S-8353 Seiko Instruments, S-8353 Datasheet - Page 7

• 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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Rev.1.4
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Pin Configurations
1
1
5
2
SOT-89-3
SOT-23-3
SOT-23-5
Top view
Figure 4
Top view
Figure 5
Top view
Figure 6
_00
2
2
1
4
3
3
3
*1. The NC pin indicates electrically open.
*1. The NC pin indicates electrically open.
Pin No.
Pin No.
Pin No.
Pin No.
Seiko Instruments Inc.
1
2
3
1
2
3
4
5
1
2
3
4
5
1
2
3
(Without shutdown function, V
(Without shutdown function, V
(With shutdown function, V
(Without shutdown function, V
ON
Symbol
Symbol
Symbol
Symbol
CONT
CONT
CONT
VOUT
CONT
VOUT
VOUT
VOUT
VDD
VSS
NC
VSS
NC
VSS
VSS
/
OFF
*1
*1
Table 8 A, C and H Types
Table 11 A and H Types
Table 10 D and J Types
Table 9 A and H Types
Output voltage pin and IC power supply pin
GND pin
External inductor connection pin
Shutdown pin
Output voltage pin and IC power supply pin
No connection
GND pin
External inductor connection pin
Output voltage pin
IC power supply pin
No connection
GND pin
External inductor connection pin
GND pin
Output voltage pin and IC power supply pin
External inductor connection pin
“H”: Normal operation (Step-up operating)
“L”: Step-up stopped (Entire circuit stopped)
DD
DD
DD
/ V
DD
/ V
/ V
Pin Description
Pin Description
Pin Description
Pin Description
OUT
/ V
OUT
OUT
non-separate type)
S-8353/8354 Series
OUT
non-separate type)
non-separate type)
separate type)
7