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LP3981的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:线性和低压降 (LDO) 稳压器
  • 功能描述:具有使能功能的 300mA、高精度、低压降稳压器
  • 点击这里打开及下载LP3981的技术文档资料
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LP3981的产品详情:

Performance of the LP3981 device is optimized for battery-powered systems to deliver ultra-low-noise, extremely low dropout voltage, and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.

Power supply rejection is better than 60 dB at low frequencies. This high power supply rejection is maintained down to lower input voltage levels common to battery-operated circuits.

The device is ideal for mobile phone and similar battery-powered wireless applications. It provides up to 300 mA, from a 2.5-V to 6-V input, consuming less than 1 µA in disable mode.

The LP3981 is available in 8-pin VSSOP-8 and 6-pin WSON packages. Performance is specified for −40°C to +125°C temperature range. The device available in the following output voltages: 2.5 V, 2.7 V, 2.8 V, 2.83 V, 3 V, 3.03 V and 3.3 V as standard. Other output options can be made available; contact your local TI sales office for more information.

LP3981的优势和特性:
  • 2.5-V to 6-V Input Range
  • 300-mA Output Current
  • 60-dB PSRR at 1 kHz
  • ≤ 1-μA Quiescent Current When Shut Down
  • Fast Turnon Time: 120 μs (typical) with CBYPASS = 0.01 μF
  • 132-mV Typical Dropout with 300-mA Load
  • 35-μVrms Output Noise Over 10 Hz to 100 kHz
  • Logic Controlled Enable
  • Stable With Ceramic and High-Quality Tantalum Capacitors
  • Thermal Shutdown and Short-Circuit Current Limit
  • Low Thermal Resistance in WSON-6 Package Gives Excellent Power Capability
LP3981的参数(英文):
  • Output options
  • Fixed Output
  • Iout (Max) (A)
  • 0.3
  • Vin (Max) (V)
  • 6
  • Vin (Min) (V)
  • 2.7
  • Vout (Max) (V)
  • 3.3
  • Vout (Min) (V)
  • 2.5
  • Fixed output options (V)
  • 2.5, 2.7, 2.8, 3, 3.3
  • Noise (uVrms)
  • 35
  • Iq (Typ) (mA)
  • 0.07
  • Thermal resistance θJA (°C/W)
  • 57
  • Rating
  • Catalog
  • Load capacitance (Min) (μF)
  • 2.2
  • Regulated outputs (#)
  • 1
  • Features
  • Enable
  • Accuracy (%)
  • 2
  • PSRR @ 100 KHz (dB)
  • 25
  • Dropout voltage (Vdo) (Typ) (mV)
  • 132
  • Operating temperature range (C)
  • -40 to 125
LP3981具体的完整产品型号参数及价格(美元):

LP3981的完整型号有:LP3981ILD-2.5/NOPB、LP3981ILD-3.0/NOPB、LP3981ILD-3.3/NOPB、LP3981ILDX-2.5/NOPB、LP3981ILDX-2.7/NOPB、LP3981ILDX-2.8/NOPB、LP3981ILDX-2.83/NOPB、LP3981ILDX-3.03/NOPB、LP3981IMM-2.5/NOPB、LP3981IMM-2.7/NOPB、LP3981IMM-2.8/NOPB、LP3981IMM-3.0/NOPB、LP3981IMM-3.03/NOPB、LP3981IMM-3.3/NOPB、LP3981IMMX-2.5/NOPB、LP3981IMMX-3.3/NOPB、LP3981IMM-3.03、LP3981IMM-3.3,以下是这些产品的关键参数及官网采购报价:

LP3981ILD-2.5/NOPB,工作温度:-40 to 125,封装:WSON (NGC)-6,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LP3981ILD-2.5/NOPB的批量USD价格:.256(1000+)

LP3981ILD-3.0/NOPB,工作温度:PropertyValue,封装:WSON (NGC)-6,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LP3981ILD-3.0/NOPB的批量USD价格:.213(1000+)

LP3981ILD-3.3/NOPB,工作温度:-40 to 125,封装:WSON (NGC)-6,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LP3981ILD-3.3/NOPB的批量USD价格:.213(1000+)

LP3981ILDX-2.5/NOPB,工作温度:-40 to 125,封装:WSON (NGC)-6,包装数量MPQ:4500个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LP3981ILDX-2.5/NOPB的批量USD价格:.213(1000+)

LP3981ILDX-2.7/NOPB,工作温度:-40 to 125,封装:WSON (NGC)-6,包装数量MPQ:4500个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:NIPDAU,TI官网LP3981ILDX-2.7/NOPB的批量USD价格:.213(1000+)

LP3981ILDX-2.8/NOPB,工作温度:-40 to 125,封装:WSON (NGC)-6,包装数量MPQ:4500个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LP3981ILDX-2.8/NOPB的批量USD价格:.213(1000+)

LP3981ILDX-2.83/NOPB,工作温度:-40 to 125,封装:WSON (NGC)-6,包装数量MPQ:4500个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:NIPDAU,TI官网LP3981ILDX-2.83/NOPB的批量USD价格:.213(1000+)

LP3981ILDX-3.03/NOPB,工作温度:-40 to 125,封装:WSON (NGC)-6,包装数量MPQ:4500个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:SN,TI官网LP3981ILDX-3.03/NOPB的批量USD价格:.213(1000+)

LP3981IMM-2.5/NOPB,工作温度:-40 to 125,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LP3981IMM-2.5/NOPB的批量USD价格:.256(1000+)

LP3981IMM-2.7/NOPB,工作温度:-40 to 125,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LP3981IMM-2.7/NOPB的批量USD价格:.213(1000+)

LP3981IMM-2.8/NOPB,工作温度:-40 to 125,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LP3981IMM-2.8/NOPB的批量USD价格:.213(1000+)

LP3981IMM-3.0/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LP3981IMM-3.0/NOPB的批量USD价格:.213(1000+)

LP3981IMM-3.03/NOPB,工作温度:-40 to 125,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LP3981IMM-3.03/NOPB的批量USD价格:.213(1000+)

LP3981IMM-3.3/NOPB,工作温度:-40 to 125,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LP3981IMM-3.3/NOPB的批量USD价格:.256(1000+)

LP3981IMMX-2.5/NOPB,工作温度:-40 to 125,封装:VSSOP (DGK)-8,包装数量MPQ:3500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LP3981IMMX-2.5/NOPB的批量USD价格:.213(1000+)

LP3981IMMX-3.3/NOPB,工作温度:-40 to 125,封装:VSSOP (DGK)-8,包装数量MPQ:3500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LP3981IMMX-3.3/NOPB的批量USD价格:.213(1000+)

LP3981IMM-3.03,工作温度:-40 to 125,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:SNPB,TI官网LP3981IMM-3.03的批量USD价格:.288(1000+)

LP3981IMM-3.3,工作温度:-40 to 125,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:SNPB,TI官网LP3981IMM-3.3的批量USD价格:.33(1000+)

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