XCL205/XCL206/XCL207 Series
■OPERATIONAL DESCRIPTION (Continued)
<CE/MODE Pin Function>
The operation of the XCL205/XCL206/ XCL207 series will enter into the shut down mode when a low level signal is input to the
CE/MODE pin. During the shutdown 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/MODE pin. The
input to the CE/MODE pin is a CMOS input and the sink current is 0μA (TYP.).
●XCL205/XCL206 series - Examples of how to use CE/MODE pin
(A)
V IN
V IN
VDD
V DD
SELECTED
STATUS
SW_CE
SW_CE
ON
Stand-by
R1
CE/MODE
CE/MODE
OFF
Operation
(B)
SW_CE
SELECTED
STATUS
R2
SW_CE
ON
Operation
Stand-by
< IC inside >
< IC inside >
OFF
（A）
（B）
●XCL207 series - Examples of how to use CE/MODE pin
(A)
VIN
V IN
V DD
VDD
SELECTED
STATUS
SW_CE
SW_PWM/PFM
RM1
RM2
SW_PWM/PFM
SW_CE
CE/MODE
PWM/PFM
Automatic
ON
*
RM1
CE/MODE
Switching Control
PWM Control
Stand-by
OFF
OFF
ON
RM2
SW_CE
SW_PWM/PFM
OFF
< IC inside >
< IC inside >
(B)
（A）
（B）
SELECTED
STATUS
SW_CE
SW_PWM/PFM
Intermediate voltage can be generated by RM1 and RM2. Please set the value
of each R1, R2, RM1, RM2 from
few hundreds kΩ to few hundreds MΩ. For switches, CPU open-drain I/O
port and transistor can be used.
ON
*
Stand-by
PWM Control
PWM/PFM
OFF
ON
OFF
OFF
Automatic
Switching Control
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TOREX [ Torex Semiconductor ]
