- 您现在的位置：买卖IC网 > PDF目录299876 > S-8328J25MC-F2F-T2 0.3 A SWITCHING CONTROLLER, 287.5 kHz SWITCHING FREQ-MAX, PDSO5 PDF资料下载
参数资料
| 型号： | S-8328J25MC-F2F-T2 |
| 元件分类： | 稳压器 |
| 英文描述： | 0.3 A SWITCHING CONTROLLER, 287.5 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | PLASTIC, SOT-23, 5 PIN |
| 文件页数： | 1/65页 |
| 文件大小： | 759K |
| 代理商： | S-8328J25MC-F2F-T2 |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页
Seiko Instruments Inc.
1
S-8324/8328 Series
SMALL PACKAGE PWM/PFM CONTROL
STEP-UP SWITCHING REGULATOR
The S-8324/8328 is a series of CMOS PWM/PFM-control step-up
switching regulators which mainly consist of a reference voltage source,
an oscillation circuit, a power MOS FET (S-8324 Series) and an error
amplifier. The new method PWM/PFM control circuit automatically
switches the control method according to the current load, offering
products of a wide range, high efficiency. A step-up switching regulator is
constructed by externally connecting only a coil, a capacitor and a diode
to the S-8324 Series. This feature, along with its small package and low
current consumption, makes the S-8324 Series ideal for the power supply
of portable equipment. For applications requiring a high output current,
products used with an external transistor (S-8328 Series) are also
available.
Features
Low voltage operation:
0.9 V (IOUT=1 mA, 50 kHz and 100 kHz models)
Low current consumption:
During operation:
17.2
A (typ.)
(VOUT = 3 V, 50 kHz)
During shutdown: 0.5
A (max.)
Low Input current:
10.4
A ( typ.)
(VOUT = 3 V, 50 kHz, no load)
Duty ratio:
During PWM control: 15 to 83% typ.
(15 to 78% for 250kHz model)
During PFM control: 15 % typ.
External parts: coil, diode, and capacitor only
(a transistor is needed for the S-8328 Series.)
Output voltage: accuracy of
±2.4%
Oscillation frequency:
30 kHz, 50 kHz, 100 kHz, and 250 kHz
Software start function is built-in
Shutdown function
External transistor type is available (S-8328 Series)
SOT-23-5 small plastic package
SOT-23-3 small plastic package
SOT-89-3 miniature power molded plastic package
Step-down and invert type are also available.
Applications
Power supplies for portable equipment such as pagers, handy calculators, and remote controllers
Constant voltage power supplies for cameras, video equipment, and communications equipment
Power supply for microcomputers
Block Diagram
ON/ OFF
PWM
control
circuit
-
+
VOUT
CONT
VREF
Soft start circuit
VSS
-
+
VREF
VSS
VDD
VSS
VREF
-
+
VREF
EXT
ON/ OFF
(2) S-8328 Series (Types B, H)
(1) S-8324 Series (Types A, C, H)
PWM
control
circuit
Soft start circuit
(4) S-8328 Series (Types E, J)
(3) S-8324 Series (Types D, J)
PWM
control
circuit
Soft start circuit
PWM
control
circuit
Soft start circuit
Figure 1 Block Diagram
Rev. 7.2_10
DISCONTINUED
PRODUCT
相关PDF资料 |
PDF描述 |
|---|---|
| S-8331B20FS-T2G | SWITCHING CONTROLLER, PDSO8 |
| S-8340A25AFT-T2 | 0.1 A SWITCHING CONTROLLER, 690 kHz SWITCHING FREQ-MAX, PDSO8 |
| S-8351A28MC-J2NT2G | SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, PDSO5 |
| S-93C56ADFJ | 128 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
| S-93C56BD0I-I8T1G | 128 X 16 MICROWIRE BUS SERIAL EEPROM, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| S832D | 功能描述:SW TOGGLE 3PDT 30A LEVER SCREW RoHS:是 类别:开关 >> 拨动开关 系列:S 标准包装:1 系列:A 电路:双刀双掷 开关功能:开-开-开 触点额定电压:6A @ 125VAC 触动器类型:扁平型 触动器长度:11.38mm 发光:不发光 安装类型:面板安装 端接类型:焊片 轴衬螺纹:1/4-40 包装:散装 |
| S-832D | 制造商:Nihon Kaiheiki Ind Co Ltd 功能描述:250V 50000 Silver 70 -10 42mm 24mm 73mm |
| S832D-RO | 功能描述:拨动开关 3PST ON-NONE-ON RoHS:否 制造商:C&K Components 触点形式:DPDT 开关功能:ON - ON - ON 电流额定值: 电压额定值 AC:20 V 电压额定值 DC:20 V 功率额定值:0.4 VA 端接类型:V-Bracket 安装风格: 端子密封:Epoxy 触点电镀:Gold 照明:Not Illuminated |
| S832-RO | 功能描述:拨动开关 3PDT ON-ON HIGH CAP RoHS:否 制造商:C&K Components 触点形式:DPDT 开关功能:ON - ON - ON 电流额定值: 电压额定值 AC:20 V 电压额定值 DC:20 V 功率额定值:0.4 VA 端接类型:V-Bracket 安装风格: 端子密封:Epoxy 触点电镀:Gold 照明:Not Illuminated |
| S8-32X1 | 制造商:MISCELLANEOUS 功能描述: |
发布紧急采购，3分钟左右您将得到回复。