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)： 63/65頁
文件大小： 759K
代理商： S-8328J25MC-F2F-T2
SMALL PACKAGE PWM/PFM CONTROL STEP-UP SWITCHING REGULATOR
Rev. 7.2-10
S-8324/8328 Series
Seiko Instruments Inc.
7
1-3. S-8324CxxMA
(Unless otherwise specified: Ta=25
°C)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Test circuit
Output voltage
VOUT
S-8324C30MA
2.928
3.000
3.072
V
1
S-8324C27MA
2.635
2.700
2.765
S-8324C25MA
2.440
2.500
2.560
Input voltage
VIN
9
Operation start voltage
VST1
IOUT=1 mA
0.9
Oscillation start voltage
VST2
No external parts, voltage applied to VOUT
CONT pulled up to 5 V by 10k
0.8
2
Operation holding voltage
VHLD
IOUT=1 mA, Measured by decreasing VIN
voltage gradually
0.7
1
Input current at no load
IIN
No load
S-8324C30MA
9.6
19.1
A
S-8324C27MA
9.5
19.1
S-8324C25MA
9.7
19.3
Current consumption 1
ISS1
VOUT=output voltage
×0.95
S-8324C30MA
11.6
19.3
2
S-8324C27MA
10.5
17.5
S-8324C25MA
9.8
16.3
Current consumption 2
ISS2
VOUT=output voltage+0.5
S-8324C30MA
3.0
5.9
S-8324C27MA
2.9
5.8
S-8324C25MA
2.9
5.8
Switching current
ISW
VCONT=0.4 V
S-8324C30MA
78
125
mA
S-8324C27MA
61
98
S-8324C25MA
61
98
Switching transistor leak
current
ISWQ
VOUT= VCONT=10 V
1.0
A
Line regulation
VOUT1
VIN=output voltage
×0.4 to ×0.6
30
60
mV
1
Load regulation
VOUT2
IOUT=10
A to IOUT (below) ×1.25
30
60
Output voltage
S-8324C30MA
±0.15
mV/
°C
temperature
VOUT/Ta Ta=-40°C to +85°C
S-8324C27MA
±0.14
coefficient
S-8324C25MA
±0.13
Oscillation frequency
fosc
VOUT=output voltage
×0.95
Measured waveform at CONT pin
25
30
35
kHz
2
Max duty ratio
MaxDuty
VOUT=output voltage
×0.95
Measured waveform at CONT pin
75
83
90
%
PWM/PFM control switch
duty ratio
PFMDuty
VIN= output voltage -0.1 V
No load
515
24
1
Soft start time
tSS
3.0
6.0
12.0
ms
Efficiency
EFFI
S-8324C30MA
81
%1
S-8324C27MA
77
S-8324C25MA
77
External parts used:
-Coil:
CD54 (100
H) of Sumida Corporation
-Diode:
MA720 (Schottky type) of Matsushita Electric Industrial Co., Ltd.
-Capacitor: F93 (16 V, 22
F, tantalum type) of Nichicon Corporation
Applied VIN=output voltage
×0.6, IOUT=output voltage/250
Note 1: The output voltage specified above is the typical value.
DISCONTINUED
PRODUCT
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