S-8331 Seiko Instruments USA, S-8331 Datasheet - Page 5

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

Current consumption 1
Current consumption 2
temperature coefficient
Output voltage accuracy
Rev.5.1
Output voltage range
input leakage current
Current consumption
Oscillating frequency
Switching transistor
Maximum duty ratio
Power off terminal
Power off terminal
Electrical Characteristics
Switching current
during power off
leakage current
Load regulation
Line regulation
Output voltage
1. S-8330A Series
Step-Up Switching Regulator
Soft start time
Input voltage
input voltage
Efficiency
Items
_00
ΔVOUT/ΔTa Ta= -20°C to +70°C
Max Duty
Symbols
ΔVOUT1
ΔVOUT2
VOUT
ISWQ
VSH1
VSH2
ISSS
ISS1
ISS2
EFFI
TSS
ISW
fosc
VSL
VIN
ISL
STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR
S-8330A20FS
S-8330A22FS
S-8330A24FS
S-8330A26FS
S-8330A28FS
S-8330A30FS
V
V
Power off pin
=VDIN=0 V,V
VCONT=0.4 V
Power off pin =0 V , VCONT=9 V
V
V
I
output voltage/24 kΩ
V
Measure waveform at CONT pin
V
Measure waveform at CONT pin
VOUT =output voltage×0.95
Check oscillation at CONT pin V
V
Check oscillation stop at CONT pin
V
OUT
IN
IN
IN
IN
OUT
OUT
OUT
IN
=5 V, V
=2 V, V
=3 V to 6 V
=5 V
=output voltage/2.4 MΩ to
=9 V
=output voltage×0.95
=output voltage×0.95
=output voltage×0.95
OUT
OUT
IN
= Output voltage Max.
= Output voltage Min.
=VCLK=VSTRB=5 V
Conditions
Seiko Instruments Inc.
S-8330A20FS
S-8330A22FS
S-8330A24FS
S-8330A26FS
S-8330A28FS
S-8330A30FS
S-8330A20FS
S-8330A22FS
S-8330A24FS
S-8330A26FS
S-8330A28FS
S-8330A30FS
V
IN
IN
≥ 3.0 V
< 3.0 V
Min.
100
144
2.0
2.4
1.6
10
12
14
16
18
—
—
60
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
-1
8
1
±300
±330
±360
±390
±420
±450
Typ.
±1.0
±1.1
±1.2
±1.3
±1.4
±1.5
100
200
±30
180
50
72
85
—
—
—
—
—
—
—
—
—
—
—
—
—
3
(Unless otherwise specified: Ta=25°C)
±2.4%
Max.
200
100
216
9.0
1.0
1.0
0.4
20
22
24
26
28
30
—
—
—
—
—
—
—
—
—
—
—
—
—
—
84
—
—
—
1
6
S-8330/8331 Series
www.DataSheet4U.com
mV/°C
Unit
kHz
mA
mV
mV
ms
μA
μA
μA
μA
μA
%
%
%
V
V
V
Mea.Circ.
—
—
5
5
2
4
4
4
3
5
5
5
2
2
2
1
5
5