参数资料
型号: S-8338ACAA-T8T1
元件分类: 稳压器
英文描述: 0.16 A SWITCHING CONTROLLER, 1133 kHz SWITCHING FREQ-MAX, PDSO8
封装: TSSOP-8
文件页数: 16/49页
文件大小: 554K
代理商: S-8338ACAA-T8T1
STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLERS
Rev.2.1_01
S-8337/8338 Series
Seiko Instruments Inc.
23
Example of Major Temperature Characteristics (Ta
= 40 to 85°C)
ISS1 vs. Ta (VIN
= 3.3 V)
700
600
500
400
300
200
100
0
40 20
0
20
40
60
80
100
Ta [
°C]
ISS1
[
A]
fOSC
= 1133 kHz (ROSC= 120 k)
fOSC
= 700 kHz (ROSC = 200 k)
fOSC
= 286 kHz (ROSC = 510 k)
ISSS vs. Ta (VIN
= 3.3 V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
40 20
0
20
40
60
80
100
Ta [
°C]
ISSS
[
A]
fOSC
= 700 kHz (ROSC = 200 k)
–200
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
40 20
0
20
40
60
80
100
Ta [
°C]
IEXTH
[mA]
IEXTH vs. Ta (VIN
= 3.3 V)
fOSC
= 700 kHz, MaxDuty = 77% (ROSC= 200 k, RDuty= 300 k)
200
180
160
140
120
100
80
60
40
20
0
40 20
0
20
40
60
80
100
Ta [
°C]
IEXTL
[mA]
IEXTL vs. Ta (VIN
= 3.3 V)
fOSC
= 700 kHz, MaxDuty = 77% (ROSC= 200 k, RDuty= 300 k)
0.10
0.08
0.06
0.04
0.02
0
–0.02
–0.04
–0.06
–0.08
–0.10
40 20
0
20
40
60
80
100
Ta [
°C]
IFB
[
A]
IFB vs. Ta (VIN
= 3.3 V)
fOSC vs. Ta (VIN
= 3.3 V)
1400
1200
1000
800
600
400
200
0
40 20
0
20
40
60
80
100
Ta [
°C]
fOSC
[kHz]
fOSC
= 1133 kHz (ROSC = 120 k)
fOSC
= 700 kHz (ROSC = 200 k)
fOSC
= 286 kHz (ROSC = 510 k)
100
90
80
70
60
50
40
30
20
10
0
40 20
0
20
40
60
80
100
Ta [
°C]
MaxDuty
[%]
MaxDuty vs. Ta (VIN
= 3.3 V)
MaxDuty
= 88.5% (ROSC = 200 k, RDuty= 100 k)
MaxDuty
= 77% (ROSC= 200 k, RDuty= 300 k)
MaxDuty
= 47% (ROSC= 200 k, RDuty= 820 k)
tSS vs. Ta (VIN
= 3.3 V)
25.0
20.0
15.0
10.0
5.0
0
40 20
0
20
40
60
80
100
Ta [
°C]
tSS
[ms]
tSS
= 10 ms
tSS
= 20 ms
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