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线性和低压降 (LDO) 稳压器

LP3997

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具有电源正常指示和使能功能的 250mA、低压降稳压器

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LP3997

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产品详情

Rating Catalog Vin (max) (V) 6 Vin (min) (V) 2 Iout (max) (A) 0.25 Output options Fixed Output Vout (max) (V) 3.3 Vout (min) (V) 3.3 Fixed output options (V) 3.3 Noise (µVrms) 100 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.055 Features Enable, Power good Thermal resistance θJA (°C/W) 210 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 140 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 6 Vin (min) (V) 2 Iout (max) (A) 0.25 Output options Fixed Output Vout (max) (V) 3.3 Vout (min) (V) 3.3 Fixed output options (V) 3.3 Noise (µVrms) 100 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.055 Features Enable, Power good Thermal resistance θJA (°C/W) 210 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 140 Operating temperature range (°C) -40 to 125
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Low 140-mV Dropout at 250-mA Load
  • Stable With Ceramic Capacitor.
  • Low Noise With Bypass Capacitor
  • Less Than 80 µA Typical IQ at 250 mA
  • Virtually Zero IQ (Disabled)
  • Thermal and Short Circuit Protection
  • 3.3-V Output For other voltage options, contact your TI sales office
  • 8-Lead VSSOP Package For other package options, contact your TI sales office.

All trademarks are the property of their respective owners.

  • Low 140-mV Dropout at 250-mA Load
  • Stable With Ceramic Capacitor.
  • Low Noise With Bypass Capacitor
  • Less Than 80 µA Typical IQ at 250 mA
  • Virtually Zero IQ (Disabled)
  • Thermal and Short Circuit Protection
  • 3.3-V Output For other voltage options, contact your TI sales office
  • 8-Lead VSSOP Package For other package options, contact your TI sales office.

All trademarks are the property of their respective owners.

The LP3997 regulator is designed to meet the requirements of portable, battery-powered systems, providing accurate output voltage, low noise, and low quiescent current. The LP3997 provides 3.3V output at up to 250mA load current. The chip architecture is capable of providing output voltages as low as 0.8V. When switched in shutdown mode, the power consumption is virtually zero.

The LP3997 is designed to be stable with space saving ceramic output capacitor as small as 1µF.

The LP3997 also includes an out-of-regulation error flag. When the output is more than 5% below its nominal voltage, the error flag sets to low. If a capacitor is connected to device’s delay pin, a delayed power-on reset signal will be generated.

The LP3997 regulator is designed to meet the requirements of portable, battery-powered systems, providing accurate output voltage, low noise, and low quiescent current. The LP3997 provides 3.3V output at up to 250mA load current. The chip architecture is capable of providing output voltages as low as 0.8V. When switched in shutdown mode, the power consumption is virtually zero.

The LP3997 is designed to be stable with space saving ceramic output capacitor as small as 1µF.

The LP3997 also includes an out-of-regulation error flag. When the output is more than 5% below its nominal voltage, the error flag sets to low. If a capacitor is connected to device’s delay pin, a delayed power-on reset signal will be generated.
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类型 标题 下载最新的英语版本 日期
* 数据表 LP3997 Micropower 250mA CMOS LDO Regulator with Error Flag / Power-On-Reset 数据表 (Rev. B) 2013年 5月 3日
应用手册 AN-2146 Power Design for SDI and Other Noise-Sensitive Devices (Rev. A) 2013年 4月 26日

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封装 引脚 CAD 符号、封装和 3D 模型
VSSOP (DGK) 8 Ultra Librarian
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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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