- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:直流/直流开关稳压器 - 降压稳压器
- 功能描述:SIMPLE SWITCHER 电源转换器 150 KHz 1A 降压电压稳压器
- 点击这里打开及下载LM2595的技术文档资料
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The LM2595 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version.
Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator.
The LM2595 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 5-pin TO-220 package with several different lead bend options, and a 5-pin TO-263 surface-mount package. Typically, for output voltages less than
12 V, and ambient temperatures less than 50°C, no heat sink is required.
A standard series of inductors are available from several different manufacturers optimized for use with the LM2595 series. This feature greatly simplifies the design of switch-mode power supplies.
Other features include a ±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 85-µA stand-by current. Self protection features include a two stage frequency reducing current limit for the output switch and an overtemperature shutdown for complete protection under fault conditions.
- 3.3-V, 5-V, 12-V, and Adjustable Output Versions
- Adjustable Version Output Voltage Range, 1.2 V to 37 V ±4% Maximum Over Line and Load Conditions
- Available in TO-220 and TO-263 Surface-Mount Packages
- Ensured 1-A Output Load Current
- Input Voltage Range Up to 40 V
- Requires Only 4 External Components
- Excellent Line and Load Regulation Specifications
- 150-kHz Fixed-Frequency Internal Oscillator
- TTL Shutdown Capability
- Low Power Standby Mode, IQ, Typically 85μA
- High Efficiency
- Uses Readily Available Standard Inductors
- Thermal Shutdown and Current-Limit Protection
- Vin (Min) (V)
- 4.5
- Vin (Max) (V)
- 40
- Vout (Min) (V)
- 3.3
- Vout (Max) (V)
- 37
- Iout (Max) (A)
- 1
- Iq (Typ) (uA)
- 5000
- Switching frequency (Min) (kHz)
- 110
- Switching frequency (Max) (kHz)
- 173
- Features
- Enable, Over Current Protection
- Rating
- Catalog
- Regulated outputs (#)
- 1
- Control mode
- Voltage Mode
- Duty cycle (Max) (%)
- 100
LM2595的完整型号有:LM2595S-12/NOPB、LM2595S-3.3/NOPB、LM2595S-5.0/NOPB、LM2595S-ADJ/NOPB、LM2595SX-12/NOPB、LM2595SX-3.3/NOPB、LM2595SX-5.0/NOPB、LM2595SX-ADJ/NOPB、LM2595T-12/NOPB、LM2595T-3.3/NOPB、LM2595T-5.0/NOPB、LM2595T-ADJ/NOPB、LM2595S-12、LM2595S-3.3、LM2595S-5.0、LM2595S-ADJ、LM2595SX-ADJ,以下是这些产品的关键参数及官网采购报价:
LM2595S-12/NOPB,工作温度:-40 to 125,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-3-245C-168 HR,引脚镀层/焊球材料:SN,TI官网LM2595S-12/NOPB的批量USD价格:2.112(1000+)
LM2595S-3.3/NOPB,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-3-245C-168 HR,引脚镀层/焊球材料:SN,TI官网LM2595S-3.3/NOPB的批量USD价格:2.112(1000+)
LM2595S-5.0/NOPB,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-3-245C-168 HR,引脚镀层/焊球材料:SN,TI官网LM2595S-5.0/NOPB的批量USD价格:2.112(1000+)
LM2595S-ADJ/NOPB,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-3-245C-168 HR,引脚镀层/焊球材料:SN,TI官网LM2595S-ADJ/NOPB的批量USD价格:2.112(1000+)
LM2595SX-12/NOPB,工作温度:-40 to 125,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:500个,MSL 等级/回流焊峰值温度:Level-3-245C-168 HR,引脚镀层/焊球材料:SN,TI官网LM2595SX-12/NOPB的批量USD价格:1.76(1000+)
LM2595SX-3.3/NOPB,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:500个,MSL 等级/回流焊峰值温度:Level-3-245C-168 HR,引脚镀层/焊球材料:SN,TI官网LM2595SX-3.3/NOPB的批量USD价格:1.76(1000+)
LM2595SX-5.0/NOPB,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:500个,MSL 等级/回流焊峰值温度:Level-3-245C-168 HR,引脚镀层/焊球材料:SN,TI官网LM2595SX-5.0/NOPB的批量USD价格:1.76(1000+)
LM2595SX-ADJ/NOPB,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:500个,MSL 等级/回流焊峰值温度:Level-3-245C-168 HR,引脚镀层/焊球材料:SN,TI官网LM2595SX-ADJ/NOPB的批量USD价格:1.76(1000+)
LM2595T-12/NOPB,工作温度:-40 to 125,封装:TO-220 (NDH)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-1-NA-UNLIM,引脚镀层/焊球材料:SN,TI官网LM2595T-12/NOPB的批量USD价格:1.76(1000+)
LM2595T-3.3/NOPB,工作温度:PropertyValue,封装:TO-220 (NDH)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-1-NA-UNLIM,引脚镀层/焊球材料:SN,TI官网LM2595T-3.3/NOPB的批量USD价格:1.76(1000+)
LM2595T-5.0/NOPB,工作温度:PropertyValue,封装:TO-220 (NDH)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-1-NA-UNLIM,引脚镀层/焊球材料:SN,TI官网LM2595T-5.0/NOPB的批量USD价格:1.76(1000+)
LM2595T-ADJ/NOPB,工作温度:PropertyValue,封装:TO-220 (NDH)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-1-NA-UNLIM,引脚镀层/焊球材料:SN,TI官网LM2595T-ADJ/NOPB的批量USD价格:1.76(1000+)
LM2595S-12,工作温度:-40 to 125,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-3-235C-168 HR,引脚镀层/焊球材料:SNPB,TI官网LM2595S-12的批量USD价格:2.904(1000+)
LM2595S-3.3,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-3-235C-168 HR,引脚镀层/焊球材料:SNPB,TI官网LM2595S-3.3的批量USD价格:2.904(1000+)
LM2595S-5.0,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-3-235C-168 HR,引脚镀层/焊球材料:SNPB,TI官网LM2595S-5.0的批量USD价格:2.904(1000+)
LM2595S-ADJ,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:45个,MSL 等级/回流焊峰值温度:Level-3-235C-168 HR,引脚镀层/焊球材料:SNPB,TI官网LM2595S-ADJ的批量USD价格:2.904(1000+)
LM2595SX-ADJ,工作温度:PropertyValue,封装:DDPAK/TO-263 (KTT)-5,包装数量MPQ:500个,MSL 等级/回流焊峰值温度:Level-3-235C-168 HR,引脚镀层/焊球材料:SNPB,TI官网LM2595SX-ADJ的批量USD价格:2.464(1000+)
LM2595_ADJ PSpice Transient Model
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