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LM3485MM Datasheet(PDF) 7 Page - Texas Instruments

Part # LM3485MM
Description  Hysteretic PFET Buck Controller
PDF  23 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM3485MM Datasheet(HTML) 7 Page - Texas Instruments

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INPUT VOLTAGE (V)
0
50
100
150
200
250
300
4
12
20
28
36
0
50
100
150
200
250
300
@Cff=100p
@no Cff
@no Cff
@Cff=100p
Ripple Voltage
Operating Frequency
0
20
40
60
80
4
12
20
28
36
INPUT VOLTAGE (V)
L=10PH
L=15PH
L=22PH
400
OUTPUT CURRENT LOAD (mA)
12VIN / 3.3VOUT
4.5VIN / 1.242VOUT
12VIN / 1.242VOUT
4.5VIN / 3.3VOUT
12VIN / 5.0VOUT
300
200
100
0
200
0
400
600
800
1000
LM3485
www.ti.com
SNVS178G – JANUARY 2002 – REVISED FEBRUARY 2013
Typical Performance Characteristics (continued)
Unless otherwise specified, TJ = 25°C
Output Ripple Voltage
vs
Operating Frequency vs
Input Voltage
Output Load Current
(VOUT = 3.3V, IOUT = 1A, COUT(ESR) = 80mΩ, Cff = 100pF)
(L = 22µH, COUT(ESR) = 45mΩ, Cff = 100pF)
Feed-Forward Capacitor (Cff) Effect
(VOUT = 3.3V, L = 22µH, IOUT = 500mA)
Copyright © 2002–2013, Texas Instruments Incorporated
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Product Folder Links: LM3485



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