s-1313a13-n4t1u3 Seiko Instruments Inc., s-1313a13-n4t1u3 Datasheet - Page 20

• Manufacturer Part Number: s-1313a13-n4t1u3
• Description: S-1313 Series Voltage Regulator
• Manufacturer: Seiko Instruments Inc.

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SUPER LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1313 Series
3. ON / OFF pin
This pin starts and stops the regulator.
When the ON / OFF pin is set to the power-off level, the entire internal circuit stops operating, and the built-in P-
channel MOS FET output transistor between the VIN and VOUT pins is turned off, reducing current consumption
significantly.
Note that the current consumption increases when a voltage of 0.25 V to 0.1 V (Ta = 25°C) is applied to the ON / OFF
pin. The ON / OFF pin is configured as shown in Figures 18 and 19.
3.1 S-1313 Series A / C Type
3.2 S-1313 Series B / D Type
*1. IC’s current consumption increases as much as current flows into the constant current source when the ON
The ON / OFF pin is internally pulled down to VSS by constant current source, so the VOUT pin is set to the V
level in the floating status. For the ON / OFF pin current, refer to the A / C type of ON / OFF pin input current “H” in
“ Electrical Characteristics”.
Do not use the ON / OFF pin in the floating state because this pin is internally not pulled up or pulled down. When
not using the ON / OFF pin, connect the pin to the VIN pin.
Product Type
A / B / C / D
A / B / C / D
/ OFF pin is connected to VIN and the S-1313 Series A / C types is operating (Figure 18).
(1) S-1313 Series A / C Type
ON / OFF
“H”: Power-on
“L”: Power-off
ON / OFF Pin
Figure 18
VSS
VIN
Internal Circuits
Seiko Instruments Inc.
Operate
Stop
Table 12
(2) S-1313 Series B / D Type
ON / OFF
VOUT Pin Voltage
Set value
V
SS
level
Figure 19
VSS
VIN
Current Consumption
I
I
SS1
SS2
*1
Rev.1.0
_00
SS