5秒后页面跳转
MIC4576-3.3BUT&R PDF预览

MIC4576-3.3BUT&R

更新时间: 2024-12-01 13:11:31
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器开关信息通信管理局域网
页数 文件大小 规格书
7页 74K
描述
Switching Regulator, Voltage-mode, 8.5A, 220kHz Switching Freq-Max, BICMOS, PSSO5, TO-263, 5 PIN

MIC4576-3.3BUT&R 技术参数

是否Rohs认证:不符合生命周期:Obsolete
零件包装代码:D2PAK包装说明:TO-263,
针数:4Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.1Is Samacsys:N
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:36 V
最小输入电压:6 V标称输入电压:12 V
JESD-30 代码:R-PSSO-G5JESD-609代码:e0
长度:10.287 mm湿度敏感等级:3
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:8.5 A标称输出电压:3.3 V
封装主体材料:PLASTIC/EPOXY封装代码:TO-263
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):240认证状态:Not Qualified
座面最大高度:4.8 mm最大供电电流 (Isup):10 mA
表面贴装:YES切换器配置:BUCK
最大切换频率:220 kHz技术:BICMOS
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:1.7 mm
端子位置:SINGLE处于峰值回流温度下的最长时间:30
宽度:9.144 mmBase Number Matches:1

MIC4576-3.3BUT&R 数据手册

 浏览型号MIC4576-3.3BUT&R的Datasheet PDF文件第2页浏览型号MIC4576-3.3BUT&R的Datasheet PDF文件第3页浏览型号MIC4576-3.3BUT&R的Datasheet PDF文件第4页浏览型号MIC4576-3.3BUT&R的Datasheet PDF文件第5页浏览型号MIC4576-3.3BUT&R的Datasheet PDF文件第6页浏览型号MIC4576-3.3BUT&R的Datasheet PDF文件第7页 
MIC4576  
200kHz Simple 3A Buck Voltage Regulator  
General Description  
Features  
The MIC4576 is a series of easy to use fixed and adjustable  
BiCMOS step-down (buck) switch-mode voltage regulators.  
The 200kHz MIC4576 duplicates the pinout and function of  
the 52kHz LM2576. The higher switching frequency may  
allow up to a 2:1 reduction in output filter inductor size.  
• Fixed 200kHz operation  
• 3.3V, 5V, and adjustable output versions  
• Voltage over specified line and load conditions:  
Fixed version: ±3% max. output voltage  
Adjustable version: ±2% max. feedback voltage  
• Guaranteed 3A switch current  
• Wide 4V to 36V input voltage range  
• Wide 1.23V to 33V output voltage range  
• Requires minimum external components  
• < 200µA typical shutdown mode  
The MIC4576 is available in 3.3V, and 5V fixed output  
versions or a 1.23V to 33V adjustable output version. Both  
versions are capable of driving a 3A load with excellent line  
and load regulation.  
The feedback voltage is guaranteed to ±2% tolerance for  
adjustable versions, and the output voltage is guaranteed to  
±3% for fixed versions, within specified voltages and load  
conditions. The oscillator frequency is guaranteed to ±10%.  
• 75% efficiency (adjustable version > 75% typical)  
• Standard inductors are 25% of typical LM2576 values  
• Thermal shutdown  
• Overcurrent protection  
In shutdown mode, the regulator draws less than 200µA  
standby current. The regulator performs cycle-by-cycle  
current limiting and thermal shutdown for protection under  
fault conditions.  
• 100% electrical thermal limit burn-in  
Applications  
• Simple high-efficiency step-down (buck) regulator  
• Efficient preregulator for linear regulators  
• On-card switching regulators  
• Positive-to-negative converter (inverting buck-boost)  
• Battery Charger  
• Negative boost converter  
This series of simple switch-mode regulators requires a  
minimum number of external components and can operate  
using a standard series of inductors. Frequency compensa-  
tion is provided internally.  
The MIC4576 is available in TO-220 (T) and TO-263 (U)  
packages for the industrial temperature range.  
• Step-down to 3.3V for Intel Pentium™  
and similar microprocessors  
Typical Applications  
L1  
5V/3A  
5
1
2
Shutdown  
Enable  
SHDN  
MIC4576-5.0BT  
VIN FB  
SW  
33µH  
8V to 36V  
4
C2  
1000µF  
16V  
C1  
470µF  
63V  
GND  
D1  
3
MBR360  
Fixed Regulator  
L1  
68µH  
12V/3A  
C2  
1000µF  
16V  
5
1
2
4
Shutdown  
Enable  
SHDN  
SW  
FB  
R2  
MIC4576BT  
13.0k  
1%  
16V to 36V  
VIN  
C1  
470µF  
63V  
GND  
3
R1  
1.50k  
1%  
MBR360  
Adjustable Regulator  
MIC4576  
4-128  
April 1998•  

与MIC4576-3.3BUT&R相关器件

型号 品牌 获取价格 描述 数据表
MIC4576-3.3WT MICREL

获取价格

200kHz Simple 3A Buck Regulator
MIC4576-3.3WU MICREL

获取价格

200kHz Simple 3A Buck Regulator
MIC4576-3.3WUTR MICROCHIP

获取价格

8.5A SWITCHING REGULATOR, 220kHz SWITCHING FREQ-MAX, PSSO5, ROHS COMPLIANT, TO-263, 5 PIN
MIC4576-3.3WU-TR MICROCHIP

获取价格

8.5A SWITCHING REGULATOR, 220kHz SWITCHING FREQ-MAX, PSSO5
MIC4576-5.0BT MICREL

获取价格

200kHz Simple 3A Buck Voltage Regulator
MIC4576-5.0BT MICROCHIP

获取价格

Switching Regulator, Voltage-mode, 8.5A, 220kHz Switching Freq-Max, BICMOS, PSFM5, TO-220,
MIC4576-5.0BU MICROCHIP

获取价格

Switching Regulator, Voltage-mode, 8.5A, 220kHz Switching Freq-Max, BICMOS, PSSO5, TO-263,
MIC4576-5.0BU MICREL

获取价格

200kHz Simple 3A Buck Voltage Regulator
MIC4576-5.0BUT&R MICROCHIP

获取价格

Switching Regulator, Voltage-mode, 8.5A, 220kHz Switching Freq-Max, BICMOS, PSSO5, TO-263,
MIC4576-5.0WT MICREL

获取价格

200kHz Simple 3A Buck Regulator