S-8533 Datasheet, PDF (4/31 Pages) Seiko Instruments Inc – STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER

STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8533 Series
Rev.2.3_00
„ Pin Configurations
8-Pin TSSOP
Top view
1
8
2
7
3
6
4
5
Figure 2
Table 1
Pin No.
1
Symbol
Pin Description
NC^*1 No connection
2
VOUT Output voltage pin
Shutdown pin
3
H : Normal operation (step-down operation)
ON/ OFF _{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
8
VIN IC power supply pin
*1. The NC pin is electrically open. Connection of this pin to VIN or VSS is
allowed.
4
Seiko Instruments Inc.