LTC1875 Просмотр технического описания (PDF) - Linear Technology
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LTC1875 Datasheet PDF : 20 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LTC1875
Load Step Response (Pulse
Skipping Mode)
Pulse Skipping Mode Operation
VOUT
100mV/DIV
IL
1A/DIV
ITH
1V/DIV
VIN = 3.6V
VOUT = 1.5V
L = 6.8µH
100µs/DIV
1875 G09
CIN = 22µF
COUT = 47µF
ILOAD = 200mA to 1700mA
IL
200mA/DIV
VOUT
100mV/DIV
SW
5V/DIV
VIN = 4.2V
VOUT = 2.5V
L = 6.8µH
1µs/DIV
CIN = 22µF
COUT = 47µF
ILOAD = 50mA
1875 G10
Burst Mode Operation
IL
200mA/DIV
VOUT
100mV/DIV
SW
5V/DIV
VIN = 4.2V
VOUT = 2.5V
L = 6.8µH
25µs/DIV
CIN = 22µF
COUT = 47µF
ILOAD = 50mA
1875 G11
Soft-Start with Shorted Output
IVIN
500mA/DIV
RUN/SS
1V/DIV
VIN = 3.6V
VOUT = 0V
L = 6.8µH
5ms/DIV
CIN = 22µF
COUT = 47µF
ILOAD = 0A
1875 G12
1875f
5
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