NR263S Datasheet, PDF (12/29 Pages) Sanken electric – Light Load High Efficiency Synchronous Buck Regulator IC

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7.2 UVLO and Enable Function
In the condition that the EN terminal is connected to the IN terminal, when the input voltage V_IN is increased beyond
6V(typ.), the UVLO is released and started the switching operation. And, in the condition that the input voltage V_IN
is applied beyond 6V(typ.), when the EN terminal voltage exceeds 1.1V (typ.), it is started the switching operation.
VIN
VIN
REN1
IN
EN
GND
REN1
IN
EN
GND
(A)
(B)
Fig. 7-2 Remote ON/OFF by EN terminal
The Fig7-2 (B) is the option of the "Remote ON/OFF control" by using the EN terminal. By using switch such as
Open-collector and, by removing the EN terminal voltage V_EN to GND level (Low), it is possible to turn OFF. In
case of without ON / OFF operation by external signal, please use the Fig7-2 (A) connection. It is started by the
applying of the V_IN, and it is stopped by shut-off of the V_IN. R_EN1 is recommended 100[kΩ].
NR263S series-DSE Rev.1.0
SANKEN ELECTRIC CO.,LTD
12
2016.03.09
http://www.sanken-ele.co.jp/en/
© SANKEN ELECTRIC CO.,LTD. 2016