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LM3677的基本参数
  • 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:用于超低电压电路的 3MHz、600mA 微型降压直流/直流转换器
  • 点击这里打开及下载LM3677的技术文档资料
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LM3677的产品详情:

The LM3677 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7V to 5.5V. It provides up to 600 mA load current over the entire input voltage range. The LM3677 is configured to different fixed voltage output options as well as an adjustable output voltage version range from 1.2V to 3.3V.

The device offers superior features and performance for mobile phones and similar portable applications with complex power management systems. Automatic intelligent switching between PWM low-noise and PFM low-current mode offers improved system control. During PWM mode operation, the device operates at a fixed frequency of 3 MHz (typ). PWM mode drives loads from ~ 80 mA to 600 mA max. Hysteretic PFM mode extends the battery life by reducing the quiescent current to 16 µA (typ.) during light load and standby operation. Internal synchronous rectification provides high efficiency. In shutdown mode (Enable pin pulled down), the device turns off and reduces battery consumption to 0.01 µA (typ.).

The LM3677 is available in a lead-free (NOPB) 5-bump DSBGA package and 6-pin USON package. A switching frequency of 3 MHz (typ.) allows use of tiny surface-mount components. Only three external surface-mount components, an inductor and two ceramic capacitors, are required.

LM3677的优势和特性:
  • 16 μA typical quiescent current
  • 600 mA maximum load capability
  • 3 MHz PWM fixed switching frequency (typ.)
  • Automatic PFM/PWM mode switching
  • Available in 5-bump DSBGA package and 6-pin USON package
  • Internal synchronous rectification for high efficiency
  • Internal soft start
  • 0.01 μA typical shutdown current
  • Operates from a single Li-Ion cell battery
  • Only three tiny surface-mount external components required (solution size less than 20 mm2)
  • Current overload and thermal shutdown protection

All trademarks are the property of their respective owners.

LM3677的参数(英文):
  • Vin (Min) (V)
  • 2.7
  • Vin (Max) (V)
  • 5.5
  • Vout (Min) (V)
  • 1.2
  • Vout (Max) (V)
  • 3.3
  • Iout (Max) (A)
  • 0.6
  • Iq (Typ) (uA)
  • 16
  • Switching frequency (Min) (kHz)
  • 2500
  • Switching frequency (Max) (kHz)
  • 3500
  • Features
  • Enable, Light Load Efficiency, Synchronous Rectification
  • Rating
  • Catalog
  • Regulated outputs (#)
  • 1
  • Control mode
  • Voltage Mode
  • Duty cycle (Max) (%)
  • 100
LM3677具体的完整产品型号参数及价格(美元):

LM3677的完整型号有:LM3677LEE-1.2/NOPB、LM3677LEE-1.5/NOPB、LM3677LEE-1.8/NOPB、LM3677TL-1.2/NOPB、LM3677TL-1.8/NOPB、LM3677TL-2.5/NOPB、LM3677TL-ADJ/NOPB、LM3677TLX-1.8/NOPB,以下是这些产品的关键参数及官网采购报价:

LM3677LEE-1.2/NOPB,工作温度:PropertyValue,封装:USON (NGE)-6,包装数量MPQ:250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LM3677LEE-1.2/NOPB的批量USD价格:.535(1000+)

LM3677LEE-1.5/NOPB,工作温度:PropertyValue,封装:USON (NGE)-6,包装数量MPQ:250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LM3677LEE-1.5/NOPB的批量USD价格:.535(1000+)

LM3677LEE-1.8/NOPB,工作温度:PropertyValue,封装:USON (NGE)-6,包装数量MPQ:250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LM3677LEE-1.8/NOPB的批量USD价格:.535(1000+)

LM3677TL-1.2/NOPB,工作温度:PropertyValue,封装:DSBGA (YZR)-5,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNAGCU,TI官网LM3677TL-1.2/NOPB的批量USD价格:.535(1000+)

LM3677TL-1.8/NOPB,工作温度:-30 to 85,封装:DSBGA (YZR)-5,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNAGCU,TI官网LM3677TL-1.8/NOPB的批量USD价格:.642(1000+)

LM3677TL-2.5/NOPB,工作温度:-30 to 85,封装:DSBGA (YZR)-5,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNAGCU,TI官网LM3677TL-2.5/NOPB的批量USD价格:.535(1000+)

LM3677TL-ADJ/NOPB,工作温度:PropertyValue,封装:DSBGA (YZR)-5,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNAGCU,TI官网LM3677TL-ADJ/NOPB的批量USD价格:.535(1000+)

LM3677TLX-1.8/NOPB,工作温度:-30 to 85,封装:DSBGA (YZR)-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:SNAGCU,TI官网LM3677TLX-1.8/NOPB的批量USD价格:.535(1000+)

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