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LP38855 Datasheet 1.5a Fast-response High-accuracy Ldo Linear Regulator

Manufacturer: Texas Instruments

Overview: LP38855 www.ti.com SNVS461D – OCTOBER 2006 – REVISED APRIL 2013 1.

General Description

The LP38855 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.

Key Features

  • 1.
  • 2 Standard VOUT Values of 0.8V and 1.2V.
  • Wide VBIAS Supply Operating Range of 3.0V to 5.5V.
  • Stable with 10 µF Ceramic Capacitors.
  • Dropout Voltage of 130 mV (Typical) at 1.5A Load Current.
  • Precision Output Voltage Across All Line and Load Conditions:.
  • ±1.0% for TJ = 25°C.
  • ±2.0% for 0°C ≤ TJ ≤ +125°C.
  • ±3.0% for -40°C ≤ TJ ≤ +125°C.
  • Over-Temperature and Over-Current Protection.
  • Available in 5 Lead TO-220 and.

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