S8355 datasheet(10/72 Pages) SII

10 / 72 page

STEP-UP, SUPER-SMALL PACKAGE, 600 kHz, PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

S-8355/56/57/58 Series

Rev.8.1_01



Pin Configurations

SOT-23-3

Top view

Table 12 S-8357/58 Series B, H and F Types

(Without shutdown function, VDD / VOUT non-separate type)

Pin No.

Symbol

Pin Description

VOUT

Output voltage pin and IC power supply pin

VSS

GND pin

EXT

External transistor connection pin

Figure 5

SOT-23-5

Top view

Table 13 S-8355/56 Series K, L, M and Q Types

(With shutdown function, VDD / VOUT separate type)

Pin No.

Symbol

Pin Description

VOUT

Output voltage

VDD

IC power supply pin

OFF

Shutdown pin

“H”: Normal operation (Step-up operating)

“L”: Step-up stopped (Entire circuit stopped)

VSS

GND pin

EXT

External transistor connection pin

Figure 6

Table 14 S-8357/58 Series B, H, F and N Types

(With shutdown function, VDD / VOUT non-separate type)

Pin No.

Symbol

Pin Description

OFF

Shutdown pin

“H”: Normal operation (Step-up operating)

“L”: Step-up stopped (Entire circuit stopped)

VOUT

Output voltage pin and IC power supply pin

NC*1

No connection

VSS

GND pin

EXT

External transistor connection pin

*1. The NC pin indicates electrically open.

Table 15 S-8357/58 Series E, J, G and P Types

(Without shutdown function, VDD / VOUT separate type)

Pin No.

Symbol

Pin Description

VOUT

Output voltage pin

VDD

IC power supply pin

NC*1

No connection

VSS

GND pin

EXT

External transistor connection pin

*1. The NC pin indicates electrically open.

S8355 Datasheet(PDF) 10 Page - Seiko Instruments Inc

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