LM2594: 0.5 A, 150 kHz Buck Switching Regulator
The LM2594 series of Buck Switching Regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. Requiring a minimum number of external components, these Buck Switching Regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator. The LM2594 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 8-lead PDIP package and 8-lead SOIC surface mount package. A standard series of inductors are available from several different manufacturers optimized for use with the LM2594 series. This feature greatly simplifies the design of switch-mode power supplies. Other features include a guaranteed +/-4% tolerance on output voltage under specified input voltage and output load conditions, and +/-15% on the oscillator frequency. External shutdown is included, featuring typically 80 µA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. See LM2596 for 3.0A and LM2595 for 1.0A.
技术特性
- Adjustable Output Voltage Range 1.23 V − 37 V
- Guaranteed 0.5 A Output Load Current
- Wide Input Voltage Range up to 40 V
- 150 kHz Fixed Frequency Internal Oscillator
- TTL Shutdown Capability
- Low Power Standby Mode, typ 50 A
- Thermal Shutdown and Current Limit Protection
- Internal Loop Compensation
- Moisture Sensitivity Level (MSL) Equals 1
- These are Pb−Free Devices
终端产品
|
应用
- Simple high-efficiency step-down (buck) regulator
- On-card switching regulators
- Positive to negative converter
封装图 PACKAGE DIMENSIONS
|
评估板信息
订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| LM2594DADJG |
Last Shipments  |
|
0.5 A, 150 kHz Buck Switching Regulator |
SOIC-8 |
751-07 |
1 |
Tube |
98 |
|
| LM2594DADJR2G |
Active |
|
0.5 A, 150 kHz Buck Switching Regulator |
SOIC-8 |
751-07 |
1 |
Tape and Reel |
2500 |
$0.6 |
| LM2594PADJG |
Lifetime |
|
0.5 A, 150 kHz Buck Switching Regulator |
PDIP-8 |
626-05 |
|
Tube |
50 |
$0.7333 |
数据资料DataSheet下载
