S-8333CAAA-I8T1U Datasheet, PDF (5/44 Pages) Seiko Instruments Inc – PWM CONTROL SWITCHING REGULATOR CONTROLLER

STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
Rev.4.2_01
S-8333 Series
 Pin Configurations
1. SNT-8A
Top view
1
8
2
7
3
6
4
5
Figure 2
Pin No.
1
2
3
4
5
6
7
8
Symbol
CC
FB
CSP
VIN
EXT
VSS
ROSC
RDuty
Table 1
Description
Error amplifier circuit output phase
compensation pin
Output voltage feedback pin
Short-circuit protection delay time setting pin
Power supply input pin
External transistor connection pin
GND pin
Oscillation frequency setting resistor
connection pin
Maximum duty setting resistor connection pin
2. 8-Pin TSSOP
Top view
1
8
2
7
3
6
4
5
Figure 3
Pin No.
1
2
3
4
5
6
7
8
Symbol
CC
FB
CSP
VIN
EXT
VSS
ROSC
RDuty
Table 2
Description
Error amplifier circuit output phase
compensation pin
Output voltage feedback pin
Short-circuit protection delay time setting pin
Power supply input pin
External transistor connection pin
GND pin
Oscillation frequency setting resistor
connection pin
Maximum duty setting resistor connection pin
5