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- 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/升压和反相稳压器
- 功能描述:1.4MHz Cuk 转换器
- 点击这里打开及下载LM2611的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
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The LM2611 is a current mode, PWM inverting switching regulator. Operating from a 2.7-V to 4-V supply, it is capable of producing a regulated negative output voltage of up to &ndash(36 VIN(MAX)). The LM2611 utilizes an input and output inductor, which enables low voltage ripple and RMS current on both the input and the output. With a switching frequency of 1.4 MHz, the inductors and output capacitor can be physically small and low cost. High efficiency is achieved through the use of a low RDS(ON) FET.
The LM2611 features a shutdown pin, which can be activated when the part is not needed to lower the Iq and save battery life. A negative feedback (NFB) pin provides a simple method of setting the output voltage, using just two resistors. Cycle-by-cycle current limiting and internal compensation further simplify the use of the LM2611.
The LM2611 is available as a small 5-pin, SOT-23 package and comes in two grades. Grade A has a 1.2-A current limit and 0.5-Ω RDS(ON), and Grade B has a 0.9-A current limit and 0.7-Ω RDS(ON).
- 1.4-MHz Switching Frequency
- Low RDS(ON) DMOS FET
- 1-mVp-p Output Ripple
- –5 V at 300 mA From 5-V Input
- Better Regulation Than a Charge Pump
- Uses Tiny Capacitors and Inductors
- Wide Input Range: 2.7 V to 14 V
- Low Shutdown Current: <1 μA
- 5-Pin SOT-23 Package
- Topology
- CuK, Inverting
- Vin (Min) (V)
- 2.7
- Vin (Max) (V)
- 14
- Vout (Max) (V)
- -1.23
- Vout (Min) (V)
- -32
- Features
- Light Load Efficiency
- Switch current limit (Typ) (A)
- 1.2
- Switching frequency (Min) (kHz)
- 1400
- Switching frequency (Max) (kHz)
- 1400
- Iq (Typ) (mA)
- 1.8
- Iout (Max) (A)
- 0.4
- Rating
- Catalog
LM2611的完整型号有:LM2611AMF/NOPB、LM2611AMFX/NOPB、LM2611BMF/NOPB、LM2611BMFX/NOPB、LM2611AMF,以下是这些产品的关键参数及官网采购报价:
LM2611AMF/NOPB,工作温度:-40 to 125,封装:SOT-23 (DBV)-5,包装数量MPQ:1000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LM2611AMF/NOPB的批量USD价格:1.559(1000+)
LM2611AMFX/NOPB,工作温度:-40 to 125,封装:SOT-23 (DBV)-5,包装数量MPQ:3000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LM2611AMFX/NOPB的批量USD价格:1.319(1000+)
LM2611BMF/NOPB,工作温度:-40 to 125,封装:SOT-23 (DBV)-5,包装数量MPQ:1000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LM2611BMF/NOPB的批量USD价格:1.499(1000+)
LM2611BMFX/NOPB,工作温度:-40 to 125,封装:SOT-23 (DBV)-5,包装数量MPQ:3000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LM2611BMFX/NOPB的批量USD价格:1.259(1000+)
LM2611AMF,工作温度:-40 to 125,封装:SOT-23 (DBV)-5,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM2611AMF的批量USD价格:1.978(1000+)
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LM2611EVAL — 1.4MHz Cuk 转换器
1.4MHz Cuk Converter
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