Datasheet Texas Instruments LM25085SDE/NOPB — 数据表
| 制造商 | Texas Instruments |
| 系列 | LM25085 |
| 零件号 | LM25085SDE/NOPB |
4.5-42V宽输入电压，恒定导通时间非同步PFET降压控制器8-WSON -40至125
数据表
LM25085 / -Q1 42V Constant On-Time PFET Buck Switching Controller datasheet
PDF, 1.7 Mb, 修订版: J, 档案已发布: Nov 3, 2014
从文件中提取
价格
状态
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
打包
| Pin | 8 |
| Package Type | NGQ |
| Industry STD Term | WSON |
| JEDEC Code | S-PDSO-N |
| Package QTY | 250 |
| Carrier | SMALL T&R |
| Device Marking | L246B |
| Width (mm) | 3 |
| Length (mm) | 3 |
| Thickness (mm) | .8 |
| Pitch (mm) | .5 |
| Max Height (mm) | .8 |
| Mechanical Data | 下载 |
参数化
| Control Mode | Constant on-time (COT) |
| Duty Cycle(Max) | 100 % |
| Iout(Max) | 10 A |
| Iq(Typ) | 1.25 mA |
| Number of Phases | 1 |
| Operating Temperature Range | -40 to 125 C |
| Package Group | WSON |
| Rating | Catalog |
| Regulated Outputs | 1 |
| Special Features | Adjustable Current Limit,Frequency Synchronization |
| Switching Frequency(Max) | 1000 kHz |
| Switching Frequency(Min) | 50 kHz |
| Type | Controller |
| Vin(Max) | 42 V |
| Vin(Min) | 4.5 V |
| Vout(Max) | 42 V |
| Vout(Min) | 1.25 V |
生态计划
| RoHS | Compliant |
设计套件和评估模块
- Evaluation Modules & Boards: LM25085MYEVAL
Evaluation Board for LM25085 - 42V Wide Vin Constant On-Time PFET Buck Switching Controller
Lifecycle Status: Active (Recommended for new designs)
应用须知
- Automated Frequency Response AnalyzerPDF, 939 Kb, 档案已发布: Oct 9, 2013
This application report discusses a new method of doing stability Analysis testing by using basic labequipment, while not requiring any specific instruments. - Constant Current Constant Voltage Buck Converter w/LM25085 (Rev. A)PDF, 377 Kb, 修订版: A, 档案已发布: Apr 23, 2013
In many applications, a constant-current constant-voltage (CC/CV) dc source is needed. The I-Vcharacteristic of a constant-current constant-voltage (CC/CV) source is shown in Figure 1. This applicationreport presents an external op-amp based accurate current limit circuit suitable for CC/CV operation whenthe required constant current range is very narrow. - Transient Response versus Ripple – An Analysis of Ripple Injection TechniquesPDF, 2.9 Mb, 档案已发布: Apr 28, 2014
In this application note the implications of ripple injection techniques, aimed at minimizingoutput ripple voltage, on the transient response of a supply are highlighted. The results help choose a suitable ripple injection technique after striking a balance between the output ripple voltage and the transient response required by the load.
模型线
系列: LM25085 (8)
制造商分类
- Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Down (Buck) > Buck Controller (External Switch)