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LM3485 Datasheet(PDF) 4 Page - Texas Instruments

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Part # LM3485
Description  Hysteretic PFET Buck Controller
Download  22 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3485 Datasheet(HTML) 4 Page - Texas Instruments

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-40
JUNCTION TEMPERATURE (qC)
VIN=4.5V
VIN=12V
VIN=35V
-20
0
20
40
60
80 100 120 140
4.5
5.0
5.5
6.0
6.5
8
9
10
11
12
-40 -20
0
20
40
60
80 100 120 140
VIN = 12V
VIN = 4.5V
JUNCTION TEMPERATURE (°C)
90
95
100
105
110
4
12
20
28
36
INPUT VOLTAGE (V)
TJ = 25qC
-40 -20
0
20
40
60
80 100 120 140
4
6
8
10
12
14
JUNCTION TEMPERATURE (°C)
100
150
200
250
300
350
400
4
12
20
28
36
INPUT VOLTAGE (V)
Tj = -40qC
Tj = 25qC
Tj = 125qC
VIN=4.5V
VIN=35V
JUNCTION TEMPERATURE (°C)
VIN=12V
-40 -20
0
20
40
60 80 100 120 140
1.225
1.240
1.235
1.230
1.245
1.250
1.255
LM3485
SNVS178F – MAY 2004 – REVISED SEPTEMBER 2009
www.ti.com
Typical Performance Characteristics
Unless otherwise specified, TJ = 25°C
Quiescent Current
vs
Feedback Voltage
Input Voltage
vs
(FB = 1.5V)
Temperature
Hysteresis Voltage
Hysteresis Voltage
vs
vs
Input Voltage
Temperature
Current Limit ADJ Current
Current Limit One Shot OFF Time
vs
vs.
Temperature
Temperature
4
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Copyright © 2004–2009, Texas Instruments Incorporated
Product Folder Links: LM3485


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