S-8352 Seiko Instruments, S-8352 Datasheet - Page 7

• 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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Rev.2.0
Pin Configurations
STEP-UP, SUPER-SMALL PACKAGE, PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER
1
5
2
SOT-23-3
SOT-23-5
Top view
Figure 7
Top view
Figure 8
_00
2
1
4
3
3
*1. The NC pin indicates electrically open.
*1. The NC pin indicates electrically open.
Pin No.
Pin No.
Pin No.
Pin No.
1
2
3
1
2
3
1
2
3
4
5
1
2
3
4
5
(Without shutdown function, V
(Without shutdown function, V
Seiko Instruments Inc.
(With shutdown function, V
(With shutdown function, V
ON
ON
Symbol
Symbol
Symbol
Symbol
CONT
CONT
VOUT
VOUT
VOUT
VOUT
VSS
VSS
EXT
NC
VSS
NC
VSS
EXT
/
/
OFF
OFF
*1
*1
Table 6 S-8351 Series B and C Types
Table 7 S-8352 Series B and C Types
Table 8 S-8351 Series A Type
Table 9 S-8352 Series A Type
Output voltage pin and IC power supply pin
GND pin
External inductor connection pin (Open-drain output)
Output voltage pin and IC power supply pin
GND pin
External transistor connection pin (CMOS output)
Shutdown pin
Output voltage pin and IC power supply pin
No connection
GND pin
External inductor connection pin (Open-drain output)
Shutdown pin
Output voltage pin and IC power supply pin
No connection
GND pin
External transistor connection pin (CMOS output)
“H”: Normal operation (Step-up operating)
“L”: Step-up stopped (Entire circuit stopped)
“H”: Normal operation (Step-up operating)
“L”: Step-up stopped (Entire circuit stopped)
DD
DD
DD
DD
/ V
/ V
/ V
/ V
OUT
OUT
OUT
OUT
Pin Description
Pin Description
Pin Description
Pin Description
non-separate type)
non-separate type)
non-separate type)
non-separate type)
S-8351/8352 Series
7