XCL208/XCL209 Series
■OPERATIONAL DESCRIPTION(Continued)
<CE Pin Function>
The operation of the XCL208/XCL209 series will enter into the stand-by mode when a low level signal is input to the CE pin.
During the stand-by mode, the current consumption of the IC becomes 0μA (TYP.), with a state of high impedance at the Lx pin
and VOUT pin. The IC starts its operation by inputting a high level signal to the CE pin. The input to the CE pin is a CMOS input
and the sink current is 0μA (TYP.).
(A)
(B)
(A)
使用例A
使用例B
VDD
SW_CE
ON
OPERATIONAL STATES
Stand-by
VDD
VIN
CE
VIN
CE
SW_CE
R1
OFF
Active
(B)
SW_CE
R2
SW_CE
ON
OPERATIONAL STATES
Active
< IC inside >
IC内部
< IC inside >
IC内部
OFF
Stand-by
<Soft-Start>
Soft-start time is internally set. Soft-start time is defined as the time to reach 90% of the output nominal voltage when the CE pin
is turned on.
tSS
VCEH
0V
90% of setting voltage
設定電圧の90%
VOUT
0V
12/22
TOREX [ Torex Semiconductor ]
