LP2953

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具有电源正常指示和使能功能的 250mA、30V、低压降稳压器

产品详情

Output options Adjustable Output Iout (max) (A) 0.25 Vin (max) (V) 30 Vin (min) (V) -20 Vout (max) (V) 29 Vout (min) (V) 1.23 Noise (µVrms) 80 Iq (typ) (mA) 0.13 Thermal resistance θJA (°C/W) 42 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Output discharge, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 32 Dropout voltage (Vdo) (typ) (mV) 470 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.25 Vin (max) (V) 30 Vin (min) (V) -20 Vout (max) (V) 29 Vout (min) (V) 1.23 Noise (µVrms) 80 Iq (typ) (mA) 0.13 Thermal resistance θJA (°C/W) 42 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Output discharge, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 32 Dropout voltage (Vdo) (typ) (mV) 470 Operating temperature range (°C) -40 to 125
SOIC (D) 16 59.4 mm² 9.9 x 6
  • 2.3-V to 30-V Input Voltage Range
  • Output Voltage Adjusts from 1.23 V to 29 V
  • 250-mA Output Current
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Extremely Tight Line and Load Regulation
  • Very Low Temperature Coefficient
  • Current and Thermal Limiting
  • Reverse Battery-Input Protection
  • 50-mA (Typical) Automatic Output Discharge
  • LP2953 Versions Only
    • Auxiliary Comparator Included With CMOS-
      and TTL-Compatible Output Levels. Can Be
      Used for Fault Detection, Low-Input Line
      Detection, and so on.
  • 2.3-V to 30-V Input Voltage Range
  • Output Voltage Adjusts from 1.23 V to 29 V
  • 250-mA Output Current
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Extremely Tight Line and Load Regulation
  • Very Low Temperature Coefficient
  • Current and Thermal Limiting
  • Reverse Battery-Input Protection
  • 50-mA (Typical) Automatic Output Discharge
  • LP2953 Versions Only
    • Auxiliary Comparator Included With CMOS-
      and TTL-Compatible Output Levels. Can Be
      Used for Fault Detection, Low-Input Line
      Detection, and so on.

The LP2952 and LP2953 are micropower voltage regulators with very low quiescent current (130 µA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light load and 470 mV at 250-mA load current). They are ideally suited for battery-powered systems. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life.

The LP2952 and LP2953 retain all the desirable characteristics of the LP2951, but offer increased output current, additional features, and an improved shutdown function.

The automatic output discharge pulls the output down quickly when the shutdown is activated.

The error flag goes low if the output voltage drops out of regulation.

Reverse battery-input protection is provided.

The internal voltage reference is made available for external use, providing a low temperature coefficient (20 ppm/°C) reference with very good line (0.03%) and load (0.04%) regulation.

The LP2952 and LP2953 are micropower voltage regulators with very low quiescent current (130 µA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light load and 470 mV at 250-mA load current). They are ideally suited for battery-powered systems. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life.

The LP2952 and LP2953 retain all the desirable characteristics of the LP2951, but offer increased output current, additional features, and an improved shutdown function.

The automatic output discharge pulls the output down quickly when the shutdown is activated.

The error flag goes low if the output voltage drops out of regulation.

Reverse battery-input protection is provided.

The internal voltage reference is made available for external use, providing a low temperature coefficient (20 ppm/°C) reference with very good line (0.03%) and load (0.04%) regulation.

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类型 标题 下载最新的英语版本 日期
* 数据表 LP295x Adjustable Micropower Low-Dropout Voltage Regulators 数据表 (Rev. F) PDF | HTML 2015年 3月 11日
应用手册 AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) 2013年 4月 23日
更多文献资料 Die D/S LP2953 MDS MCD1420A Adj Micropower Low-Dropout Voltage Regulator 2012年 12月 20日
更多文献资料 Die D/S LP2953 MDS MCD2480A Adjustable Micropower Low-Dropout Volt Regs 2012年 12月 20日
应用手册 Linear and Switching Voltage Regulator Fundamental Part 1 2007年 3月 21日

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SOIC (D) 16 查看选项

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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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