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LM2575-3.3BT中文资料麦瑞半导体数据手册PDF规格书
LM2575-3.3BT规格书详情
General Description
The LM2575 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, 12V, fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 1A load with excellent line and load regulation.These regulators are simple to use because they require a minimum number of external components and include internal frequency compensation and a fixed-frequency oscillator. The LM2575 series offers a high efficiency replacement for popular three-terminal adjustable linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required. A standard series of inductors available from several different manufacturers are ideal for use with the LM2575 series. This
feature greatly simplifies the design of switch-mode power supplies.
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 1A 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:
LM2575-3.3BT
- 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:
固定
- 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):
3.3V
- 电流 - 输出:
1A
- 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 3.3V 1A TO220-5
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
Microchip |
21+ |
TO2635 |
13880 |
公司只售原装,支持实单 |
询价 | ||
MICROCHIP/微芯 |
23+ |
TO-263-5 |
13000 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
询价 | ||
MICREL |
TO-2205 |
68900 |
原包原标签100%进口原装常备现货! |
询价 | |||
Microchip |
22+ |
TO2635 |
9000 |
原厂渠道,现货配单 |
询价 | ||
MICREL |
05+ |
TO-2205 |
2500 |
询价 | |||
Micrel |
24+ |
TO-220-5 |
6359 |
原装现货 |
询价 | ||
MicrochipTechnology |
23+ |
TO-263-5 |
66800 |
优势价格原装正品 |
询价 | ||
Microchip Technology |
24+ |
TO-220-5 |
9350 |
独立分销商,公司只做原装,诚心经营,免费试样正品保证 |
询价 | ||
Microchip |
22+ |
TO-220-5 |
9000 |
原厂渠道,现货配单 |
询价 | ||
Microchip Technology |
22+ |
NA |
500000 |
万三科技,秉承原装,购芯无忧 |
询价 |