S-8352 Seiko Instruments, S-8352 Datasheet - Page 16

• Manufacturer Part Number: S-8352
• Description: (S-8351 / S-8352) SMALL PACKAGE PFM CONTROL STEP-UP SWITCHING REGULATOR
• Manufacturer: Seiko Instruments

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16
STEP-UP, SUPER-SMALL PACKAGE, PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
S-8351/8352 Series
2.
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 shutdown pin is not used, connect it to the VOUT
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
ON
OFF
ON
/
Pin (Shutdown Pin) (A Type)
OFF
/
pin stops or starts step-up operation.
OFF
“H”
“L”
ON
pin does not have hysteresis.
/
pin
OFF
ON
IN
.
/
OFF
pin to the “L” level stops operation of all the internal circuits and reduces the current
CR oscillation circuit
pin in a floating state because it has the structure shown in Figure 17 and is not pulled
Table 17
Operation
Stop
Figure 17
Seiko Instruments Inc.
ON
/
OFF
ON/
Output voltage
OFF
Fixed
≅ V
IN
VOUT
*1
Pin Structure
VSS
ON
/
OFF
Rev.2.0
pin because
_00