S-9365AAAAAI6TIG2 SII [Seiko Instruments Inc], S-9365AAAAAI6TIG2 Datasheet - Page 15

• Manufacturer Part Number: S-9365AAAAAI6TIG2
• Description: STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
• Manufacturer: SII [Seiko Instruments Inc]

Rev.1.1
STEP-UP, SUPER-SMALL PACKAGE, 1.2 MHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
3. Shutdown pin
3.1 Without ON/OFF pin pull-down
3.2 With ON/OFF pin pull-down
This pin stops or starts step-up operations.
When this pin is set to the low level, the voltage of the EXT pin is fixed to 0 V, and the external transistor and all
internal circuits stop, substantially reducing the current consumption.
Do not use the ON/OFF pin in a floating state because it is set up as shown in Figure 11 and is not internally
pulled up or down. Do not apply a voltage of between 0.3 V and 0.75 V to the ON/OFF pin because applying
such a voltage increases the current consumption. If the ON/OFF pin is not used, connect it to the VDD pin.
*1. Voltage obtained by subtracting the voltage drop due to the DC resistance of the inductor and the diode
When the ON/OFF pin is set to the low level, the voltage of the EXT pin is fixed to 0 V, and the external
transistor and all internal circuits stop substantially reducing the current consumption.
The ON/OFF pin is set up as shown in Figure 12 and is internally pulled down by using the depression
transistor, so all circuits stop even if this pin is floating. Do not apply a voltage of between 0.3 V and 0.75 V to
the ON/OFF pin because applying such a voltage increases the current consumption. If the ON/OFF pin is not
used, connect it to the VDD pin.
*1. Voltage obtained by subtracting the voltage drop due to the DC resistance of the inductor and the diode
_00
ON/OFF
forward voltage from V
forward voltage from V
ON/
ON/
ON/OFF
High-Z
OFF
OFF
“H”
“H”
“L”
“L”
pin
Pin
Figure 11
Figure 12
Table 11
Table 12
CR Oscillation
CR Oscillation
IN
IN
.
.
Operates
Operates
Circuit
Circuit
Stops
Stops
Stops
VDD
VSS
Seiko Instruments Inc.
VDD
VSS
Output Voltage
Output Voltage
Set value
Set value
≅V
≅V
≅V
IN
IN
IN
*1
*1
*1
S-8365/8366 Series
15