LM2576BU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 |
LM2576BU |
| 参数属性 | LM2576BU 封装/外壳为TO-263-6,D²Pak(5 引线 + 接片),TO-263BA;包装为卷带(TR);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 ADJ 3A TO263-5 |
| 功能描述 | 52kHz Simple 3A Buck Regulator |
| 封装外壳 | TO-263-6,D²Pak(5 引线 + 接片),TO-263BA |
| 文件大小 |
64.3 Kbytes |
| 页面数量 |
9 页 |
| 生产厂商 | Micrel |
| 中文名称 | 麦瑞半导体 |
| 网址 | |
| 数据手册 | |
| 更新时间 | 2025-11-16 13:30:00 |
| 人工找货 | LM2576BU价格和库存,欢迎联系客服免费人工找货 |
LM2576BU规格书详情
General Description
The LM2576 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, or 12V fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 3A load with excellent line and load regulation.
特性 Features
• 3.3V, 5V, 12V, 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 output current
• Wide input voltage range: 4V to 40V
• Wide output voltage range 1.23V to 37V
• Requires only 4 external components
• 52kHz fixed frequency internal oscillator
• Low power standby mode IQ typically < 200µA
• 80 efficiency (adjustable version typically > 80)
• Uses readily available standard inductors
• Thermal shutdown and current limit protection
• 100 electrical thermal limit burn-in
Applications
• Simple high-efficiency step-down (buck) regulator
• Efficient pre-regulator for linear regulators
• On-card switching regulators
• Positive to negative converter (inverting Buck-Boost)
• Isolated Flyback Converter using minimum number of external components
• Negative Boost Converter
产品属性
- 产品编号:
LM2576BU
- 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)
- 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):
40V
- 电压 - 输出(最小值/固定):
1.23V
- 电压 - 输出(最大值):
37V
- 电流 - 输出:
3A
- 频率 - 开关:
52kHz
- 同步整流器:
无
- 工作温度:
-40°C ~ 125°C(TJ)
- 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 |
|---|---|---|---|---|---|---|---|
MIC |
24+ |
TO-2635 |
284 |
询价 | |||
MICROCHIP/微芯 |
2406+ |
33600 |
诚信经营!进口原装!量大价优! |
询价 | |||
MICREL/麦瑞 |
2025+ |
TO-263 |
800 |
原装进口价格优 请找坤融电子! |
询价 | ||
MIC |
23+ |
TO263 |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
Microchip |
22+ |
TO2635 |
9000 |
原厂渠道,现货配单 |
询价 | ||
MICREL/麦瑞 |
24+ |
TO263 |
22055 |
郑重承诺只做原装进口现货 |
询价 | ||
MICREL/麦瑞 |
1824+ |
TO-263 |
800 |
原装现货专业代理,可以代拷程序 |
询价 | ||
Microchip Technology |
24+ |
TO-263-5 |
65200 |
一级代理/放心采购 |
询价 | ||
Micrel Inc. |
22+ |
TO-263-6 |
9000 |
原厂渠道,现货配单 |
询价 | ||
NS |
06+ |
TO263 |
81 |
全新原装 绝对有货 |
询价 |

