S-8353 Seiko Instruments, S-8353 Datasheet - Page 16

• Manufacturer Part Number: S-8353
• Description: (S-8353 / S-8354) PWM Control Switchable Built-in Transistor Switching Regulator
• Manufacturer: Seiko Instruments

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16
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
3.
ON/
Setting the
consumption significantly.
DO NOT use the
up or pulled down internally. DO NOT apply a voltage of between 0.3 V and 0.75 V to the
applying such a voltage increases the current consumption. If the
pin.
The
*1. Voltage obtained by subtracting the voltage drop due to the DC resistance of the inductor and the diode forward
ON
OFF
/
voltage from V
OFF
ON
ON
/
Pin (Shutdown Pin) (SOT-23-5 Package Products of A and H Types)
OFF
/
pin stops or starts step-up operation.
OFF
“H”
“L”
ON
/
pin does not have hysteresis.
OFF
pin
ON
IN
.
/
pin to the “L” level stops operation of all the internal circuits and reduces the current
OFF
CR oscillation circuit
pin in a floating state because it has the structure shown in Figure 10 and is not pulled
Table 16
Operation
Stop
Figure 10
Seiko Instruments Inc.
ON
/
OFF
ON/
Output voltage
OFF
≅ V
Fixed
IN
VOUT
*1
Pin Structure
VSS
ON
/
OFF
pin is not used, connect it to the VOUT
ON
/
OFF
pin because
Rev.1.4
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