Datasheet MAX1951, MAX1952 (Analog Devices) - 6

1MHz, All Ceramic, 2.6V to 5.5V Input, 2A PWM Step-Down DC-to-DC Regulators Typical Operating Characteristics (continued)
(Typical values are at VIN = VCC = 5V, VOUT = 1.5V, IOUT = 1.5A, and TA = +25°C, unless otherwise noted. See Figure 2.)
SWITCHING WAVEFORMS SOFT-START WAVEFORMS
MAX1951 toc08 MAX1951 toc09 INDUCTOR CURRENT 1A/div VCOMP 2V/div 0A V 0V LX 5V/div OUTPUT VOLTAGE 1V/div OUTPUT VOLTAGE 10mV/div, VIN = VCC = 3.3V VIN = 3.3V AC-COUPLED VOUT = 2.5V VOUT = 1.8V ILOAD = 1.5A ILOAD = 1.5A
MAX1951/MAX1952
200ns/div 1ms/div
SOFT-START WAVEFORMS SHUTDOWN WAVEFORMS
MAX1951 toc10 MAX1951 toc11 0V VCOMP 2V/div VCOMP 2V/div V 0V LX 5V/div OUTPUT VOLTAGE 0.5V/div VIN = VCC = 3.3V V OUTPUT VOLTAGE IN = VCC = 3.3V VOUT = 2.5V V 1V/div OUT = 0.8V ILOAD = 1.5A 0V 1ms/div 20μs/div
SHUTDOWN CURRENT vs. INPUT VOLTAGE
1.0 0.9 MAX1951 toc12 0.8 0.7 0.6 0.5 0.4 0.3 SHUTDOWN CURRENT (mA) 0.2 0.1 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 INPUT VOLTAGE (V)
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