MIC4576BU中文资料PDF规格书
| 厂商型号 |
MIC4576BU |
| 参数属性 | MIC4576BU 封装/外壳为TO-263-6，D²Pak（5 引线 + 接片），TO-263BA；包装为卷带（TR）剪切带（CT）；类别为集成电路（IC） > 稳压器 - DC-DC 开关稳压器；产品描述：IC REG BUCK ADJ 3A TO263-5 |
| 功能描述 | 200kHz Simple 3A Buck Voltage Regulator |
| 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 | 麦克雷尔|麦瑞半导体官网 |
| 原厂标识 |  |
| 数据手册 | |
| 更新时间 | 2024-6-18 12:34:00 |
MIC4576BU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：
MIC4576BU
- 制造商：
Microchip Technology
- 类别：
集成电路（IC） > 稳压器 - DC-DC 开关稳压器
- 包装：
卷带（TR）剪切带（CT）
- 功能：
降压
- 输出配置：
正
- 拓扑：
降压
- 输出类型：
可调式
- 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）：
1.23V
- 电压 - 输出（最大值）：
33V
- 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 ADJ 3A TO263-5
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
Micrel/Micrel Semiconductor, I |
21+ |
TO263 |
22 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
MIC |
23+ |
TO-263 |
20000 |
原厂原装正品现货 |
询价 | ||
MICREL |
2016+ |
TO-263 |
4732 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
Microchip |
21+ |
TO2635 |
610880 |
本公司只售原装 支持实单 |
询价 | ||
MICREL |
2023+ |
TO-263 |
5800 |
进口原装,现货热卖 |
询价 | ||
MIC |
2023+ |
3000 |
进口原装现货 |
询价 | |||
MICREL |
22+ |
TO-263 |
4897 |
绝对原装!现货热卖! |
询价 | ||
MIC |
19+ |
TO-263 |
84258 |
原厂代理渠道,每一颗芯片都可追溯原厂； |
询价 | ||
MicrochipTechnology |
23+ |
TO-263-5 |
66800 |
进口原装一级分销 |
询价 | ||
MICREL/麦瑞 |
23+ |
TO-263-5 |
6000 |
全新原装进口正品 |
询价 |
