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LM3489 Fiches technique(PDF) 7 Page - Texas Instruments |
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LM3489 Fiches technique(HTML) 7 Page - Texas Instruments |
7 / 23 page VOUT RIPPLE (50 mVac/Div) Switch Node Voltage, VD1 (10V/Div) IL (1A/Div) TIME (2 Ps/DIV) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 OUTPUT CURRENT (A) 40 50 60 70 80 90 100 L = 22 PH R1 = 60.7k R2 = 20k VIN = 24V VIN = 12V 0.0 0.2 0.4 0.6 0.8 1.0 1.2 OUTPUT CURRENT (A) -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 VIN = 24V VIN = 12V L = 22 PH R1 = 60.7k R2 = 20k 0.0 0.2 0.4 0.6 0.8 1.0 1.2 OUTPUT CURRENT (A) 40 50 60 70 80 90 100 VIN = 4.5V VIN = 24V VIN = 12V 0.0 0.2 0.4 0.6 0.8 1.0 1.2 OUTPUT CURRENT (A) -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 VIN = 4.5V VIN = 24V VIN = 12V LM3489 www.ti.com SNVS443A – MAY 2006 – REVISED JUNE 2008 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. Efficiency VOUT Regulation vs vs Load Current Load Current (VOUT = 3.3V, L = 22µH) (VOUT = 3.3V, L = 22µH) Efficiency VOUT Regulation vs vs Load Current Load Current (VOUT = 5V, L = 22µH) (VOUT = 5V, L = 22µH) Power Up Continuous Mode Operation (No Load, CADJ = 1nF) (VIN = 12V, VOUT = 3.3 V, IOUT = 500mA) Copyright © 2006–2008, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM3489 |
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