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PT78HT205S PDF预览

PT78HT205S

更新时间: 2024-11-18 22:24:43
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放大器
页数 文件大小 规格书
3页 218K
描述
2 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

PT78HT205S 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:, SMSIP3H,1.0
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.71
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
最大输入电压:28 V最小输入电压:9 V
标称输入电压:12 VJESD-30 代码:R-XSMA-G3
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
封装等效代码:SMSIP3H,1.0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子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:800 kHz技术:HYBRID
温度等级:INDUSTRIAL端子形式:GULL WING
端子节距:2.54 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:NOT SPECIFIEDBase Number Matches:1

PT78HT205S 数据手册

 浏览型号PT78HT205S的Datasheet PDF文件第2页浏览型号PT78HT205S的Datasheet PDF文件第3页 
Application Notes  
Mechanical Outline  
For assistance or to order, call (800) 531-5782  
Product Selector Guide  
P T 7 8 H T 2 0 0 S e r i e s  
2 AMP POSITIVE STEP-DOWN  
INTEGRATED SWITCHING REGULATOR  
Revised 5/15/98  
High Efficiency > 85%  
Wide Input Range  
Self-Contained Inductor  
Short-Circuit Protection  
Over-Temperature Protection  
Fast Transient Response  
a maximum output current of 2.0 Amps.  
The output voltage is laser trimmed  
for high accuracy.  
These 78 series regulators have excel-  
lent line and load regulation with internal  
short-circuit and over-temperature protec-  
tion, and are offered in a variety of standard  
output voltages. These ISRs are very flex-  
ible and may be used in a wide variety of  
applications.  
This is the new generation of the  
PT78HT200 Series wide input range  
3 terminal regulators. These ISRs have  
Pin-Out Information  
Ordering Information  
PT78HT2  
XX  
Y
Pin 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  
05 = 5.0 Volts  
53 = 5.25 Volts  
65 = 6.5 Volts  
Vin  
Vout  
1
3
PT78HT200  
2
+
C1  
COM  
C2  
COM  
C1 = Optional 1µF ceramic  
C2 = Required 100µF electrolytic  
Pkg Style 500  
Specifications  
PT78HT200 SERIES  
Characteristics  
(Ta = 25°C unless noted)  
Symbols  
Io  
Conditions  
Min  
0.1*  
Typ  
Max  
2.0  
Units  
A
Output Current  
Over Vin range  
Vin = Vin min  
0.1 Io 2.0A  
Short Circuit Current  
Input Voltage Range  
Isc  
6.0  
Apk  
Vin  
Vo=3.3V  
Vo=5V  
9
15  
28  
28  
V
V
V
9
Vo=6.5V  
10.5  
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  
Vo Ripple/Noise  
Regline  
Regload  
Vn  
Over Vin range  
±0.4  
±0.2  
±1  
±0.8  
±0.4  
%Vo  
%Vo  
%Vo  
0.1 Io 2.0A  
Vin = Vin min, Io = 2.0A  
Transient Response  
ttr  
50% load change  
100  
5.0  
µSec  
%Vo  
(with 100µF output cap)  
Vo over/undershoot  
Efficiency  
η
Vin=9V, Io = 2.0A  
Vo=5V  
80  
%
Switching Frequency  
ƒo  
Over Vin and Io ranges Vo=5V, 6.5V  
Vo=3.3V  
700  
950  
750  
800  
kHz  
kHz  
1,000  
1,050  
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  
+75**  
°C  
Thermal Resistance  
Storage Temperature  
Mechanical Shock  
θja  
Ts  
Free Air Convection, (40-60LFM)  
40  
°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
G’s  
Weight  
6.5  
Grams  
*ISR will operate down to no load with reduced specifications.  
**See Thermal Derating chart.  
Note: The PT78HT200 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.  
16  
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com  

PT78HT205S 替代型号

型号 品牌 替代类型 描述 数据表
78ST205SCT TI

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