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线性和低压降 (LDO) 稳压器

LP3855

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具有使能功能的 1.5A、7V、超低压降稳压器

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数据表

LP3855

正在供货
数据表 立即订购

产品详情

Output options Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 7 Vin (min) (V) 2.5 Vout (max) (V) 5 Vout (min) (V) 1.8 Fixed output options (V) 1.8, 2.5, 3.3, 5 Noise (µVrms) 100 Iq (typ) (mA) 4 Thermal resistance θJA (°C/W) 32 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 240 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 7 Vin (min) (V) 2.5 Vout (max) (V) 5 Vout (min) (V) 1.8 Fixed output options (V) 1.8, 2.5, 3.3, 5 Noise (µVrms) 100 Iq (typ) (mA) 4 Thermal resistance θJA (°C/W) 32 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 240 Operating temperature range (°C) -40 to 125
SOT-223 (NDC) 5 45.24 mm² 6.5 x 6.96 TO-220 (NDH) 5 86.0552 mm² 10.16 x 8.47 TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • Input Supply Voltage: 2.5 V to 7 V
  • Ultra-Low Dropout Voltage
  • Stable with Selected Ceramic Capacitors
  • Low Ground-Pin Current
  • Load Regulation of 0.06%
  • 10-nA Quiescent Current in Shutdown Mode
  • Specified Output Current of 1.5 A DC
  • Output Voltage Accuracy ± 1.5%
  • ERROR Pin Indicates Output Status
  • SENSE Option Improves Load Regulation
  • Overtemperature/Overcurrent Protection
  • −40°C to 125°C Junction Temperature Range
  • Input Supply Voltage: 2.5 V to 7 V
  • Ultra-Low Dropout Voltage
  • Stable with Selected Ceramic Capacitors
  • Low Ground-Pin Current
  • Load Regulation of 0.06%
  • 10-nA Quiescent Current in Shutdown Mode
  • Specified Output Current of 1.5 A DC
  • Output Voltage Accuracy ± 1.5%
  • ERROR Pin Indicates Output Status
  • SENSE Option Improves Load Regulation
  • Overtemperature/Overcurrent Protection
  • −40°C to 125°C Junction Temperature Range

The LP3852 and LP3855 series of fast ultra-low dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3852 and LP3855 are developed on a CMOS process which allows low quiescent-current operation independent of output load current, typically 4 mA at 1.5-A load current. This CMOS process also allows the LP3852 and LP3855 to operate under extremely low dropout conditions, typically 24 mV at 150-mA load current and 240 mV at 1.5-A load current.

The LP3852 has an ERROR pin; it goes low when the output voltage drops 10% below nominal value. The LP3855 has a SENSE pin to improves regulation at remote loads.

The LP3852 and LP3855 are available with fixed output voltages from 1.8 V to 5 V with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature). Contact Texas Instruments Sales for specific voltage option needs.

The LP3852 and LP3855 series of fast ultra-low dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3852 and LP3855 are developed on a CMOS process which allows low quiescent-current operation independent of output load current, typically 4 mA at 1.5-A load current. This CMOS process also allows the LP3852 and LP3855 to operate under extremely low dropout conditions, typically 24 mV at 150-mA load current and 240 mV at 1.5-A load current.

The LP3852 has an ERROR pin; it goes low when the output voltage drops 10% below nominal value. The LP3855 has a SENSE pin to improves regulation at remote loads.

The LP3852 and LP3855 are available with fixed output voltages from 1.8 V to 5 V with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature). Contact Texas Instruments Sales for specific voltage option needs.
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* 数据表 LP385x 1.5-A Fast Response Ultra-Low Dropout Linear Regulators 数据表 (Rev. I) PDF | HTML 2015年 2月 18日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

封装 引脚 下载
SOT-223 (NDC) 5 查看选项
TO-220 (NDH) 5 查看选项
TO-263 (KTT) 5 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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