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78HT265HC PDF预览

78HT265HC

更新时间: 2024-02-17 22:02:28
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器放大器
页数 文件大小 规格书
5页 485K
描述
2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

78HT265HC 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:MODULE
包装说明:VERTICAL MOUNT PACKAGE-3针数:3
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.89
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
最大输入电压:28 V最小输入电压:8.5 V
标称输入电压:9 VJESD-30 代码:R-XSMA-T3
功能数量:1端子数量:3
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:2 A封装主体材料:UNSPECIFIED
封装形状:RECTANGULAR封装形式:MICROELECTRONIC ASSEMBLY
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
表面贴装:NO切换器配置:BUCK
最大切换频率:800 kHz温度等级:INDUSTRIAL
端子形式:THROUGH-HOLE端子位置:SINGLE
处于峰值回流温度下的最长时间:NOT SPECIFIEDBase Number Matches:1

78HT265HC 数据手册

 浏览型号78HT265HC的Datasheet PDF文件第2页浏览型号78HT265HC的Datasheet PDF文件第3页浏览型号78HT265HC的Datasheet PDF文件第4页浏览型号78HT265HC的Datasheet PDF文件第5页 
For assistance or to order, call (800) 531-5782  
7 8 H T 2 0 0 S e r i e s  
2 AMP POSITIVE STEP-DOWN  
INTEGRATED SWITCHING REGULATOR  
Revised 9/22/99  
The 78HT200 is a series of wide  
High Efficiency > 82%  
input voltage, 3 terminal Integrated  
Switching Regulators (ISRs). Employ-  
ing a ceramic substrate, these ISRs  
have a maximum output current of 2A.  
The output voltage is laser trimmed  
for high accuracy.  
Wide Input Range  
Self-Contained Inductor  
Short-Circuit Protection  
Over-Temperature Protection  
Fast Transient Response  
The 78HT200 series regulators  
have internal short-circuit and over-  
temperature protection and may be  
used in a wide variety of applications.  
Pin-Out Information  
Ordering Information  
78HT2  
C
XX  
Y
Pin No. Function  
1
2
3
V
in  
Standard Application  
GND  
Vout  
Output Voltage  
Package Suffix  
V = Vertical Mount  
S = Surface Mount  
H = Horizontal  
Mount  
33 = 3.3 Volts  
46 = 4.6 Volts  
05 = 5.0 Volts  
53 = 5.25 Volts  
65 = 6.5 Volts  
75 = 7.5 Volts  
10 = 10.0 Volts  
Vin  
Vout  
GND  
1
3
78HT200  
2
+
C1  
GND  
C2  
C1 = Optional 1µF ceramic  
C2 = Required 100µF electrolytic  
(For dimensions and PC board  
layout see Package Style 500.)  
Specifications  
78HT200 SERIES  
Characteristics  
(Ta = 25°C unless noted)  
Symbols  
Io  
Conditions  
Min  
Typ  
Max  
Units  
Output Current  
Over Vin range  
Io = 0.1 to 2.0A  
0.1*  
2.0  
A
Input Voltage Range  
Vin  
Vo < 4.6V  
Vo > 4.6V  
7
15  
28  
V
V
Vo +2V  
Output Voltage Tolerance  
Vo  
Over Vin range, Io = 2.0A  
Ta = 0°C to +60°C  
1.0  
2.0  
%Vo  
Line Regulation  
Load Regulation  
Ripple/Noise  
Regline  
Regload  
Vn  
Over Vin range  
0.4  
0.2  
0.8  
0.4  
%Vo  
%Vo  
%Vo  
0.1 Io 2.0A  
Vin = Vin min, Io = 2.0A  
1
Transient Response  
(with 100µF output cap)  
ttr  
50% load change  
Vo over/undershoot  
100  
5.0  
µSec  
%Vo  
Efficiency  
η
Vin = 9V, Io = 2.0A, Vo = 5V  
82  
%
Switching Frequency  
ƒo  
Over Vin and Io ranges Vo > 4.6V  
Vo = 3.3V  
700  
0.95  
750  
1.0  
800  
1.05  
kHz  
MHz  
Absolute Maximum  
Ta  
Ta  
-40  
+85  
°C  
Operating Temperature Range  
Recommended Operating  
Temperature Range  
Free Air Convection, (40-60LFM)  
Over Vin and Io ranges  
-40  
+85**  
°C  
Thermal Resistance  
Storage Temperature  
Mechanical Shock  
θja  
Ts  
Free Air Convection, (40-60LFM)  
38  
°C/W  
°C  
-40  
+125  
Per Mil-STD-883D, Method 2002.3  
500  
G’s  
Mechanical Vibration  
Per Mil-STD-883D, Method 2007.2,  
20-2000 Hz, soldered in a PC board  
5
7
G’s  
Weight  
Grams  
*
ISR will operate down to no load with reduced specifications.  
** See Thermal Derating chart.  
Note: The 78HT200 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.  
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com  

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