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MAX16909RATE Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX16909RATE Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 18 page ����������������������������������������������������������������� Maxim Integrated Products 5 MAX16909 36V, 220kHz to 1MHz Step-Down Converter with Low Operating Current Typical Operating Characteristics (VSUP = VSUPSW = VEN = 14V, VOUT = 1.8V, R1 = 80.6kΩ, R2 = 100kΩ, TA = +25NC (Figure 4), unless otherwise noted.) SWITCHING FREQUENCY vs. ILOAD (1.8V/400kHz) 391 392 393 394 395 396 397 398 399 400 390 ILOAD (A) 2.5 2.0 1.5 1.0 0.5 0 3.0 VIN = 14V SWITCHING FREQUENCY vs. RFOSC RFOSC (kI) 100 90 70 80 40 50 60 30 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 20 110 VIN = 14V 0.01 0.001 0.0001 0 0.1 EFFICIENCY vs. LOAD CURRENT VIN = 14V LOAD CURRENT (A) 10 20 30 40 50 60 70 80 90 100 0 1.8V 3.3V 5V 8V D1: B360B-13-F, DIODES L1: DRA125-150-R, COOPER BUSSMANN EFFICIENCY vs. LOAD CURRENT VIN = 14V LOAD CURRENT (A) 0 0.5 1.5 1.0 2.5 2.0 3.0 10 20 30 40 50 60 70 80 90 100 0 DIODE: B360B-13-F FROM DIODES INDUCTOR: DRA125-150-R, COOPER BUSSMANN 1.8V 3.3V 5V 8V MAX16909 toc02 VIN VOUT VPGOOD 5V/div 5V/div 1V/div 0V 0V 0V 2ms/div STARTUP INTO NO LOAD (1.8V/400kHz) STARTUP INTO HEAVY LOAD (1.8V/400kHz) MAX16909 toc01 VIN VOUT ILOAD VPGOOD 5V/div 5V/div 1V/div 2A/div 0V 0V 0A 0V 2ms/div 0.6I RESISTIVE LOAD |
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