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AP2014S

更新时间： 2024-11-24 19:33:47
品牌 Logo 应用领域
ICT 光电二极管
页数 文件大小 规格书
11页 265K
描述
Switching Controller, Voltage-mode, 0.5A, 230kHz Switching Freq-Max, PDSO8, LEAD FREE, SOP-8

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中文翻译

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AP2014S 技术参数

生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP,针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.68
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：12 V最小输入电压：4.15 V
标称输入电压：5 VJESD-30 代码：R-PDSO-G8
长度：5.05 mm功能数量：1
端子数量：8最高工作温度：70 °C
最低工作温度：最大输出电流：0.5 A
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
认证状态：Not Qualified座面最大高度：1.75 mm
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：230 kHz温度等级：COMMERCIAL
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL宽度：3.9 mm
Base Number Matches：1

AP2014S 数据手册

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AP2014/A  
Synchronous PWM Controller  
„ Features  
„ General Description  
- Synchronous Controller in 8-Pin Package  
- Operating with single 5V or 12V supply voltage  
- Internal 200KHz Oscillator (400KHz for AP2014A)  
- Soft-Start Function  
The AP2014 controller IC is designed to provide a  
low cost synchronous Buck regulator for on-board  
DC to DC converter applications. With the migration  
of today’s ASIC products requiring low supply  
voltages such as 1.8V and lower, together with  
currents in excess of 3A, traditional linear regulators  
are simply too lossy to be used when input supply is  
5V or even in some cases with 3.3V input supply.  
The AP2014 together with dual N-channel  
MOSFETs such as AF9410, provide a low cost  
solution for such applications. This device features  
an internal 200KHz oscillator (400KHz for "A"  
version), under-voltage lockout for both Vcc and Vc  
supplies, an external programmable soft-start  
function as well as output under-voltage detection  
that latches off the device when an output short is  
detected.  
- Fixed Frequency Voltage Mode  
- 500mA Peak Output Drive Capability  
- Protects the output when control FET is shorted  
- SOP-8L/PDIP-8L Pb-Free package  
„ Applications  
- Graphic Card  
- Hard Disk Drive  
- DDR memory source sink Vtt application  
- Low cost on-board DC to DC such as 5V to 3.3V,  
2.5V or 1.8V  
„ Pin Assignments  
„ Pin Descriptions  
Pin  
Pin  
No.  
Description  
Name  
This pin is connected directly to the output of the  
switching regulator via resistor divider to provide  
feedback to the Error amplifier.  
(Top View)  
FB  
1
This pin provides biasing for the internal blocks of  
the IC as well as power for the low side driver. A  
minimum of 1F, high frequency capacitor must be  
connected from this pin to ground to provide peak  
drive current capability.  
Output driver for the synchronous power MOSFET.  
This pin serves as the ground pin and must be  
connected directly to the ground plane. A high  
frequency capacitor (0.1 to 1F) must be connected  
from V5 and V12 pins to this pin for noise free  
operation.  
Output driver for the high side power MOSFET.  
This pin is connected to a voltage that must be at  
least 4V higher than the bus voltage of the switcher  
(assuming 5V threshold MOSFET) and powers the  
high side output driver. A minimum of 1F, high  
frequency capacitor must be connected from this  
pin to ground to provide peak drive current  
capability.  
Compensation pin of the error amplifier. An external  
resistor and capacitor network is typically connected  
from this pin to ground to provide loop  
compensation.  
1
2
3
4
8
7
6
5
SS  
Comp  
Vc  
FB  
Vcc  
LDrv  
GND  
Vcc  
LDrv  
GND  
HDrv  
2
3
4
5
AP2014/A  
HDrv  
SOP-8L/PDIP-8L  
Vc  
Comp  
SS  
6
7
8
This pin provides soft-start for the switching  
regulator. An internal current source charges an  
external capacitor that is connected from this pin to  
ground which ramps up the output of the switching  
regulator, preventing it from overshooting as well as  
limiting the input current. The converter can be  
shutdown by pulling this pin below 0.5V.  
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this  
product. No rights under any patent accompany the sale of the product.  
Rev. 1.1 Jul 5, 2005  
1/11  
1234567...11

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