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LP38842-ADJ

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具有使能功能的 1.5A、低输入电压 (0.675V)、可调节超低压降稳压器

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LP38842-ADJ

正在供货
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产品详情

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.675 Vout (max) (V) 1.5 Vout (min) (V) 0.56 Noise (µVrms) 90 Iq (typ) (mA) 32 Thermal resistance θJA (°C/W) 43 Rating Catalog Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 29 Dropout voltage (Vdo) (typ) (mV) 115 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.675 Vout (max) (V) 1.5 Vout (min) (V) 0.56 Noise (µVrms) 90 Iq (typ) (mA) 32 Thermal resistance θJA (°C/W) 43 Rating Catalog Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR at 100 KHz (dB) 29 Dropout voltage (Vdo) (typ) (mV) 115 Operating temperature range (°C) -40 to 125
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Ideal for Conversion From 1.8V or 1.5V Inputs
  • Designed for Use With Low ESR Ceramic Capacitors
  • Ultra Low Dropout Voltage (115mV at 1.5A typ)
  • 0.56V to 1.5V Adjustable Output Range
  • Load Regulation of 0.1%/A (typ)
  • 30nA Quiescent Current in Shutdown (typ)
  • Low Ground Pin Current at all Loads
  • Over Temperature/Over Current Protection
  • Available in 8 Lead SO PowerPAD Package
  • −40°C to +125°C Junction Temperature Range
  • UVLO Disables Output When VBIAS < 3.8V

All trademarks are the property of their respective owners.

  • Ideal for Conversion From 1.8V or 1.5V Inputs
  • Designed for Use With Low ESR Ceramic Capacitors
  • Ultra Low Dropout Voltage (115mV at 1.5A typ)
  • 0.56V to 1.5V Adjustable Output Range
  • Load Regulation of 0.1%/A (typ)
  • 30nA Quiescent Current in Shutdown (typ)
  • Low Ground Pin Current at all Loads
  • Over Temperature/Over Current Protection
  • Available in 8 Lead SO PowerPAD Package
  • −40°C to +125°C Junction Temperature Range
  • UVLO Disables Output When VBIAS < 3.8V

All trademarks are the property of their respective owners.

The LP38842-ADJ is a high current, fast response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in the SO PowerPAD package.

Dropout Voltage: 115 mV (typ) at 1.5A load current.

Quiescent Current: 30 mA (typ) at full load.

Shutdown Current: 30 nA (typ) when S/D pin is low.

Precision Reference Voltage: 1.5% room temperature accuracy.

The LP38842-ADJ is a high current, fast response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in the SO PowerPAD package.

Dropout Voltage: 115 mV (typ) at 1.5A load current.

Quiescent Current: 30 mA (typ) at full load.

Shutdown Current: 30 nA (typ) when S/D pin is low.

Precision Reference Voltage: 1.5% room temperature accuracy.
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* 数据表 LP38842-ADJ 1.5A Ultra Low Dropout Adj Linear Reg Stable w/Ceramic Out Caps 数据表 (Rev. A) 2013年 4月 2日

设计和开发

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HSOIC (DDA) 8 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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