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| 型号： | S-8353J25MC-IYKT2U |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 287.5 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | HALOGEN AND LEAD FREE, SOT-23, 5 PIN |
| 文件页数： | 1/49页 |
| 文件大小： | 479K |
| 代理商： | S-8353J25MC-IYKT2U |
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S-8353/8354 Series
www.sii-ic.com
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE
BUILT-IN TRANSISTOR SWITCHING REGULATOR
Seiko Instruments Inc., 2002-2010
Rev.3.0_00
Seiko Instruments Inc.
1
The S-8353/8354 Series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an
oscillation circuit, a power MOS FET, an error amplifier, a phase compensation circuit, a PWM control circuit (S-8353 Series)
and a PWM / PFM switching control circuit (S-8354 Series).
The S-8353/8354 Series can configure the step-up switching regulator with an external coil, capacitor, and diode.
In
addition to the above features, the small package and low current consumption make the S-8353/8354 Series ideal for
portable equipment applications requiring high efficiency.
The S-8353 Series realizes low ripple, high efficiency, and excellent transient characteristics due to its PWM control circuit
whose duty ratio can be varied linearly from 0% to 83% (from 0% to 78% for 250 kHz models), an excellently designed error
amplifier, and phase compensation circuits.
The S-8354 Series features a PWM / PFM switching controller that can switch the operation to a PFM controller with a duty
ratio is 15% under a light load to prevent a decline in the efficiency due to the IC operating current.
Features
Low voltage operation: Startup at 0.9 V min. (IOUT = 1 mA) guaranteed
Low current consumption : During operation 18.7
μA (3.3 V, 50 kHz, typ.)
During shutdown: 0.5
μA (max.)
Duty ratio : Built-in PWM / PFM switching control circuit (S-8354 Series)
15 % to 83 % (30 kHz and 50 kHz models)
15 % to 78 % (250 kHz models)
External parts : Coil, capacitor, and diode
Output voltage : Selectable in 0.1 V steps between 1.5 V and 6.5 V (for VDD / VOUT separate types)
Selectable in 0.1 V steps between 2.0 V and 6.5 V (for other than VDD / VOUT separate types)
Output voltage accuracy :
±2.4%
Oscillation frequency : 30 kHz, 50 kHz, and 250 kHz selectable
Soft start function : 6 ms (50 kHz, typ.)
Lead-free, Sn 100%, halogen-free
*1
*1.
Refer to “
Product Name Structure” for details.
Applications
Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs
Power supplies for audio equipment such as portable CD / MD players
Constant voltage power supplies for cameras, VCRs, and communication devices
Power supplies for microcomputers
Packages
SOT-23-3
SOT-23-5
SOT-89-3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| S-8353J30MC-IYPT2G | 功能描述:DC/DC 开关控制器 Step-Up SWR PWM 18.7uA Iq RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| S-8353J30MC-IYPT2U | 功能描述:IC REG BOOST 3V 0.3A SOT23-5 制造商:ablic u.s.a. inc. 系列:- 包装:剪切带（CT） 零件状态:在售 功能:升压 输出配置:正 拓扑:升压 输出类型:固定 输出数:1 电压 - 输入（最小值）:0.9V 电压 - 输入（最大值）:10V 电压 - 输出（最小值/固定）:3V 电压 - 输出（最大值）:- 电流 - 输出:300mA 频率 - 开关:250kHz 同步整流器:无 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商器件封装:SOT-23-5 标准包装:1 |
| S-8353J33MC-IYST2G | 功能描述:DC/DC 开关控制器 Step-Up SWR PWM 18.7uA Iq RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| S-8353J50MC-IZJT2G | 功能描述:直流/直流开关调节器 Step-Up SWR PWM 18.7uA Iq RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| S-8354A27MA-JQMT2G | 功能描述:直流/直流开关调节器 Step-Up SWR PWM 18.7uA Iq RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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