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LP38853 - 产品图解：
LP38853-具有启用和软启动的 3A 快速响应高分辨率可调节 LDO 线性稳压器
LP38853-单通道LDO-线性稳压器(LDO)-电源管理
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TI产品 - LP38853介绍

LP38853 - 具有启用和软启动的 3A 快速响应高分辨率可调节 LDO 线性稳压器

LP38853是TI德州仪器公司的一款单通道LDO产品，LP38853是具有启用和软启动的 3A 快速响应高分辨率可调节 LDO 线性稳压器，本站介绍了LP38853的封装应用图解、特点和优点、功能等，并给出了与LP38853相关的TI元器件型号供参考。

LP38853 - 具有启用和软启动的 3A 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

产品特性
  • Wide VBIAS Supply Operating Range: 3 V to 5.5 V
  • Adjustable VOUT Range: 0.8 V to 1.8 V
  • Dropout Voltage of 240 mV (Typical) at 3-A Load Current
  • Precision VADJ Across All Line and Load Conditions:
    • ±1.5% VADJ for TJ = 25°C
    • ±2% VADJ for 0°C ≤ TJ ≤ +125°C
    • ±3% VADJ for –40°C ≤ TJ ≤ +125°C
  • Overtemperature and Overcurrent Protection
  • Stable with 10-µF Ceramic Capacitors
  • −40°C to +125°C Operating Junction Temperature Range
产品应用
  • ASIC Power Supplies in:
    • Desktops, Notebooks, Graphics Cards, and Servers
    • Gaming Set-Top Boxes, Printers, and Copiers
  • Server Core and I/O Supplies
  • DSP and FPGA Power Supplies
  • SMPS Post-Regulator
产品说明

The LP38853 is a high-current, fast-response regulator that 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 NMOS power transistor; VIN is the input voltage which supplies power to the load. The use of an external bias rail allows the device 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 NMOS 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 and microcontroller core voltages, and switch-mode power-supply post regulators.

  • Dropout Voltage: 240 mV (typical) at 3-A load current.
  • Low Ground Pin Current: 10 mA (typical) at 3-A load current.
  • Soft Start: Programmable soft-start time.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LP38853DDPAK/TO-263 (7)10.10 mm × 8.89 mm
TO-220 (7)14.986 × 10.16 mm
SO PowerPAD™ (8)4.89 mm × 3.90 mm
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