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LM3668 Arkusz danych(PDF) 8 Page - Texas Instruments |
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LM3668 Arkusz danych(HTML) 8 Page - Texas Instruments |
8 / 26 page LOAD (mA) 100 90 80 70 60 50 40 30 20 10 0 0 1 10 100 1000 VIN = 5.5V VIN =5.0V VIN = 3.6V VIN = 2.7V VIN VOUT_AC 100 Ps/DIV 4.5V 3.7V 100 mV/DIV 5V/DIV 5V/DIV SW2 SW1 LOAD (mA) 100 90 80 70 60 50 40 30 20 10 0 0 1 10 100 1000 VIN = 5.5V VIN = 5.0V VIN = 3.6V VIN = 2.7V LOAD (mA) 100 90 80 70 60 50 40 30 20 10 0 0 1 10 100 1000 VIN = 5.5V VIN = 5.0V VIN = 3.6V VIN = 2.7V LOAD (mA) 100 90 80 70 60 50 40 30 20 10 0 0 1 10 100 1000 VIN = 5.5V VIN = 5.0V VIN = 3.6V VIN = 2.5V VIN = 2.7V LOAD (mA) 100 90 80 70 60 50 40 30 20 10 0 0 1 10 100 1000 VIN = 5.5V VIN = 3.6V VIN = 2.7V VIN = 5V LM3668 SNVS449L – JUNE 2007 – REVISED MARCH 2011 www.ti.com Typical Performance Characteristics (continued) Typical Application Circuit (Figure 1): VIN = 3.6V, L = 2.2µH, CIN = 10µF, COUT = 22µF (1), T A = 25°C , unless otherwise stated. Efficiency at VOUT = 3.4V Efficiency at VOUT = 4.5V (Auto Mode) (Forced PWM Mode) Figure 18. Figure . Efficiency at VOUT = 4.5V Efficiency at VOUT = 5.0V (Auto Mode) (Forced PWM Mode) Figure 19. Figure 20. Efficiency at VOUT = 5.0V Line Transient in Buck Mode (Auto Mode) ( VOUT = 3.4V, Load = 500mA) Figure 21. Figure 22. 8 Submit Documentation Feedback Copyright © 2007–2011, Texas Instruments Incorporated Product Folder Links: LM3668 |
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