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参数资料
型号： S-8328B50MA-EXE-T2
元件分类： 稳压器
英文描述： 0.3 A SWITCHING CONTROLLER, 115 kHz SWITCHING FREQ-MAX, PDSO3
封装： PLASTIC, SOT-23, 3 PIN
文件页数： 2/65页
文件大小： 759K
代理商： S-8328B50MA-EXE-T2
SMALL PACKAGE PWM/PFM CONTROL STEP-UP SWITCHING REGULATOR
S-8324/8328 Series
Rev. 7.2_10
10
Seiko Instruments Inc.
2-1. S-8328BxxMC
(Unless otherwise specified: Ta=25
°C)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Test circuit
Output voltageVOUT
S-8328B52MC
5.075
5.200
5.325
V
3
S-8328B50MC
4.880
5.000
5.120
S-8328B38MC
3.709
3.800
3.891
S-8328B36MC
3.514
3.600
3.686
S-8328B33MC
3.221
3.300
3.379
S-8328B30MC
2.928
3.000
3.072
S-8328B27MC
2.635
2.700
2.765
S-8328B26MC
2.538
2.600
2.662
S-8328B25MC
2.440
2.500
2.560
Input voltageVIN
9
Operation start voltageVST1
IOUT=1 mA
0.9
Oscillation start voltageVST2
No external parts, voltage applied to VOUT
0.8
4
Operation holding voltageVHLD
IOUT=1 mA, Measured by decreasing VIN
voltage gradually
0.7
3
Current consumption 1
ISS1
VOUT=output voltage
×0.95
S-8328B52MC
39.3
65.5
A4
S-8328B50MC
37.6
62.6
S-8328B38MC
27.6
46.0
S-8328B36MC
26.0
43.3
S-8328B33MC
23.7
39.5
S-8328B30MC
21.4
35.7
S-8328B27MC
19.2
32.0
S-8358B26MC
18.5
30.9
S-8328B25MC
17.8
29.7
Current consumption 2
ISS2
VOUT=output voltage+0.5
S-8328B52MC
4.2
8.3
S-8328B50MC
4.2
8.3
S-8328B38MC
4.0
8.0
S-8328B36MC
4.0
7.9
S-8328B33MC
4.0
7.9
S-8328B30MC
3.9
7.8
S-8328B27MC
3.9
7.7
S-8328B26MC
3.9
7.7
S-8328B25MC
3.9
7.7
shutdown current
ISSS
VON/OFF=0 V
0.5
EXT pin output current
IEXTH
VEXT=VOUT-0.4 V
S-8328B52MC
-5.3
-8.0
mA
S-8328B50MC
-5.3
-8.0
S-8328B38MC
-3.5
-5.3
S-8328B36MC
-3.5
-5.3
S-8328B33MC
-3.5
-5.3
S-8328B30MC
-3.5
-5.3
S-8328B27MC
-2.7
-4.0
S-8328B26MC
-2.7
-4.0
S-8328B25MC
-2.7
-4.0
IEXTL
VEXT=0.4 V
S-8328B52MC
10.7
16.0
S-8328B50MC
10.7
16.0
S-8328B38MC
7.0
10.5
S-8328B36MC
7.0
10.5
S-8328B33MC
7.0
10.5
S-8328B30MC
7.0
10.5
S-8328B27MC
5.3
8.0
S-8328B26MC
5.3
8.0
S-8328B25MC
5.3
8.0
Line regulation
VOUT1
VIN=output voltage
×0.4 to ×0.6
30
60
mV
3
Load regulation
VOUT2
IOUT=10
A to IOUT(below) ×1.25
30
60
Output voltage
VOUT/Ta Ta=-40°C to +85°C
S-8328B52MC
±0.26
mV/
°C
temperature
S-8328B50MC
±0.25
coefficient
S-8328B38MC
±0.19
S-8328B36MC
±0.18
S-8328B33MC
±0.17
S-8328B30MC
±0.15
S-8328B27MC
±0.14
S-8328B26MC
±0.13
S-8328B25MC
±0.13
Oscillation frequency
fosc
VOUT=output voltage
×0.95
Measured waveform at EXT pin
85
100
115
kHz
4
Max. duty ratio
MaxDuty
VOUT=output voltage
×0.95
Measured waveform at EXT pin
75
83
90
%
PWM/PFM control switch
duty ratio
PFMDuty
VIN= output voltage -0.1 V
No load
515
24
3
Shutdown pin
VSH
VOUT=output voltage
×0.95
Judged the oscillation at EXT pin
0.75
V4
Input voltage
(ON/OFF type)
VSL1
VOUT=output voltage
×0.95
When
VOUT
≥1.5 V
0.3
VSL2
Judged the stop of oscillation
at EXT pin
When
VOUT<1.5 V
0.2
Soft start time
tSS
3.0
6.0
12.0
ms
Efficiency
EFFI
S-8328B52MC
88
%3
S-8328B50MC
88
S-8328B38MC
84
S-8328B36MC
84
S-8328B33MC
84
S-8328B30MC
84
S-8328B27MC
80
S-8328B26MC
80
S-8328B25MC
80
External parts used:
-Coil:
CD54 (47
H) of Sumida Corporation
-Diode:
MA720 (Schottky type) of Matsushita Electric Industrial Co., Ltd.
-Capacitor:
F93 (16 V, 47
F, tantalum type) of Nichicon Corporation
-Transistor:
2SD1628G of Sanyo Electric Co., Ltd.
-Base resistor (Rb):
1.0 k
-Base capacitor (Cb): 2200 pF (ceramic)
DISCONTINUED
PRODUCT
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