S11L10 Datasheet, PDF (15/35 Pages) Seiko Instruments Inc – SUPER-LOW OUTPUT VOLTAGE LOW DROPOUT

SUPER-LOW OUTPUT VOLTAGE LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.2.2_00
S-11L10 Series
3. ON / OFF pin
This pin starts and stops the regulator.
When the ON / OFF pin is set to OFF level, the entire internal circuit stops operating, and the built-in P-channel
MOS FET output transistor between the VIN pin and the VOUT pin is turned off, reducing current consumption
significantly.
Since the S-11L10 Series has a built-in discharge shunt circuit to discharge the output capacitance, the VOUT pin is
forcibly set to the V_SS level. The ON / OFF pin is configured as shown in Figure 14 and Figure 15.
3. 1 S-11L10 Series B type
The ON / OFF pin is internally pulled down to the VSS pin in the floating status, so the VOUT pin is set to the V_SS
level. For the ON / OFF pin current, refer to the B type of ON / OFF pin input current “H” in “ Electrical
Characteristics”.
3. 2 S-11L10 Series D type
The ON / OFF pin is internally not pulled up or pulled down, so do not use this pin in the floating status. When not
using the ON / OFF pin, connect it to the VIN pin.
Caution Under high temperature in the S-11L10 Series, this IC’s current consumption may increase if
applying voltage of 0.2 V to 0.9 V to the ON / OFF pin.
Product Type
B/D
B/D
ON / OFF Pin
“L”: OFF
“H”: ON
Table 8
Internal Circuit
Stop
Operate
VOUT Pin Voltage
V_SS level
Set value
Current Consumption
I_SS2
I_SS1
VIN
VIN
ON / OFF
VSS
Figure 14 S-11L10 Series B Type
ON / OFF
VSS
Figure 15 S-11L10 Series D Type
Seiko Instruments Inc.
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