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78ST105SC PDF预览

78ST105SC

更新时间: 2024-01-30 01:28:33
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
6页 236K
描述
1.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

78ST105SC 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:ROHS COMPLIANT, SIP-3
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.82
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE最大输入电压:30 V
最小输入电压:7 V标称输入电压:9 V
JESD-30 代码:R-XSMA-T3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封装等效代码:SIP3,.2
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:NO
切换器配置:BUCK最大切换频率:700 kHz
技术:HYBRID温度等级:OTHER
端子形式:THROUGH-HOLE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 SPECIFIED
Base Number Matches:1

78ST105SC 数据手册

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For assistance or to order, call (800) 531-5782  
7 8 S T 1 0 0 S e r i e s  
1.5 AMP POSITIVE STEP-DOWN  
INTEGRATED SWITCHING REGULATOR  
Revised 6/30/98  
Very Small Footprint  
The 78ST100 is a series of wide input  
High Efficiency > 85%  
Self-Contained Inductor  
Internal Short-Circuit Protection  
Over-Temperature Protection  
Fast Transient Response  
Wide Input Range  
voltage, 3-terminal Integrated Switching  
Regulators (ISRs). These ISRs have a maxi-  
mum output current of 1.5A and an output  
voltage that is laser trimmed to a variety of  
industry standard voltages.  
These 78 series regulators have excellent  
line and load regulation with internal short-  
circuit and over-temperature protection, are  
very flexible, and may be used in a wide  
variety of applications.  
Pin-Out Information  
Ordering Information  
78ST1  
C
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  
65 = 6.5 Volts  
07 = 7.0 Volts  
08 = 8.0 Volts  
09 = 9.0 Volts  
12 = 12.0 Volts  
V = Vertical Mount  
S = Surface Mount  
H = Horizontal  
Mount  
Vin  
Vout  
GND  
1
3
78ST100  
2
+
C1  
GND  
C2  
C1 = Optional 1µF ceramic  
C2 = Required 100µF electrolytic  
Pkg Style 500  
Specifications  
78ST100 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  
Vo= 12V  
7
26  
30  
30  
V
V
V
7
14.5  
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  
ttr  
50% load change  
100  
5
µSec  
(with 100µF output cap)  
Vo over/undershoot  
%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 78ST100 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.  
2
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com  

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