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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 0 μ A (TYP.), with a state of high
impedance at the Lx pin and V OUT 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 0 μ A (TYP.).
● XCL205/XCL206 series - Examples of how to use CE/MODE pin
V DD
V IN
V DD
V IN
(A)
SW_CE
SELECTED
STATUS
R1
CE/MODE
SW_CE
CE/MODE
ON
OFF
Stand-by
Operation
(B)
SW_CE
（ A ）
< IC inside >
R2
< IC inside >
（ B ）
SW_CE
ON
OFF
SELECTED
STATUS
Operation
Stand-by
● XCL207 series - Examples of how to use CE/MODE pin
V DD
SW_PWM/PFM
SW_CE
V IN
V DD
RM1
V IN
CE/MODE
(A)
SW_CE
SW_PWM/PFM
SELECTED
STATUS
PWM/PFM
RM1
CE/MODE
RM2
ON
*
Automatic
Switching Control
RM2
SW_PWM/PFM
SW_CE
OFF
OFF
ON
OFF
PWM Control
Stand-by
< IC inside >
< IC inside >
(B)
（ A ）
（ B ）
SW_CE
SW_PWM/PFM
SELECTED
STATUS
Intermediate voltage can be generated by RM1 and RM2. Please set the value
of each R1, R2, RM1, RM2 from
few hundreds k Ω to few hundreds M Ω . For switches, CPU open-drain I/O
port and transistor can be used.
ON
OFF
OFF
*
ON
OFF
Stand-by
PWM Control
PWM/PFM
Automatic
Switching Control
13/25
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