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线性和低压降 (LDO) 稳压器

LP3961

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具有使能功能的 800mA、高精度、低压降稳压器

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数据表

LP3961

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产品详情

Output options Fixed Output Iout (max) (A) 0.8 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) 150 Iq (typ) (mA) 4 Thermal resistance θJA (°C/W) 40 Rating Catalog Load capacitance (min) (µF) 33 Regulated outputs (#) 1 Features Enable Accuracy (%) 1 PSRR at 100 KHz (dB) 15 Dropout voltage (Vdo) (typ) (mV) 240 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.8 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) 150 Iq (typ) (mA) 4 Thermal resistance θJA (°C/W) 40 Rating Catalog Load capacitance (min) (µF) 33 Regulated outputs (#) 1 Features Enable Accuracy (%) 1 PSRR at 100 KHz (dB) 15 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-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • Input Supply Voltage: 2.5 V to 7 V
  • Ultra-Low Dropout Voltage
  • Low Ground Pin Current
  • Load Regulation of 0.02%
  • 15-µA Quiescent Current in Shutdown Mode
  • Specified Output Current of 0.8-A DC
  • Output Voltage Accuracy ±1.5%
  • ERROR Flag Indicates Output Status (LP3961)
  • Sense Option Improves Better Load Regulation
    (LP3964)
  • Extremely Low Output Capacitor Requirements
  • Overtemperature and Overcurrent Protection
  • −40°C to 125°C Junction Temperature Range
  • Input Supply Voltage: 2.5 V to 7 V
  • Ultra-Low Dropout Voltage
  • Low Ground Pin Current
  • Load Regulation of 0.02%
  • 15-µA Quiescent Current in Shutdown Mode
  • Specified Output Current of 0.8-A DC
  • Output Voltage Accuracy ±1.5%
  • ERROR Flag Indicates Output Status (LP3961)
  • Sense Option Improves Better Load Regulation
    (LP3964)
  • Extremely Low Output Capacitor Requirements
  • Overtemperature and Overcurrent Protection
  • −40°C to 125°C Junction Temperature Range

The LP396x 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 fast to step changes in load which makes them suitable for low-voltage microprocessor applications. The LP3961 and LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current, as well as operation under extremely low dropout conditions.

Dropout Voltage: Ultra-low dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 800-mA load current.

Ground Pin Current: Typically 4 mA at 800-mA load current.

ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value (for LP3961).

SENSE: SENSE pin improves regulation at remote loads (for LP3964).

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2 V to 5 V and adjustable (LP3964), with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).

The LP396x 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 fast to step changes in load which makes them suitable for low-voltage microprocessor applications. The LP3961 and LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current, as well as operation under extremely low dropout conditions.

Dropout Voltage: Ultra-low dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 800-mA load current.

Ground Pin Current: Typically 4 mA at 800-mA load current.

ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value (for LP3961).

SENSE: SENSE pin improves regulation at remote loads (for LP3964).

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2 V to 5 V and adjustable (LP3964), with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).
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* 数据表 LP396x 800-mA Fast Ultra-Low-Dropout Linear Regulators 数据表 (Rev. J) PDF | HTML 2015年 6月 18日

设计和开发

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封装 引脚 下载
SOT-223 (NDC) 5 查看选项
TO-263 (KTT) 5 查看选项
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  • 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
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  • 封装厂地点

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