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LM2576D2T-15 PDF预览

LM2576D2T-15

更新时间: 2024-01-12 11:40:25
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 稳压器
页数 文件大小 规格书
27页 423K
描述
EASY SWITCHERE⑩ 3.0 A STEP-DOWN VOLTAGE REGULATOR

LM2576D2T-15 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:D2PAK
包装说明:, SMSIP5H,.6,67TB针数:5
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.27
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:40 V
最小输入电压:18 V标称输入电压:30 V
JESD-30 代码:R-PSSO-G5JESD-609代码:e3
长度:10.02 mm湿度敏感等级:1
功能数量:1端子数量:5
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:7.5 A封装主体材料:PLASTIC/EPOXY
封装等效代码:SMSIP5H,.6,67TB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座面最大高度:4.826 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:63 kHz
技术:BIPOLAR温度等级:AUTOMOTIVE
端子面层:Tin (Sn)端子形式:GULL WING
端子节距:1.702 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:40宽度:9.1945 mm
Base Number Matches:1

LM2576D2T-15 数据手册

 浏览型号LM2576D2T-15的Datasheet PDF文件第5页浏览型号LM2576D2T-15的Datasheet PDF文件第6页浏览型号LM2576D2T-15的Datasheet PDF文件第7页浏览型号LM2576D2T-15的Datasheet PDF文件第9页浏览型号LM2576D2T-15的Datasheet PDF文件第10页浏览型号LM2576D2T-15的Datasheet PDF文件第11页 
LM2576  
Figure 15. Typical Test Circuit  
Fixed Output Voltage Versions  
Feedback  
4
V
in  
LM2576  
L1  
100  
Fixed Output  
µ
H
1
V
Output  
2
out  
3
Gnd  
5
ON/OFF  
7.0 V – 40 V  
Unregulated  
DC Input  
C
in  
C
out  
1000  
100 µF  
D1  
MBR360  
µF  
Load  
C
C
D1  
L1  
R1  
R2  
100 µF, 75 V, Aluminium Electrolytic  
1000 µF, 25 V, Aluminium Electrolytic  
Schottky, MBR360  
100 µH, Pulse Eng. PE–92108  
2.0 k, 0.1%  
in  
out  
6.12 k, 0.1%  
Adjustable Output Voltage Versions  
Feedback  
4
V
in  
LM2576  
Adjustable  
L1  
100  
V
out  
µ
H
1
Output  
5,000 V  
2
3
Gnd  
5
ON/OFF  
7.0 V – 40 V  
Unregulated  
DC Input  
R2  
C
in  
100  
C
out  
1000  
µF  
D1  
MBR360  
µF  
Load  
R1  
R2  
R1  
V
V
1.0  
out  
ref  
V
out  
R2  
R1  
– 1.0  
V
ref  
Where V = 1.23 V, R1  
ref  
between 1.0 k and 5.0 k  
PCB LAYOUT GUIDELINES  
As in any switching regulator, the layout of the printed  
circuit board is very important. Rapidly switching currents  
associated with wiring inductance, stray capacitance and  
parasitic inductance of the printed circuit board traces can  
generate voltage transients which can generate  
electromagnetic interferences (EMI) and affect the desired  
operation. As indicated in the Figure 15, to minimize  
inductance and ground loops, the length of the leads  
indicated by heavy lines should be kept as short as possible.  
For best results, single–point grounding (as indicated) or  
ground plane construction should be used.  
On the other hand, the PCB area connected to the Pin 2  
(emitter of the internal switch) of the LM2576 should be kept  
to a minimum in order to minimize coupling to sensitive  
circuitry.  
Another sensitive part of the circuit is the feedback. It is  
important to keep the sensitive feedback wiring short. To  
assure this, physically locate the programming resistors near  
to the regulator, when using the adjustable version of the  
LM2576 regulator.  
8
MOTOROLA ANALOG IC DEVICE DATA  

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