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78HT353VC PDF预览

78HT353VC

更新时间: 2024-01-11 09:46:43
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
页数 文件大小 规格书
3页 189K
描述
3 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

78HT353VC 技术参数

生命周期:TransferredReach Compliance Code:unknown
风险等级:5.77Is 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:8.25 V标称输入电压:9 V
JESD-30 代码:R-XSIP-T3功能数量:1
端子数量:3最高工作温度:70 °C
最低工作温度:-40 °C最大输出电流:3 A
标称输出电压:5.25 V封装主体材料:UNSPECIFIED
封装代码:SIP封装形状:RECTANGULAR
封装形式:IN-LINE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技术:HYBRID
温度等级:OTHER端子形式:THROUGH-HOLE
端子位置:SINGLEBase Number Matches:1

78HT353VC 数据手册

 浏览型号78HT353VC的Datasheet PDF文件第2页浏览型号78HT353VC的Datasheet PDF文件第3页 
For assistance or to order, call (800) 531-5782  
7 8 H T 3 0 0 S e r i e s  
3 AMP POSITIVE STEP-DOWN  
INTEGRATED SWITCHING REGULATOR  
Revised 6/30/98  
The 78HT300 is a series of wide  
High Efficiency > 80%  
input voltage, 3 terminal Integrated  
Switching Regulators (ISRs). Em-  
ploying a ceramic substrate, these  
ISRs have a maximum output current  
of 3A. 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 78HT300 series regulators  
have internal short-circuit and over-  
temperature protection and may be  
used in a wide variety of applications.  
Ordering Information  
Pin-Out Information  
78HT3  
C
Y
XX  
Pin No. Function  
Standard Application  
1
2
3
V
in  
GND  
Vout  
Output Voltage  
Package Suffix  
Vin  
1
Vout  
GND  
3
V = Vertical Mount  
H = Horizontal  
Mount  
05 = 5.0 Volts  
53 = 5.25 Volts  
78HT300  
+
C1  
GND  
2
C2  
(For dimensions and PC board  
layout see Package Style 600.)  
C1 = Optional 1µF ceramic  
C2 = Required 100µF electrolytic  
Specifications  
78HT300 SERIES  
Characteristics  
(Ta = 25°C unless noted)  
Symbols  
Conditions  
Min  
Typ  
Max  
3.0  
28  
Units  
A
Output Current  
Io  
Over Vin range  
0.1*  
Vo+3  
Input Voltage Range  
Output Voltage Tolerance  
Vin  
Vo  
Io = 0.1 to 3.0A  
Over Vin range  
Ta = 0°C to +60°C  
V
±1.0  
±2.0  
%Vo  
Line Regulation  
Load Regulation  
Ripple/Noise  
Regline  
Regload  
Vn  
Over Vin range  
±0.4  
±0.2  
1
±0.8  
±0.4  
%Vo  
%Vo  
%Vo  
0.1 Io 3.0A  
Vin = Vin min, Io = 3.0A  
Transient Response  
(with 100µF output cap)  
ttr  
50% load change  
Vo over/undershoot  
100  
5.0  
µSec  
%Vo  
Efficiency  
η
Vin = 9V, Io = 3.0A  
80  
%
Switching Frequency  
ƒo  
Over Vin and Io ranges  
700  
750  
800  
kHz  
Absolute Maximum  
Operating Temperature Range  
Ta  
-40  
+70  
°C  
Recommended Operating  
Temperature Range  
Ta  
Free Air Convection, (40-60LFM)  
Over Vin and Io ranges  
-40  
+70**  
°C  
Thermal Resistance  
Storage Temperature  
Mechanical Shock  
Mechanical Vibration  
θja  
Ts  
Free Air Convection, (40-60LFM)  
35  
°C/W  
°C  
-40  
+125  
Per Mil-STD-883D, Method 2002.3  
500  
G’s  
Per Mil-STD-883D, Method 2007.2,  
20-2000 Hz, soldered in a PC board  
10  
11  
G’s  
Weight  
Grams  
*
ISR will operate down to no load with reduced specifications.  
** See Thermal Derating chart.  
Note: The 78HT300 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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