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TC2117-2.5VEB PDF预览

TC2117-2.5VEB

更新时间: 2024-02-02 21:22:21
品牌 Logo 应用领域
美国微芯 - MICROCHIP 输出元件调节器
页数 文件大小 规格书
12页 443K
描述
2.5 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSSO3, ROHS COMPLIANT, PLASTIC, TO-263, DDPAK-3

TC2117-2.5VEB 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TO-263
包装说明:TO-263, SMSIP3H,.55TB针数:3
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.17
可调性:FIXED最大回动电压 1:1.3 V
标称回动电压 1:0.45 V最大绝对输入电压:6.5 V
最大输入电压:6 V最小输入电压:2.7 V
JESD-30 代码:R-PSSO-G3JESD-609代码:e3
长度:10.16 mm最大电网调整率:0.00875%
湿度敏感等级:1功能数量:1
输出次数:1端子数量:3
工作温度TJ-Max:125 °C工作温度TJ-Min:-40 °C
最大输出电流 1:0.8 A最大输出电压 1:2.5625 V
最小输出电压 1:2.4375 V标称输出电压 1:2.5 V
封装主体材料:PLASTIC/EPOXY封装代码:TO-263
封装等效代码:SMSIP3H,.55TB封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified调节器类型:FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度:5.08 mm子类别:Other Regulators
表面贴装:YES技术:CMOS
端子面层:Matte Tin (Sn)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:40最大电压容差:2.5%
宽度:9.017 mmBase Number Matches:1

TC2117-2.5VEB 数据手册

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TC2117  
3.2.2  
POWER DISSIPATION  
3.0  
DETAILED DESCRIPTION  
The amount of power the regulator dissipates is prima-  
rily a function of input and output voltage, and output  
current. The following equation is used to calculate  
worst case actual power dissipation:  
The TC2117 is a precision, positive output LDO. Unlike  
bipolar regulators, the TC2117 supply current does not  
increase proportionally with load current. In addition,  
V
remains stable and within regulation over the  
OUT  
entire 0mA to 800mA operating load range.  
EQUATION 3-1:  
P
(VINMAX – VOUTMIN)I  
LOADMAX  
D
FIGURE 3-1:  
TYPICAL APPLICATION  
CIRCUIT  
Where:  
P
= Worst case actual power dissipation  
D
V
= Maximum voltage on V  
IN  
INMAX  
V
V
V
OUT  
IN  
OUT  
C1  
1µF  
V
= Maximum regulator output voltage  
= Maximum output (load) current  
C2  
1µF  
OUTMIN  
TC2117  
I
LOADMAX  
Battery  
GND  
The  
maximum  
allowable  
power  
dissipation  
(Equation 3-2) is a function of the maximum ambient  
temperature (TAMAX), the maximum allowable die tem-  
perature (125°C) and the thermal resistance from  
junction-to-air (θ ).  
JA  
3.1  
Output Capacitor  
EQUATION 3-2:  
A 1µF (min) capacitor from V  
The output capacitor should have an effective series  
resistance of 0.2to 10. A 1µF capacitor should be  
connected from V to GND if there is more than 10  
to ground is required.  
OUT  
T
JMAX – T  
AMAX  
P
=
DMAX  
θ
JA  
IN  
Where all terms are previously defined.  
inches of wire between the regulator and the AC filter  
capacitor, or if a battery is used as the power source.  
Aluminum electrolytic or tantalum capacitor types can  
be used. (Since many aluminum electrolytic capacitors  
freeze at approximately -30°C, solid tantalums are rec-  
ommended for applications operating below -25°C.)  
When operating from sources other than batteries, sup-  
ply noise rejection and transient response can be  
improved by increasing the value of the input and output  
capacitors and employing passive filtering techniques.  
Table 3-1 shows various values of θ for the TC2117  
mounted on a 1/16 inch, 2-layer PCB with 1 oz. copper  
foil.  
JA  
TABLE 3-1:  
THERMAL RESISTANCE  
GUIDELINES FOR TC2117 IN  
3-PIN SOT-223 PACKAGE  
Copper  
Area  
(Topside)*  
Copper  
Area  
(Backside)  
Thermal  
Resistance  
Board Area  
3.2  
Thermal Considerations  
3.2.1  
THERMAL SHUTDOWN  
2500 sq mm 2500 sq mm 2500 sq mm  
1000 sq mm 2500 sq mm 2500 sq mm  
225 sq mm 2500 sq mm 2500 sq mm  
100 sq mm 2500 sq mm 2500 sq mm  
1000 sq mm 1000 sq mm 1000 sq mm  
45°C/W  
45°C/W  
53°C/W  
59°C/W  
52°C/W  
55°C/W  
Integrated thermal protection circuitry shuts the regula-  
tor off when die temperature exceeds 160°C. The reg-  
ulator remains off until the die temperature drops to  
approximately 150°C.  
1000 sq mm  
0 sq mm  
1000 sq mm  
*Tab of device attached to topside copper.  
DS21665B-page 4  
2002 Microchip Technology Inc.  

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