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PT78ST115T

更新时间： 2024-11-01 22:44:15
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关
页数 文件大小 规格书
7页 173K
描述
1.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

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中文翻译

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PT78ST115T 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.85模拟集成电路 - 其他类型：SWITCHING REGULATOR
JESD-30 代码：R-XSMA-X3湿度敏感等级：1
功能数量：1端子数量：3
最高工作温度：80 °C最低工作温度：-40 °C
最大输出电流：1.5 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）：215认证状态：Not Qualified
表面贴装：NO切换器配置：BUCK
最大切换频率：700 kHz温度等级：OTHER
端子形式：UNSPECIFIED端子位置：SINGLE
处于峰值回流温度下的最长时间：NOT SPECIFIED

PT78ST115T 数据手册

 浏览型号PT78ST115T的Datasheet PDF文件第2页浏览型号PT78ST115T的Datasheet PDF文件第3页浏览型号PT78ST115T的Datasheet PDF文件第4页浏览型号PT78ST115T的Datasheet PDF文件第5页浏览型号PT78ST115T的Datasheet PDF文件第6页浏览型号PT78ST115T的Datasheet PDF文件第7页 
PT78ST100 Series  
1.5 Amp Positive Step-Down  
Integrated Switching Regulator  
SLTS059A  
(Revised 6/30/2000)  
•
•
•
•
•
•
•
Very Small Footprint  
These ISRs have a maximum output current  
of 1.5 Amps and an output voltage that is laser  
trimmed to a variety of industry standard volt-  
ages.  
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.  
High Efficiency > 85%  
Self-Contained Inductor  
Internal Short-Circuit Protection  
Over-Temperature Protection  
Fast Transient Response  
Wide Input Range  
The PT78ST100 is a series of wide-  
input range, 3-terminal regulators.  
Pin-Out Information  
Ordering Information  
PT78ST1  
XX Y  
Pin Function  
1
2
3
Vin  
Output Voltage  
Package Suffix  
GND  
Vout  
Standard Application  
33 = 3.3 Volts  
36 = 3.6 Volts  
05 = 5.0 Volts  
51 = 5.1 Volts  
53 = 5.25 Volts  
06 = 6.0 Volts  
65 = 6.5 Volts  
07 = 7.0 Volts  
08 = 8.0 Volts  
09 = 9.0 Volts  
10 = 10.0 Volts  
12 = 12.0 Volts  
14 = 13.9 Volts  
15 = 15.0 Volts  
V = Vertical Mount  
S = Surface Mount  
H = Horizontal  
Mount  
Vin  
Vout  
1
3
PT78ST100  
2
+
C1  
COM  
C2  
COM  
C1 = Optional 1µF ceramic  
C2 = Required 100µF electrolytic  
Pkg Style 500  
Specifications  
PT78ST100 SERIES  
Characteristics  
(Ta = 25°C unless noted)  
Symbols  
Io  
Conditions  
Min  
0.1*  
—
Typ  
—
Max  
Units  
A
Output Current  
Over Vin range  
Vin = Vin min  
0.1 ≤ Io ≤ 1.5A  
1.5  
—
Short Circuit Current  
Input Voltage Range  
Isc  
3.5  
Apk  
Vin  
Vo= 3.3V  
Vo= 5V  
9
—
—
—
26  
38  
38  
V
V
V
9
Vo= 12V  
16  
Output Voltage Tolerance  
∆Vo  
Over Vin range, Io=1.5A  
Ta = 0°C to +60°C  
—
1.0  
2.0  
%V  
o
Line Regulation  
Load Regulation  
Vo Ripple/Noise  
Regline  
Regload  
Vn  
Over Vin range  
—
—
—
0.2  
0.1  
0.4  
0.2  
%V  
%V  
o
0.1 ≤ Io ≤ 1.5A  
o
Vin= 9V, Io= 1.5A  
Vin= 16V, Io= 1.5A  
Vo= 5V  
Vo= 12V  
65  
90  
—
mVpp  
mVpp  
Transient Response  
(with 100µF output cap)  
ttr  
50% load change  
Vo over/undershoot  
—
—
100  
5
—
—
µSec  
%V  
o
Efficiency  
η
Vin= 10V, Io= 1A  
Vin= 10V, Io= 1A  
Vin= 17V, Io= 1A  
Vo= 3.3V  
Vo= 5V  
—
—
—
80  
85  
90  
—
—
—
%
%
%
Vo= 12V  
Switching Frequency  
ƒo  
Over Vin range, Io=1.5A  
—
600  
650  
700  
kHz  
Absolute Maximum  
Operating Temperature Range  
Ta  
-40  
—
+85  
°C  
Recommended Operating  
Temperature Range  
Ta  
Free Air Convection, (40-60LFM)  
At Vin= 24V, Io=1.0A  
-40  
—
+80**  
°C  
Thermal Resistance  
Storage Temperature  
Mechanical Shock  
θja  
Ts  
—
—
Free Air Convection, (40-60LFM)  
—
—
45  
—
°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 PT78ST100 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.  
For technical support and more information, see inside back cover or visit www.ti.com/powertrends  
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