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MIC4576-3.3BU集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料
| 厂商型号 |
MIC4576-3.3BU |
| 参数属性 | MIC4576-3.3BU 封装/外壳为TO-263-6，D²Pak（5 引线 + 接片），TO-263BA；包装为散装；类别为集成电路（IC）的稳压器-DC-DC开关稳压器；产品描述：IC REG BUCK 3.3V 3A TO263-5 |
| 功能描述 | 200kHz Simple 3A Buck Voltage Regulator |
| 封装外壳 | TO-263-6，D²Pak（5 引线 + 接片），TO-263BA |
| 文件大小 |
71.45 Kbytes |
| 页面数量 |
7 页 |
| 生产厂商 | Micrel Semiconductor |
| 企业简称 |
MICREL【麦瑞半导体】 |
| 中文名称 | 麦瑞半导体官网 |
| 原厂标识 |  |
| 数据手册 | |
| 更新时间 | 2025-5-28 22:30:00 |
| 人工找货 | MIC4576-3.3BU价格和库存，欢迎联系客服免费人工找货 |
MIC4576-3.3BU规格书详情
General Description
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.
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.
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.
This series of simple switch-mode regulators requires a minimum number of external components and can operate using a standard series of inductors. Frequency compensation is provided internally.
The MIC4576 is available in TO-220 (T) and TO-263 (U) packages for the industrial temperature range.
Features
• 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
• 75 efficiency (adjustable version > 75 typical)
• Standard inductors are 25 of typical LM2576 values
• Thermal shutdown
• Overcurrent protection
• 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
• Step-down to 3.3V for Intel Pentium™
and similar microprocessors
产品属性
- 产品编号：
MIC4576-3.3BU
- 制造商：
Microchip Technology
- 类别：
集成电路（IC） > 稳压器 - DC-DC 开关稳压器
- 包装：
散装
- 功能：
降压
- 输出配置：
正
- 拓扑：
降压
- 输出类型：
固定
- 输出数：
1
- 电压 - 输入（最小值）：
4V
- 电压 - 输入（最大值）：
36V
- 电压 - 输出（最小值/固定）：
3.3V
- 电流 - 输出：
3A
- 频率 - 开关：
200kHz
- 同步整流器：
无
- 工作温度：
-40°C ~ 85°C（TA）
- 安装类型：
表面贴装型
- 封装/外壳：
TO-263-6，D²Pak（5 引线 + 接片），TO-263BA
- 供应商器件封装：
TO-263-5
- 描述：
IC REG BUCK 3.3V 3A TO263-5
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
MIC |
24+ |
TO-263 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
MIC |
24+ |
TO-263 |
20000 |
全新原厂原装，进口正品现货，正规渠道可含税！！ |
询价 | ||
MICREL |
20+ |
TO-263-5 |
500 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
MICREL/麦瑞 |
24+ |
TO-263-5 |
502610 |
免费送样原盒原包现货一手渠道联系 |
询价 | ||
MicrochipTechnology |
24+ |
TO-263-5 |
66800 |
原厂授权一级代理,专注汽车、医疗、工业、新能源！ |
询价 | ||
MICREL |
23+ |
TO263-5 |
11923 |
询价 | |||
MICREL |
2023+ |
TO-263 |
5800 |
进口原装,现货热卖 |
询价 | ||
MIC |
1816+ |
. |
6523 |
科恒伟业!只做原装正品,假一赔十! |
询价 | ||
MICREL |
23+ |
TO263-5 |
65600 |
询价 | |||
MICREL |
24+ |
TO-263-5 |
56000 |
公司进口原装现货 批量特价支持 |
询价 |
