 10 PH
L = 15 PH
L = 22 PH
VOUT = 3.3V
IOUT = 500 mA
Cff = 100 pF
-40
-10
20
50
80
110
140
JUNCTION TEMPERATURE, TJ (°C)
40
60
80
100
120
140
160
VIN = 4.5V
VIN = 24V
VIN = 12V
-40
-10
20
50
80
110
140
JUNCTION TEMPERATURE, TJ (
oC)
100
150
200
250
300
VIN = 12V
VIN = 4.5V
VIN = 24V
-40
-10
20
50
80
110
140
JUNCTION TEMPERATURE, TJ (°C)
8
8.5
9
9.5
10
VIN = 12V
VIN = 4.5V
VIN = 24V
VIN = 35V
0
40
3
3.5
4
4.5
5
5.5
6
VIN (V)
10
20
30
-40°C
25°C
125°C
LM3489
SNVS443A – MAY 2006 – REVISED JUNE 2008
www.ti.com
Typical Performance Characteristics (continued)
All curves taken at VIN = 12V with configuration in typical application circuit shown in Application Information section of this
datasheet. TJ = 25°C, unless otherwise specified.
Current Limit One Shot OFF Time
VIN - VPGATE
vs.
vs
Temperature
VIN
Minimum ON Time
Minimum ON Time
vs
vs
Temperature
Temperature
(Normal Operation)
(Current Limit)
Operating Frequency
Operating ON Time vs
vs
Load Current
Input Voltage
6
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Product Folder Links: LM3489


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