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LP38852-具有启用和软启动的 1.5A 快速响应高分辨率可调节 LDO 线性稳压器
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TI产品 - LP38852介绍

LP38852 - 具有启用和软启动的 1.5A 快速响应高分辨率可调节 LDO 线性稳压器

LP38852是TI德州仪器公司的一款单通道LDO产品，LP38852是具有启用和软启动的 1.5A 快速响应高分辨率可调节 LDO 线性稳压器，本站介绍了LP38852的封装应用图解、特点和优点、功能等，并给出了与LP38852相关的TI元器件型号供参考。

LP38852 - 具有启用和软启动的 1.5A 快速响应高分辨率可调节 LDO 线性稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The LP38852-ADJ is a high current, fast response regulator which can maintain output voltage regulation with extremely low 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 this device makes it suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The part is available in the TO-220 and DDPAK 7-pin packages.

Dropout Voltage: 130 mV (typical) at 1.5A load current.

Low Ground Pin Current: 10 mA (typical) at 1.5A load current.

Soft-Start: Programmable Soft-Start time.

Precision ADJ Voltage: ±1.5% for TJ = 25°C, and ±2.0% for 0°C ≤ TJ ≤ +125°C, across all line and load conditions

产品特性

  • Adjustable VOUT Range of 0.80V to 1.8V
  • Wide VBIAS Supply Operating Range of 3.0V to 5.5V
  • Stable with 10µF Ceramic Capacitors
  • Dropout Voltage of 130 mV (Typical) at 1.5A Load Current
  • Precision Output Voltage across All Line and Load Conditions:
    • ±1.5% VADJ for TJ = 25°C
    • ±2.0% VADJ for 0°C ≤ TJ ≤ +125°C
    • ±3.0% VADJ for -40°C ≤ TJ ≤ +125°C
  • Over-Temperature and Over-Current Protection
  • Available in 8 Lead SO PowerPAD, 7 Lead TO-220 and 7 Lead DDPAK Packages
  • −40°C to +125°C Operating Junction Temperature Range

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