Manufacturer Texas Instruments
Manufacturer Part Number LP38855S-1.2
Description IC REG LDO 1.2V 1.5A TO263-5
Stock Code W002951
Download Technical Datasheet

The LP38855S-1.2 is a 1.8V fixed output fast-response high-accuracy low-dropout (LDO) Linear Regulator with Enable. The device 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.

  • Stable with 10µF ceramic capacitors
  • ±1.0% Precision output voltage across all line and load conditions (TJ = 25°C)
  • Overtemperature and overcurrent protection

Output Capacitor Type

Ceramic

Number of Outputs

1

Mounting Style

Surface Mount

Lifecycle Status

Active

Lead-Free Status

Contains Lead

Case/Package

TO-263

Dropout Voltage

130 mV

Operating Temperature

-40.0 °C to 125 °C

Output Voltage

1.20 V

RoHS

Compliant

REACH SVHC Compliance

No SVHC

Quiescent Current

10.0 mA

Number of Pins

5

Packaging

Rail

Output Current

1.50 A

Number of Regulated Outputs

1