See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

NDZ | 7

Temp:

Q (-40 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)

LP38851T-ADJ/NOPB


800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start

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Texas Instruments LP38851T-ADJ/NOPB

The LP38851-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 PSOP 8–pin, SFM 7–pin, and TO-263 7-pin packages.

  • Dropout Voltage: 115 mV (typical) at 800 mA load current
  • Low Ground Pin Current: 10 mA (typical) at 800 mA 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
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