S-8355 Seiko Instruments, S-8355 Datasheet - Page 25

• Manufacturer Part Number: S-8355
• Description: (S-8355 - S-8358) PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR
• Manufacturer: Seiko Instruments

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Rev.6.6
3.
STEP-UP, SUPER-SMALL PACKAGE, 600 kHz, PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
ON/
Types, and 6-Pin SNB(B) Package Products)
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
/
_00
voltage from V
ON
OFF
ON
/
Pin (Shutdown Pin) (SOT-23-5 Package Products of S-8355/56/57/58 Series B, H, F, K, L, M, N and Q
OFF
/
OFF
pin stops or starts step-up operation.
“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 14 and is not pulled
Table 28
Operation
Stop
*1. VDD for K, L, M and Q types.
Figure 14
Seiko Instruments Inc.
ON
/
OFF
ON/
Output voltage
OFF
Fixed
≅ V
IN
VOUT
*1
Pin Structure
ON
*1
VSS
/
OFF
pin is not used, connect it to the VOUT
S-8355/56/57/58 Series
ON
/
OFF
pin because
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