S-8331 Seiko Instruments USA, S-8331 Datasheet - Page 30

• Manufacturer Part Number: S-8331
• Description: Step-Up Switching Regulator (DC/DC Converter ICs)
• Manufacturer: Seiko Instruments USA

30
STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR
S-8330/8331 Series
Transitory Response Characteristics
1. Powering On (V
2. Power Off Pin Response (Von/off=0 → 5.0 V)
Power off
Pin Voltage
Output Vol.
S-8330A30 (Light Load : I
Input Vol.
(2.5V/div)
Output Vol.
S-8331A30 (Light Load → I
Input Vol.
(2.5V/div)
Output Vol.
S-8331A30 (Light Load → I
Pin Voltage
Output Vol.
S-8330A30 (Light Load : I
Power off
(5V/div)
(5V/div)
(5V/div)
(5V/div)
20V
20V
20V
20V
0V
0V
0V
5V
0V
5V
0V
5V
0V
0V
5V
0V
IN
: 0V → 5.0 V)
OUT
OUT
OUT
OUT
=1mA)
=1mA)
=1mA)
=1mA)
t (1msec/div)
t (1msec/div)
t (1msec/div)
t (1msec/div)
V
V
IN
IN
=5V,V
=5V,V
Seiko Instruments Inc.
V
V
OUT
OUT
OUT
OUT
=18V
=18V
=18V
=18V
Power off
Pin Voltage
Output Vol.
Output Vol.
S-8331A30 (Heavy Load → I
Output Vol.
S-8331A30 (Heavy Load →Ι
Pin Voltage
Output Vol.
Input Vol.
Input Vol.
S-8330A30 (Heavy Load : I
S-8330A30 (Heavy Load : I
(2.5V/div)
(2.5V/div)
(5V/div)
Power off
(5V/div)
(5V/div)
(5V/div)
20V
20V
20V
20V
0V
0V
5V
0V
5V
0V
5V
0V
5V
0V
0V
0V
OUT
OUT
OUT
OUT
=20mA)
=1mA)
=20mA)
=10mA)
t (1msec/div)
t (1msec/div)
t (1msec/div)
t (1msec/div)
V
V
IN
IN
=5V,V
=5V,V
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V
V
OUT
OUT
OUT
OUT
Rev.5.1
=18V
=18V
=18V
=18V
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