S-8533A25AFT-TB-G datasheet(4/31 Pages) SII

Part #	S-8533A25AFT-TB-G

Description	STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER

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Manufacturer	SII [Seiko Instruments Inc]

Direct Link	http://www.sii.co.jp

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STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER

S-8533 Series

Rev.2.3_00

Seiko Instruments Inc.

4

Pin Configurations

Table 1

Pin No.

Symbol

Pin Description

1

NC

*1

No connection

2

VOUT

Output voltage pin

3

ON/

OFF

Shutdown pin

H : Normal operation (step-down operation)

L : Step-down operation stopped (all circuits

deactivated)

4

CSS

Soft start capacitor connection pin

5

VSS

GND pin

6

NDRV

External N-channel connection pin

7

PDRV

External P-channel connection pin

3

4

2

1

6

5

7

8-Pin TSSOP

Top view

8

Figure 2

8

VIN

IC power supply pin

*1. The NC pin is electrically open. Connection of this pin to VIN or VSS is

allowed.

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S-8533A25AFT-TB-G Datasheet(PDF) 4 Page - Seiko Instruments Inc

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