參數(shù)資料
型號： S-8328J25MC-F2F-T2
元件分類： 穩(wěn)壓器
英文描述： 0.3 A SWITCHING CONTROLLER, 287.5 kHz SWITCHING FREQ-MAX, PDSO5
封裝： PLASTIC, SOT-23, 5 PIN
文件頁數(shù)： 4/65頁
文件大?。?/td> 759K
代理商： S-8328J25MC-F2F-T2
SMALL PACKAGE PWM/PFM CONTROL STEP-UP SWITCHING REGULATOR
S-8324/8328 Series
Rev. 7.2_10
12
Seiko Instruments Inc.
2-2. S-8328BxxMA, S-8328BxxUA, S-8328ExxMC
(Unless otherwise specified: Ta=25
°C)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Test circuit
Output voltage
VOUT
S-8328x50xx
4.880
5.000
5.120
V
3
S-8328x33xx
3.221
3.300
3.379
S-8328x30xx
2.928
3.000
3.072
S-8328x27xx
2.635
2.700
2.765
S-8328x25xx
2.440
2.500
2.560
S-8328x20xx
1.952
2.000
2.048
Input voltage
VIN
9
Operation start voltage
VST1
IOUT=1 mA
0.9
Oscillation start voltage
VST2
No external parts, voltage applied to VOUT
0.8
4
Operation holding voltage
VHLD
IOUT=1 mA, Measured by decreasing VIN
voltage gradually
0.7
3
Current consumption 1
ISS1
VOUT=output
voltage
×0.95
S-8328x50xx
37.6
62.6
A
4
S-8328x33xx
23.7
39.5
S-8328x30xx
21.4
35.7
S-8328x27xx
19.2
32.0
S-8328x25xx
17.8
29.7
S-8328x20xx
14.5
24.1
Current consumption 2
ISS2
VOUT=output voltage+0.5 S-8328x50xx
4.2
8.3
S-8328x33xx
4.0
7.9
S-8328x30xx
3.9
7.8
S-8328x27xx
3.9
7.7
S-8328x25xx
3.9
7.7
S-8328x20xx
3.8
7.6
EXT pin output current
IEXTH
VEXT=VOUT-0.4V
S-8328x50xx
-5.3
-8.0
mA
S-8328x33xx
-3.5
-5.3
S-8328x30xx
-3.5
-5.3
S-8328x27xx
-2.7
-4.0
S-8328x25xx
-2.7
-4.0
S-8328x20xx
-1.9
-2.9
IEXTL
VEXT=0.4V
S-8328x50xx
10.7
16.0
S-8328x33xx
7.0
10.5
S-8328x30xx
7.0
10.5
S-8328x27xx
5.3
8.0
S-8328x25xx
5.3
8.0
S-8328x20xx
3.8
5.7
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-8328X50XX
±0.25
mV/
°C
temperature
S-8328X33XX
±0.17
coefficient
S-8328X30XX
±0.15
S-8328X27XX
±0.14
S-8328X25XX
±0.13
S-8328X20XX
±0.10
Oscillation frequency
fosc
VOUT=output voltage
×0.95
Measured waveform at EXT pin
85
100
115
kHz
Max. duty ratio
MaxDuty
VOUT=output voltage
×0.95
Measured waveform at EXT pin
75
83
90
%
4
PWM/PFM control switch
duty ratio
PFMDuty
VIN= output voltage -0.1V
No load
515
24
3
Soft start time
tss
3.0
6.0
12.0
ms
Efficiency
EFFI
S-8328X50XX
88
%3
S-8328X33XX
84
S-8328X30XX
84
S-8328X27XX
80
S-8328X25XX
80
S-8328X20XX
76
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)
Applied VIN=output voltage
×0.6, IOUT=output voltage/50
The VDD pin is connected to VOUT pin for VDD/VOUT separate product.
Note 1: The output voltage specified above is the typical value.
Note 2: VDD/VOUT Separate products:
Boot operation is performed from VDD=0.8 V.
However, 2.0 V or more voltage for VDD is recommended to stabilize the output voltage and oscilation frequency.
DISCONTINUED
PRODUCT
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