S-8327 Seiko, S-8327 Datasheet - Page 64

• Manufacturer Part Number: S-8327
• Description: (S-8323 / S-8327) SMALL PACKAGE PWM CONTROL STEP-UP SWITCHING REGULATOR
• Manufacturer: Seiko

Collection of Product FAQs
Author: Tachibana Midori
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Index:
Division name: 01 IC
Category 1:
Category 2:
Cal No.:
In the separated VDD type of S-8327/8, what is the output amplitude at the EXT terminal?
The amplitude of the EXT output is from GND to the power-supply voltage of the internal circuit of the
S-8327/8 series. For normal types (A, B, C, and F series), the EXT output amplitude is from GND to
VOUT due to the fact that the power for the internal circuit is supplied from the VOUT terminal. For the
separated VDD type (D, E, and G series), the EXT output amplitude is from GND to VDD due to the fact
that the power-supply voltage for the internal circuit occurs at the VDD terminal. For example, the EXT
output amplitude will be from GND to VIN when the potential of VIN is applied to the VDD terminal.
Peripheral circuit including an external transistor
FAQ No.: 11S8323002
Pch
Nch
V
DD
S-8327
terminal
Public (Printing O.K.)
11 Power Supply
4. Switching Regulators
S-8323/24/27/28
B: Technical
EXT
2200pF
Rb
1K
Date: 98/11/12 (Thursday) 10:17 (Modified: )
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