Datasheet LTC1875 (Analog Devices) - 5

LTC1875
W U TYPICAL PERFOR A CE CHARACTERISTICS Load Step Response (Pulse Skipping Mode) Pulse Skipping Mode Operation
IL VOUT 200mA/DIV 100mV/DIV I VOUT L 1A/DIV 100mV/DIV ITH SW 1V/DIV 5V/DIV 100µs/DIV 1875 G09 1µs/DIV 1875 G10 VIN = 3.6V CIN = 22µF VIN = 4.2V CIN = 22µF VOUT = 1.5V COUT = 47µF VOUT = 2.5V COUT = 47µF L = 6.8µH ILOAD = 200mA to 1700mA L = 6.8µH ILOAD = 50mA
Burst Mode Operation Soft-Start with Shorted Output
IL 200mA/DIV IVIN 500mA/DIV VOUT 100mV/DIV RUN/SS 1V/DIV SW 5V/DIV 25µs/DIV 5ms/DIV 1875 G12 1875 G11 V VIN = 3.6V CIN = 22µF IN = 4.2V CIN = 22µF V VOUT = 0V COUT = 47µF OUT = 2.5V COUT = 47µF L = 6.8µH I L = 6.8µH ILOAD = 0A LOAD = 50mA 1875f 5