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LP38856 - 产品图解：
LP38856-具有启用的 3A 快速响应高分辨率 LDO 线性稳压器
LP38856-单通道LDO-线性稳压器(LDO)-电源管理
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TI产品 - LP38856介绍

LP38856 - 具有启用的 3A 快速响应高分辨率 LDO 线性稳压器

LP38856是TI德州仪器公司的一款单通道LDO产品，LP38856是具有启用的 3A 快速响应高分辨率 LDO 线性稳压器，本站介绍了LP38856的封装应用图解、特点和优点、功能等，并给出了与LP38856相关的TI元器件型号供参考。

LP38856 - 具有启用的 3A 快速响应高分辨率 LDO 线性稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品特性
  • Input Voltage: 1.1 V to 5.5 V
  • Wide VBIAS Supply Operating Range: 3 V to 5.5 V
  • Standard VOUT: 0.8 V and 1.2 V
  • Stable with 10-µF Ceramic Capacitors
  • Dropout Voltage of 240 mV (Typical) at 3-A Load Current
  • Precision Output Voltage Across All Line and Load Conditions:
    • ±1% for TJ = 25°C
    • ±2% for 0°C ≤ TJ ≤ +125°C
    • ±3% for –40°C ≤ TJ ≤ +125°C
  • Overtemperature and Overcurrent Protection
  • –40°C to +125°C Operating Temperature Range
产品应用
  • ASIC Power Supplies In:
    • Desktops, Notebooks, and Graphics Cards, 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 LP38856 is a high-current, fast-response regulator which can maintain output voltage regulation with an extremely low input-to-output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: VBIAS provides power for the internal bias and control circuits, as well as drive for the gate of the N-MOS power transistor, while VIN 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 LP38856 is available in 5-pin TO-220 and DDPAK/TO-263 packages.

  • Dropout Voltage: 240 mV (typical) at 3-A load current.
  • Low Ground Pin Current: 10 mA (typical) at 3-A load current.
  • Shutdown Current: 1 µA (typical) IIN(GND) when EN pin is low.
  • Precision Output Voltage: ±1% for TJ = 25°C and ±2% for 0°C ≤ TJ ≤ +125°C, across all line and load conditions.
产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LP38856DDPAK/TO-263 (5)10.16 mm × 8.42 mm
TO-220 (5)14.986 mm × 10.16 mm
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