Datasheet Texas Instruments LM25019 — 数据表
| 制造商 | Texas Instruments |
| 系列 | LM25019 |
7.5-48V宽输入电压，100mA恒定导通时间同步降压稳压器
数据表
LM25019 48-V, 100-mA Constant On-Time Synchronous Buck Regulator datasheet
PDF, 1.3 Mb, 修订版: E, 档案已发布: Nov 8, 2015
从文件中提取
价格
状态
| LM25019MR/NOPB | LM25019MRE/NOPB | LM25019MRX/NOPB | LM25019SD/NOPB | LM25019SDE/NOPB | LM25019SDX/NOPB | |
|---|---|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | Yes | No | Yes | No | No |
打包
| LM25019MR/NOPB | LM25019MRE/NOPB | LM25019MRX/NOPB | LM25019SD/NOPB | LM25019SDE/NOPB | LM25019SDX/NOPB | |
|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 |
| Pin | 8 | 8 | 8 | 8 | 8 | 8 |
| Package Type | DDA | DDA | DDA | NGU | NGU | NGU |
| Industry STD Term | HSOIC | HSOIC | HSOIC | WSON | WSON | WSON |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | S-PDSO-N | S-PDSO-N | S-PDSO-N |
| Package QTY | 95 | 250 | 2500 | 1000 | 250 | 4500 |
| Carrier | TUBE | SMALL T&R | LARGE T&R | LARGE T&R | SMALL T&R | LARGE T&R |
| Device Marking | MR | L25019 | MR | L25019 | L25019 | L25019 |
| Width (mm) | 3.9 | 3.9 | 3.9 | 4 | 4 | 4 |
| Length (mm) | 4.89 | 4.89 | 4.89 | 4 | 4 | 4 |
| Thickness (mm) | 1.48 | 1.48 | 1.48 | .8 | .8 | .8 |
| Pitch (mm) | 1.27 | 1.27 | 1.27 | .8 | .8 | .8 |
| Max Height (mm) | 1.7 | 1.7 | 1.7 | .8 | .8 | .8 |
| Mechanical Data | 下载 | 下载 | 下载 | 下载 | 下载 | 下载 |
参数化
| Parameters / Models | LM25019MR/NOPB | LM25019MRE/NOPB | LM25019MRX/NOPB | LM25019SD/NOPB | LM25019SDE/NOPB | LM25019SDX/NOPB |
|---|---|---|---|---|---|---|
| Control Mode | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) |
| Duty Cycle(Max), % | 90 | 90 | 90 | 90 | 90 | 90 |
| Iout(Max), A | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Iq(Typ), mA | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 |
| Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Package Group | SO PowerPAD | SO PowerPAD | SO PowerPAD | WSON | WSON | WSON |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Regulated Outputs | 1 | 1 | 1 | 1 | 1 | 1 |
| Special Features | Synchronous Rectification,UVLO Adjustable | Synchronous Rectification,UVLO Adjustable | Synchronous Rectification,UVLO Adjustable | Synchronous Rectification,UVLO Adjustable | Synchronous Rectification,UVLO Adjustable | Synchronous Rectification,UVLO Adjustable |
| Switching Frequency(Max), kHz | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Switching Frequency(Min), kHz | 50 | 50 | 50 | 50 | 50 | 50 |
| Type | Converter | Converter | Converter | Converter | Converter | Converter |
| Vin(Max), V | 48 | 48 | 48 | 48 | 48 | 48 |
| Vin(Min), V | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 |
| Vout(Max), V | 40 | 40 | 40 | 40 | 40 | 40 |
| Vout(Min), V | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 |
生态计划
| LM25019MR/NOPB | LM25019MRE/NOPB | LM25019MRX/NOPB | LM25019SD/NOPB | LM25019SDE/NOPB | LM25019SDX/NOPB | |
|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
应用须知
- Fly-Buck(TM) converter provides EMC and isolation in PLC applicationsPDF, 201 Kb, 档案已发布: Jan 29, 2015
- LM5019 Buck Evaluation Board (Rev. A)PDF, 890 Kb, 修订版: A, 档案已发布: Apr 30, 2013
The LM5019 evaluation board provides the design engineer with a fully functional buck regulator,employing the constant on-time (COT) operating principle. This evaluation board provides a 10V outputover an input range of 12.5V to 100V. - AN-2292 Designing an Isolated Buck (Fly-Buck) Converter (Rev. C)PDF, 870 Kb, 修订版: C, 档案已发布: Dec 17, 2014
In many applications, one or more low-cost, simple to use, isolated power supplies working from input voltages up to 100 V are needed. Traditional solutions use flyback converters to generate this bias supply. Flyback designs typically utilize asymmetric transformers turns ratios for primary and secondary power windings, with an optocoupler and reference, or an auxiliary winding for feedback regul
模型线
系列: LM25019 (6)
制造商分类
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Converter (Integrated Switch)