XC9236 Torex Semiconductor, XC9236 Datasheet - Page 12

• Manufacturer Part Number: XC9236
• Description: 600mA Driver Tr. Built-In, Synchronous Step-Down DC/DC Converters
• Manufacturer: Torex Semiconductor

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■OPERATIONAL DESCRIPTION (Continued)
<CE/MODE Pin Function>
The operation of the XC9235/XC9236/XC9237 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 V
input to the CE/MODE pin is a CMOS input and the sink current is 0μA (TYP.).
●XC9235/XC9236 series - Examples of how to use CE/MODE pin
●XC9237 series - Examples of how to use CE/MODE pin
(A)
(B)
(B)
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.
(A)
XC9235/XC9236/XC9237
SW＿CE
SW＿CE
SW＿CE
SW＿CE
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
SW＿PWM/PFM
SW＿PWM/PFM
Operation
Operation
Stand-by
Stand-by
STATUS
STATUS
OFF
OFF
ON
ON
*
*
OUT
PWM/PFM Automatic Switching Control
PWM/PFM Automatic Switching Control
pin. The IC starts its operation by inputting a high level signal to the CE/MODE pin. The
PWM Control
PWM Control
Stand-by
Stand-by
STATUS
STATUS
Series
(A)
(A)
(B)
(B)