- 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 - 升压稳压器
- 功能描述:用于降压、升压、终端(具体取决于应用)的 2V 至 40V 开关稳压器
- 点击这里打开及下载LM3578A的技术文档资料
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The LM2578A is a switching regulator which can easily be set up for such DC-to-DC voltage conversion circuits as the buck, boost, and inverting configurations. The LM2578A features a unique comparator input stage which not only has separate pins for both the inverting and non-inverting inputs, but also provides an internal 1.0V reference to each input, thereby simplifying circuit design and p.c. board layout. The output can switch up to 750 mA and has output pins for its collector and emitter to promote design flexibility. An external current limit terminal may be referenced to either the ground or the Vin terminal, depending upon the application. In addition, the LM2578A has an on board oscillator, which sets the switching frequency with a single external capacitor from <1 Hz to 100 kHz (typical).
The LM2578A is an improved version of the LM2578, offering higher maximum ratings for the total supply voltage and output transistor emitter and collector voltages.
- Inverting and Non-Inverting Feedback Inputs
- 1.0V Reference at Inputs
- Operates from Supply Voltages of 2V to 40V
- Output Current up to 750 mA, Saturation Less than 0.9V
- Current Limit and Thermal Shut Down
- Duty Cycle up to 90%
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- Vin (Min) (V)
- 2
- Vin (Max) (V)
- 40
- Vout (Min) (V)
- 1
- Regulated outputs (#)
- 1
- Switching frequency (Min) (kHz)
- 1
- Switching frequency (Max) (kHz)
- 100
- Iq (Typ) (mA)
- 14
- Features
- UVLO Fixed
- Rating
- Catalog
LM3578A的完整型号有:LM3578AM/NOPB、LM3578AMX/NOPB、LM3578AN/NOPB、LM3578AM、LM3578AMX,以下是这些产品的关键参数及官网采购报价:
LM3578AM/NOPB,工作温度:0 to 125,封装:SOIC (D)-8,包装数量MPQ:95个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM3578AM/NOPB的批量USD价格:.997(1000+)
LM3578AMX/NOPB,工作温度:0 to 125,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM3578AMX/NOPB的批量USD价格:.627(1000+)
LM3578AN/NOPB,工作温度:0 to 125,封装:PDIP (P)-8,包装数量MPQ:40个,MSL 等级/回流焊峰值温度:Level-1-NA-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网LM3578AN/NOPB的批量USD价格:.956(1000+)
LM3578AM,工作温度:0 to 125,封装:SOIC (D)-8,包装数量MPQ:95个,MSL 等级/回流焊峰值温度:Level-1-235C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM3578AM的批量USD价格:1.288(1000+)
LM3578AMX,工作温度:0 to 125,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-235C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM3578AMX的批量USD价格:1.122(1000+)
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