S-13D1 Datasheet, PDF (19/45 Pages) Seiko Instruments Inc – SUPER-SMALL PACKAGE 2-CIRCUIT BUILT-IN DELAY FUNCTION HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR

SUPER-SMALL PACKAGE 2-CIRCUIT BUILT-IN DELAY FUNCTION HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.1.3_01
S-13D1 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.
Note that the current consumption increases when a voltage of 0.3 V to VIN − 0.3 V is applied to the ON / OFF pin.
The ON / OFF pin is configured as shown in Figure 24 and Figure 25.
3. 1 S-13D1 Series A / B / C 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 VSS
level.
3. 2 S-13D1 Series D / E / F type
The ON / OFF pin is not internally pulled down to the VSS pin, so do not use it in the floating status. When not using
the ON / OFF pin, connect the pin to the VIN pin.
Table 11
Product Type
ON / OFF Pin
Internal Circuit
VOUT Pin Voltage
Current Consumption
A / B / C / D / E / F "H": ON
A / B / C / D / E / F "L": OFF
Operate
Stop
Set value
VSS level
ISS1^*1
ISS2
*1. Note that the IC's current consumption increases as much as current flows into the constant current of 0.3 μA
typ. when the ON / OFF pin is connected to VIN pin and the S-13D1 Series A / B / C type is operating (refer to
Figure 24).
VIN
VIN
ON / OFF
ON / OFF
VSS
Figure 24 S-13D1 Series A / B / C Type
VSS
Figure 25 S-13D1 Series D / E / F Type
19