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PT5501C

更新时间： 2024-02-18 07:49:01
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
9页 174K
描述
3-A 5-V/3.3-V Input Adjustable Integrated Switching Regulator

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PT5501C 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：MODULE
包装说明：, SIP5针数：5
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.72
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：VOLTAGE-MODE
最大输入电压：5.5 V最小输入电压：4.5 V
标称输入电压：5 VJESD-30 代码：R-XSMA-T5
功能数量：1端子数量：5
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：5 A封装主体材料：UNSPECIFIED
封装等效代码：SIP5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：350 kHz技术：HYBRID
温度等级：INDUSTRIAL端子形式：THROUGH-HOLE
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

PT5501C 数据手册

 浏览型号PT5501C的Datasheet PDF文件第1页浏览型号PT5501C的Datasheet PDF文件第2页浏览型号PT5501C的Datasheet PDF文件第3页浏览型号PT5501C的Datasheet PDF文件第5页浏览型号PT5501C的Datasheet PDF文件第6页浏览型号PT5501C的Datasheet PDF文件第7页 
Application Notes  
PT5500/5520 Series  
Adjusting the Output Voltage of the PT5500/20  
Series of Excalibur Step-Down ISRs  
Notes:  
The output voltage of both the PT5500 and PT5520  
series ISRs may be adjusted higher or lower than the  
factory trimmed pre-set voltage with the addition of a  
single external resistor. Table 1 accordingly gives the  
allowable adjustment range for each model for either  
series as Va (min) and Va (max).  
1. Use only a single 1% resistor in either the (R1) or R2  
location. Place the resistor as close to the ISR as possible.  
2. Never connect capacitors from Vo adj to either GND or  
Vout. Any capacitance added to the Vo adjust pin will  
affect the stability of the ISR.  
3. For each model, adjustments to the output voltage may  
place additional limits on the minimum input voltage.  
The revised minimum input voltage must comply with the  
following requirement.  
Adjust Up:  
An increase in the output voltage is obtained by  
adding a resistor R2, between pin 5 (Vo adj) and pin 3 (GND).  
Vin(min) = (Va + 0.5)V or as specified in the data sheet,  
whichever is greater.  
Adjust Down: Add a resistor (R1), between pin 5 (Vo adj) and  
pin 4 (Vout).  
Figure 1  
2
4
V in  
V o  
+VIN  
PT5500  
+VO  
GND  
Vo(adj)  
3
5
(R1)  
Adj Down  
C1  
C2  
+
1
µF  
Ceramic  
100µF  
(Optional)  
(Req'd)  
R2  
Adjust Up  
C O M  
C O M  
The values of (R1) [adjust down], and R2 [adjust up], can  
also be calculated using the following formulas. Refer to  
Figure 1 and Table 2 for both the placement and value of the  
required resistor; either (R1) or R2 as appropriate.  
Ro (Va – 0.9)  
(R1)  
=
=
– Rs  
– Rs  
kΩ  
kΩ  
Vo – Va  
0.9 Ro  
Va – Vo  
R2  
Where:  
Vo = Original output voltage  
Va = Adjusted output voltage  
Ro = The resistance value from Table 1  
Rs = The series resistance from Table 1  
Table 1  
ISR ADJUSTMENT RANGE AND FORMULA PARAMETERS  
3.0 Adc Rated  
1.5 Adc Rated  
PT5501  
PT5521  
PT5502  
PT5522  
PT5503  
PT5523  
PT5504  
PT5524  
PT5505  
PT5525  
PT5506  
PT5526  
PT5507  
PT5527  
V
o
V
a
V
a
R
o
R
s
(nom)  
(min)  
(max)  
(kΩ)  
3.3  
2.88  
3.5  
2.5  
1.97  
2.95  
10.0  
20.0  
2.0  
1.64  
2.45  
10.0  
20.0  
1.8  
1.5  
1.5  
1.3  
1.2  
1.08  
1.65  
10.0  
20.0  
1.0  
0.97  
1.45  
10.2  
20.0  
2.25  
10.0  
20.0  
1.95  
10.0  
20.0  
10.0  
49.9  
(kΩ)  
For technical support and more information, see inside back cover or visit www.ti.com  
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