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LM3253 Fiches technique(PDF) 10 Page - Texas Instruments |
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LM3253 Fiches technique(HTML) 10 Page - Texas Instruments |
10 / 26 page 20 s/DIV IOUT 2V/DIV 1A/DIV VCON 2V/DIV VOUT 20 s/DIV 5 mV/DIV VOUT 50 mA/DIV IOUT 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 0 2 4 6 8 10 12 INPUT VOLTAGE (V) 20 s/DIV IOUT 2V/DIV 500 mA/DIV VCON 2V/DIV VOUT 3.0 3.5 4.0 4.5 5.0 5.5 6.0 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 3.00 INPUT VOLTAGE (V) 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 210 220 230 240 250 260 270 280 290 INPUT VOLTAGE (V) LM3253 SNVS791Q – FEBRUARY 2012 – REVISED MAY 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Center-Switching Frequency vs. Supply Voltage Quiescent Current (PFM) vs. Supply Voltage VOUT = 2.5V, IOUT = 700mA, VIN = 3.8V VOUT = 1V, 2.7V < VIN< 5.5V (No Load) Figure 8. Figure 9. Quiescent Current (PWM) vs. Supply Voltage VCON Transient (3G/4G) VOUT = 2.5V, 2.7V < VIN< 5.5V (No Load) VOUT = 0V to 3V, RLOAD = 6.8Ω, VIN = 3.8V Figure 10. Figure 11. VCON Transient (2G) Load Transient in PFM Mode VOUT = 1.4V to 3.4V, RLOAD = 1.9Ω, VIN = 4.2V VOUT = 1V, IOUT = 0mA to 60mA, VIN = 3.6V Figure 12. Figure 13. 10 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated Product Folder Links: LM3253 |
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