LM2576BT中文资料PDF规格书
LM2576BT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.
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:
LM2576BT
- 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):
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:
通孔
- 封装/外壳:
TO-220-5
- 供应商器件封装:
TO-220-5
- 描述:
IC REG BUCK ADJ 3A TO220-5
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MICREL |
2020+ |
TO220-5 |
413 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
询价 | ||
MICREL |
23+ |
TO220 |
3000 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
Microchip |
23+ |
TO2205 |
9000 |
原装正品,支持实单 |
询价 | ||
MICREL |
2023+ |
TO-220 |
4816 |
全新原厂原装产品、公司现货销售 |
询价 | ||
MIC |
23+ |
TO-263 |
7800 |
全新原装正品,现货销售 |
询价 | ||
MIC |
2048+ |
TO-220-5 |
9851 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
MICREL/麦瑞 |
TO220 |
265209 |
假一罚十原包原标签常备现货! |
询价 | |||
MICREL |
23+ |
NA |
6500 |
全新原装假一赔十 |
询价 | ||
MICREL-麦瑞 |
24+25+/26+27+ |
TO-220-5 |
18800 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 | ||
micrel |
2023+ |
原厂封装 |
50000 |
原装现货 |
询价 |