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LM3489 Fiches technique(PDF) 8 Page - Texas Instruments

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No de pièce LM3489
Description  Hysteretic PFET Buck Controller with Enable Pin
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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LM3489 Fiches technique(HTML) 8 Page - Texas Instruments

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VOUT RIPPLE
(20 mVac/Div)
Switch Node Voltage, VD1 (10V/Div)
IL (500 mA/Div)
TIME (4 Ps/DIV)
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.
Discontinuous Mode Operation
Load Transient
(VIN = 12V, VOUT =3.3 V, IOUT = 50mA)
(VOUT = 3.3 V, 50 mA - 500 mA Load)
Enable Transient
Shutdown Transient
(VOUT = 3.3 V, 500 mA Loaded)
(VOUT = 3.3 V, 500 mA Loaded)
Simplified Functional Block Diagram
8
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Copyright © 2006–2008, Texas Instruments Incorporated
Product Folder Links: LM3489


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