AATIAN19 Datasheet, PDF (5/6 Pages) SiGe Semiconductor, Inc. – AAT1145 EVAL:1.5 MHz, 1.2A Step-Down

EV136
AAT1145 EVAL:1.5 MHz, 1.2A Step-Down
DC/DC Converter with Low Quiescent Current
Ch1
(2V/div)
Ch2
(10mV/div)
Ch3
(500mA/div)
Time (1μs/div)
Figure 7: Full Load Switching Waveforms
(V_IN = 3.6V, V_OUT = 1.8V, 1.2A Load;
Ch1: (SW) LX pin, Ch2: V_OUT (AC),
Ch3: LX I_INDUCTOR).
Ch1
(2V/div)
Ch2
(2V/div)
Ch3
(500mA/div)
Time (400μs/div)
Figure 8: Startup Waveforms
V_IN = 3.6V, V_OUT = 1.8V, 3Ω Load;
Ch1: EN, Ch2: V_OUT, Ch3: I_IN).
EV-136.2007.08.1.1
5