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Description
The series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V,
5V, 12V, 15V, and an adjustable output versions. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator. The series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in some cases no heat sink is required. A standard series of inductors optimized for use with the are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies. Other features include a guaranteed ± 4 tolerance on output voltage within specified input voltages and output load conditions, and ±10 on the oscillator frequency. External
shutdown is included, featuring 50μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.
Features
• 3.3V, 5V, 12V, 15V, and adjustable output versions
• Adjustable version output voltage range
• 1.23V to 37V (57V for HV version) ±4 max over line and load conditions
• Guaranteed 3A output current
• Wide input voltage range, 40V up to57V for HV version
• Requires only 4 external components
• 52 kHz fixed frequency oscillator
• TTL shutdown capability, low power standby mode
• High efficiency
• Uses readily available standard inductors
• Thermal shutdown and current limit protection
Applications
• Simple high-efficiency step-down (buck) regulator
• Efficient pre-regulator for linear regulators
• On-card switching regulators
• Positive to negative converter (Buck-Boost)
产品属性
- 产品编号:
LM2576HVT-ADJ
- 制造商:
Texas Instruments
- 类别:
集成电路(IC) > 稳压器 - DC-DC 开关稳压器
- 系列:
SIMPLE SWITCHER®
- 包装:
管件
- 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):
60V
- 电压 - 输出(最小值/固定):
1.23V
- 电压 - 输出(最大值):
57V
- 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 |
---|---|---|---|---|---|---|---|
TI(德州仪器) |
22+ |
TSSOP |
8000 |
询价 | |||
TI(德州仪器) |
23+ |
TO-220-5 |
5094 |
百分百原装正品,可原型号开票 |
询价 | ||
NS |
2016+ |
TO-220 |
3000 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
NS |
23+ |
NA |
20000 |
全新原装假一赔十 |
询价 | ||
NSC |
23+ |
TO220 |
20000 |
原厂原装正品现货 |
询价 | ||
NSC |
2020+ |
TO-220-5 |
16800 |
绝对原装进口现货,假一赔十,价格优势!? |
询价 | ||
NS |
2023+ |
TO220 |
8800 |
正品渠道现货 终端可提供BOM表配单。 |
询价 | ||
HGSEMI(华冠) |
23+ |
TO-220-5 |
100000 |
DC-DC 电源芯片,一级代理 |
询价 | ||
TO220-5 |
23+ |
NA |
15659 |
振宏微专业只做正品,假一罚百! |
询价 | ||
TI/德州仪器 |
22+ |
NA |
10000 |
绝对原装现货热卖 |
询价 |