
- 制造厂商:TI(德州仪器,Texas Instruments)
- 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:具有精密启用和无需外部补偿组件的低压同步降压控制器
- 点击这里打开及下载LM1771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

The LM1771 device is an efficient synchronous buck switching controller with a precision enable requiring no external compensation. The constant ON-time control scheme provides a simple design free of compensation components, allowing minimal component count and board space. The precision enable pin allows flexibility in sequencing multiple rails and setting UVLO. The LM1771 also incorporates a unique input feedforward to maintain a constant frequency independent of the input voltage. The LM1771 is optimized for a low-voltage input range of 2.8 V to 5.5 V and can provide an adjustable output as low as 0.8 V. Driving an external high-side PFET and low-side NFET, it can provide efficiencies as high as 95%.
Three versions of the LM1771 are available depending on the switching frequency desired for the application. Nominal switching frequencies are in the range of 100 kHz to 1000 kHz.
- Input Voltage Range of 2.8 V to 5.5 V
- 0.8-V Reference Voltage
- Precision Enable
- No Compensation Required
- Constant Frequency Across Input Range
- Low Quiescent Current of 400 A
- Internal Soft-Start
- Short Circuit Protection
- 6-Pin WSON Package and 8-Pin VSSOP Package
- Vin (Min) (V)
- 2.8
- Vin (Max) (V)
- 5.5
- Vout (Min) (V)
- 0.8
- Vout (Max) (V)
- 4.5
- Iout (Max) (A)
- 6
- Iq (Typ) (uA)
- 400
- Switching frequency (Min) (kHz)
- 500
- Switching frequency (Max) (kHz)
- 2000
- Features
- Enable
- Regulated outputs (#)
- 1
- Number of phases
- 1
- Rating
- Catalog
LM1771的完整型号有:LM1771SMM/NOPB、LM1771SSD/NOPB、LM1771TMM/NOPB、LM1771UMM/NOPB、LM1771USD/NOPB,以下是这些产品的关键参数及官网采购报价:
LM1771SMM/NOPB,工作温度:PropertyValue,封装:VSSOP (DGK)-8,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LM1771SMM/NOPB的批量USD价格:.726(1000+)
LM1771SSD/NOPB,工作温度:-40 to 125,封装:WSON (NGG)-6,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LM1771SSD/NOPB的批量USD价格:.726(1000+)
LM1771TMM/NOPB,工作温度:PropertyValue,封装:VSSOP (DGK)-8,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LM1771TMM/NOPB的批量USD价格:.726(1000+)
LM1771UMM/NOPB,工作温度:PropertyValue,封装:VSSOP (DGK)-8,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LM1771UMM/NOPB的批量USD价格:.726(1000+)
LM1771USD/NOPB,工作温度:-40 to 125,封装:WSON (NGG)-6,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LM1771USD/NOPB的批量USD价格:.726(1000+)

LM1771EVAL 具有精密启用和无需外部补偿组件的低压同步降压控制器
LM1771 Low-Voltage Synchronous Buck Controller with Precision Enable and No External Compensation
PSPICE-FOR-TI 适用于 TI 设计和模拟工具的 PSpice
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)






- MSP430F6779
- TPS62261
- TLK10002
- TPS1211-Q1
- TPS61256C
- PAL16R4AM
- SN54LVC14A-SP
- TPS64203
- SN74HCS138
- SCAN90004
- TPS79718-EP
- TMUX6236
- TFP401A-Q1
- TPS2021-Q1
- TPS61032
- CSD87355Q5D
- CD54HC85
- DAC7512
- PAL16L8A-2
- ISOW7821
- TPS40140RHHTG4
- CD4011UBNSR
- SN74S37DR
- 74FCT374ASCX
- MSP430FR6970IRGCR
- LP3891ES-1.2
- SG2524DR
- SN74HC368PWT
- INA132U
- SN74LVC2G79YEPR
- MAX3243CDB
- AMC1305M05DW
- SN74ABT646DWR
- PCA9306YZTR
- TPS76430DBVT
- LM3S8938-IQC50-A2
- LMR43620MSC3RPERQ1
- ADC121S051CIMF/NOPB
- TMS320C6416TBZLZA6
- LM4040AIM3X-2.0

