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AP1551S

更新时间： 2024-02-21 13:13:10
品牌 Logo 应用领域
ICT 光电二极管
页数 文件大小 规格书
8页 170K
描述
Dual Switching Controller, Voltage-mode, 3A, 173kHz Switching Freq-Max, PDSO16, LEAD FREE, SOP-16

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AP1551S 技术参数

生命周期：Transferred零件包装代码：SOIC
包装说明：SOP,针数：16
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.67
模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：22 V
最小输入电压：4.5 V标称输入电压：12 V
JESD-30 代码：R-PDSO-G16长度：9.9 mm
功能数量：1端子数量：16
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：3 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：BUCK最大切换频率：173 kHz
温度等级：AUTOMOTIVE端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
宽度：3.9 mmBase Number Matches：1

AP1551S 数据手册

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AP1551  
150KHz, Dual Channel 2A PWM Buck DC/DC Converter  
„ Features  
„ General Description  
- Dual adjustable output channel  
- Adjustable output voltage range, 1.23V to  
18V+4%  
The AP1551 is monolithic IC designed for dual  
channel step-down DC/DC converters, and own the  
ability of driving a 2A load each channel without  
additional transistor component. Due to reducing  
the number of external component, the board  
space can be saved easily. The external shutdown  
function can be controlled by logic level and then  
- 150KHz +15% fixed switching frequency  
- Voltage mode non-synchronous PWM control  
- Thermal-shutdown and current-limit protection  
- ON/OFF shutdown control input  
- Operating voltage can be up to 22V  
- Output load current: 2A  
come  
into  
standby  
mode.  
The  
internal  
compensation makes feedback control have good  
line and load regulation without external design.  
Regarding protected function, thermal shutdown is  
to prevent over temperature operating from damage,  
and current limit is against over current operating of  
the output switch. If current limit function occurred  
and VFB is down to 0.5V below, the switching  
frequency will be reduced. The AP1551 operates  
at a switching frequency of 150KHz thus allowing  
smaller sized filter components than what would be  
needed with lower frequency switching regulators.  
Other features include a guaranteed +4% tolerance  
on output voltage under specified input voltage and  
output load conditions, and +15% on the oscillator  
- SOP-16L Pb-Free packages  
- Low power standby mode  
- Built-in switching transistor on chip  
„ Applications  
- Simple High-efficiency step-down regulator  
- On-card switching regulators  
- Positive to negative converter  
frequency. The packages are available in  
standard 16-lead SOP-16 package.  
a
„ Pin Assignments  
„ Pin Descriptions  
( Top View )  
Name  
VIN1/2  
Description  
Operating voltage input  
Switching output  
16  
15  
14  
13  
12  
11  
1
2
3
4
5
6
7
8
GND2  
GND2  
SD2  
VIN2  
SD1  
VIN1  
GND1  
GND1  
GND2  
GND2  
FB2  
VOUT2  
FB1  
VOUT1  
VOUT1/2  
GND1/2  
FB1/2  
SD1/2  
Ground  
Output voltage feedback control  
ON/OFF Shutdown  
10 GND1  
9
GND1  
SOP-16L  
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. 1.0 Nov 17, 2004  
1/8  
12345678

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