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HT7463A PDF预览

HT7463A

更新时间: 2024-01-05 07:39:44
品牌 Logo 应用领域
台湾合泰/盛群 - HOLTEK 开关光电二极管
页数 文件大小 规格书
16页 1487K
描述
Switching Regulator, Current-mode, 1500kHz Switching Freq-Max, PDSO6, SOT-23, 6 pin

HT7463A 技术参数

生命周期:Active包装说明:SOP, SOP6,.11
Reach Compliance Code:unknown风险等级:5.76
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:52 V
最小输入电压:4.5 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G6长度:2.9 mm
功能数量:1端子数量:6
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电压:46.8 V最小输出电压:1 V
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP6,.11封装形状:RECTANGULAR
封装形式:SMALL OUTLINE座面最大高度:1.45 mm
最大供电电流 (Isup):1 mA表面贴装:YES
切换器配置:BUCK最大切换频率:1500 kHz
温度等级:INDUSTRIAL端子形式:GULL WING
端子节距:0.95 mm端子位置:DUAL
宽度:1.6 mmBase Number Matches:1

HT7463A 数据手册

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HT7463A/HT7463B  
52V/600mA, 1.25MHz/550kHz  
Asynchronous Step Down Converter  
Features  
General Description  
• Wide Input Voltage Range 4.5V to 52V  
52V / 0.9Ω Internal Power MOSFET  
600mA Peak Output Current  
Up to 90% Efficiency  
The HT7463A/B is a current mode buck converter.  
With a wide input range from 4.5V to 52V,  
the HT7463A/B is suitable for a wide range of  
applications such as power conditioning from  
unregulated sources. Having a low internal switch  
typical RDSON value of 0.9Ω, the device has a good  
operating typical efficiency value of 85% and the  
added advantage of reduced junction temperature.  
The operating frequency is fixed at 1250/550kHz for  
the HT7463A/HT7463B respectively. The HT7463A  
allows the use of small external components while  
still being able to have low output voltage ripple.  
A soft-start function can be implemented using the  
enable pin and by connecting an external RC circuit  
allowing the user to tailor the soft-start time to a  
specific application.  
1.25MHz (HT7463A) and 550kHz (HT7463B)  
Fixed Operating Frequency  
Ultra Low Shutdown Current < 1  
Output Short Circuit Protection  
Thermal Shutdown Protection  
Package Type: 6-pin SOT23  
µA  
Applications  
Power Meters  
Distribution Power Systems  
Battery Chargers  
Pre-Regulator for Linear Regulators  
Application Circuit  
CB  
0.1µF  
L1  
22µH/47µH *3  
VOUT=12V *1  
D1  
C3  
0.1µF  
C4  
HT7463A/B  
22µF *2  
1
6
CB  
SW  
2
3
5
4
VIN  
GND  
FB  
VIN  
EN  
On/Off  
Control  
C1  
0.1µF  
C2  
100µF  
R1  
84k/ ±1%  
R2  
6k/ ±1%  
Note: *1. C4=330μF is recommended to achieve 1‰ output ripple requirement  
*2. Set R1=84kΩ and R2=16kΩ for VOUT=5V application  
*3. It’s recommended that L1=22μH for HT7463A and L1=47μH for HT7463B  
Rev. 1.30  
1
August 20, 2018  

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