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AP1621AWA

更新时间： 2024-11-25 19:50:07
品牌 Logo 应用领域
易亨 - ANACHIP 开关光电二极管
页数 文件大小 规格书
5页 163K
描述
Switching Regulator/Controller, Voltage-mode, 310kHz Switching Freq-Max, PDSO5,

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中文翻译

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AP1621AWA 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：TSOP, TSOP5/6,.11,37Reach Compliance Code：unknown
风险等级：5.81控制模式：VOLTAGE-MODE
JESD-30 代码：R-PDSO-G5JESD-609代码：e0
端子数量：5最高工作温度：80 °C
最低工作温度：-30 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSOP封装等效代码：TSOP5/6,.11,37
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE
认证状态：Not Qualified子类别：Switching Regulator or Controllers
表面贴装：YES最大切换频率：310 kHz
温度等级：COMMERCIAL EXTENDED端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUALBase Number Matches：1

AP1621AWA 数据手册

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AP1621  
PWM/PFM Dual Mode Step-down DC/DC Controller  
„ Features  
„ General Descriptions  
The AP1621 series are multi-functional step-down  
DC/DC converters with built-in speed, low ON  
resistance drivers. A more than 1A output current is  
possible using an externally connected transistor,  
coil, diode and capacitor.  
- Input voltage range:2.2V~8V（VOUT type）  
- Adjustable version（±2.5%）  
- Oscillator frequency: 270KHz（±15%）  
- High Efficiency: 92%（typ .）  
- Stand-by capability: ISTB＝2µA.（max .）  
- Soft-start time set-up externally type possible  
- Output voltage type possible（FB）  
- Package: SOT23-5  
Output voltage is set-up by external resistor（. ±2.5%  
accuracy）.  
With a 270KHz switching frequency, the size of the  
external components can be reduced.  
Control switches from PWM to PFM during light  
loads with the AP1621（PWM/PFM switchable）and  
the series is highly efficient from light loads to large  
output currents.  
„ Applications  
● Electronic Information Organizers  
● Palmtops  
In relation to soft-start time external capacitor  
regulated types.  
● Cellular and portable phones  
● Portable Audio Systems  
● Various Multi-function Power Supplies  
During stand-by time （CE pin “LOW”）,current  
consumption is reduced to less than 0.5µA.  
With U.V.L.O internal, the external MOSFET. Will  
be forcibly switched off if used below the stipulated  
voltage.  
„ Pin Assignment  
„ Pin Descriptions  
(Top View)  
VDD  
5
FB  
5
CE  
4
VOUT  
4
Pin No.  
Pin  
Function  
Name  
A
B
1
4
V OUT External PMOSFET Connection  
2
3
2
5
GND Ground  
AP1621A  
AP1621B  
V DD Power Supply  
Chip Enable  
CE  
4
5
1
3
Soft-start capacitor connection  
1
2
3
1
2
3
VOUT  
CE  
GND  
GND FB  
VDD  
FB  
Feedback pin  
SOT23-5  
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 May.27, 2004  
1/5  
12345

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