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Product details

Parameters

Output options Fixed Output Iout (Max) (A) 1.5 Vin (Max) (V) 5.5 Vin (Min) (V) 1.34 Vout (Max) (V) 1.8 Vout (Min) (V) 1.2 Fixed output options (V) 1.2, 1.5, 1.8 Noise (uVrms) 150 Iq (Typ) (mA) 4 Thermal resistance θJA (°C/W) 40 Approx. price (US$) 1.40 | 1ku Load capacitance (Min) (µF) 10 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR @ 100 KHz (dB) 30 Dropout voltage (Vdo) (Typ) (mV) 140 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

HSOIC (DDA) 8 19 mm² 4.9 x 3.9 TO-263 (KTT) 5 155 mm² 10.16 x 15.24 open-in-new Find other Linear regulators (LDO)

Features

  • Ultra Low Dropout Voltage (140 mV at 1.5A typ)
  • Low Ground Pin Current
  • Load Regulation of 0.04%/A
  • 60 nA Typical Quiescent Current in Shutdown
  • 1.5% Output Accuracy (25°C)
  • TO-220, DDPAK/TO-263 and SO PowerPAD-8 Packages
  • Over Temperature/Over Current Protection
  • −40°C to +125°C Junction Temperature Range

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Description

The LP3892 is a high current, fast response regulator which can maintain output voltage regulation with minimum 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 these devices makes them suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The parts are available in TO-220, DDPAK/TO-263 and SO PowerPAD-8 packages.

Dropout Voltage:140mV (typ) at 1.5A load current.

Ground Pin Current: 3 mA (typ) at full load.

Shutdown Current: 60 nA (typ) when S/D pin is low.

Precision Output Voltage: 1.5% room temperature accuracy.

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Technical documentation

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No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet LP3892 1.5A Fast-Response Ultra Low Dropout Linear Regulators datasheet (Rev. D) Apr. 02, 2013
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Reference designs

REFERENCE DESIGNS Download
Xilinx Zynq 7000 Series (XC7Z045) 20W Reference Design
PMP10613 The PMP10613 reference design provides all the power supply rails necessary to power Xilinx® Zynq® 7000 series (XC7Z045)  FPGA.   This design uses several LMZ3 series modules, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA.  It (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTT) 5 View options
SO PowerPAD (DDA) 8 View options

Ordering & quality

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