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A4402 PDF预览

A4402

更新时间: 2024-02-11 17:09:04
品牌 Logo 应用领域
急速微 - ALLEGRO 转换器稳压器
页数 文件大小 规格书
15页 371K
描述
Constant On-Time Buck Converter with Integrated Linear Regulator

A4402 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSSOP
包装说明:LEAD FREE, MO-153ABT, TSSOP-16针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.69
Samacsys Confidence:3Samacsys Status:Released
2D Presentation:https://componentsearchengine.com/2D/0T/1139186.2.1.pngSchematic Symbol:https://componentsearchengine.com/symbol.php?partID=1139186
PCB Footprint:https://componentsearchengine.com/footprint.php?partID=11391863D View:https://componentsearchengine.com/viewer/3D.php?partID=1139186
Samacsys PartID:1139186Samacsys Image:https://componentsearchengine.com/Images/9/A4402KLPTR-T.jpg
Samacsys Thumbnail Image:https://componentsearchengine.com/Thumbnails/2/A4402KLPTR-T.jpgSamacsys Pin Count:17
Samacsys Part Category:Integrated CircuitSamacsys Package Category:Small Outline Packages
Samacsys Footprint Name:Package LP, 16-Pin eTSSOPSamacsys Released Date:2019-01-16 12:18:53
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:50 V最小输入电压:6 V
标称输入电压:8 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:5 mm
湿度敏感等级:2功能数量:1
端子数量:16最高工作温度:150 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP封装等效代码:TSSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.2 mm最大供电电流 (Isup):6 mA
表面贴装:YES切换器配置:BUCK
最大切换频率:2000 kHz温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:4.4 mm
Base Number Matches:1

A4402 数据手册

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A4402  
Constant On-Time Buck Converter  
with Integrated Linear Regulator  
Features and Benefits  
2 MHz switching frequency  
Adjustable soft start timer  
Watchdog input  
Description  
The A4402 is a power management IC that combines a 2%  
constant on-time buck regulator and a 2% linear regulator.  
Ideal for applications that require two regulated voltages. The  
buck regulator output supplies the adjustable linear regulator  
to reduce power dissipation and increase overall efficiency.  
Power-on reset output  
Adjustable 2% buck regulator  
Adjustable 2% linear regulator  
Enable input  
6 to 50 V supply voltage range  
Overcurrent protection  
Theswitchingregulatoriscapableofoperatingabove2 MHz.A  
greater than 2 MHz switching frequency enables the customer  
to select low value inductors and capacitors while avoiding  
EMI.  
Undervoltage lockout (UVLO)  
Thermal shutdown protection  
Protection features include undervoltage lockout and thermal  
shutdown. In case of a shorted load, each regulator features  
overcurrent protection. The A4402 also features a power-on  
reset with adjustable delay for the microprocessor output.  
Applications:  
Photo and inkjet printers  
Industrial controls  
Distributed power systems  
Network applications  
The A4402 is provided in a 16-pin, 1.20 mm nominal  
overall height TSSOP, with exposed pad for enhanced thermal  
dissipation. It is lead (Pb) free, with 100% matte tin leadframe  
plating.  
Package: 16-pin TSSOP with exposed  
thermal pad (suffix LP)  
Not to scale  
Typical Application  
VBAT  
Rton  
750 kΩ  
TON  
VIN1  
CTSET  
0.1 μF  
10 μF  
TSET  
POR  
BOOT  
0.15 μF  
μF  
0.01  
Switching Regulator Output  
VSW  
LX  
CPOR  
5 V  
L1  
33 μH  
ISEN  
0.33 μF  
A4402  
R
SENSE  
4.7 μF  
GND  
GND  
R1  
31.6  
kΩ  
VO2  
FB1  
R2  
9.76 kΩ  
20 kΩ  
NPOR  
VIN2  
VO2  
Linear Regulator Output  
VLIN  
ENB  
WDI  
3.3 V  
300 mA  
R3  
1 μF  
kΩ  
10  
4.7 kΩ  
FB2  
GND  
R4  
5.62 kΩ  
4402-DS, Rev. 1  

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