LT3150
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LT3150

Fast Transient Response, Low Input Voltage, Very Low Dropout Linear Regulator Controller

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LTspice LT3150 - LDO Linear Regulators Download 3.14 KB
Part Models 2
1ku List Price Starting From $4.87
Features
  • Fast Transient Response Optimized with Ceramic Output Capacitors
  • FET RDS(ON) Defines Dropout Voltage
  • ±1% Reference Tolerance Over Temperature
  • Multifunction LDO Shutdown Pin with Latchoff
  • Fixed Frequency 1.4MHz Boost Converter Generates MOSFET Gate Drive
  • Internally Compensated Current Mode PWM
  • Boost Converter Uses Tiny Capacitors and Inductor
  • Independent Boost Converter Shutdown Control Permits LDO Output Voltage Supply Sequencing
  • 16-Lead SSOP Package
Additional Details
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The LT3150 drives a low cost external N-channel MOSFET as a source follower to produce a fast transient response, very low dropout voltage linear regulator. Selection of the N-channel MOSFET RDS(ON) allows dropout voltages below 300mV for low VIN to low VOUT applications.

The LT3150 includes a fixed frequency boost regulator that generates gate drive for the N-channel MOSFET. The internally compensated current mode PWM architecture combined with the 1.4MHz switching frequency permits the use of tiny, low cost capacitors and inductors.

The LT3150’s transient load performance is optimized with ceramic output capacitors. A precision 1.21V reference accommodates low voltage supplies.

Protection includes a high side current limit amplifier that activates a fault timer circuit. A multifunction shutdown pin provides either current limit time-out with latchoff, overvoltage protection or thermal shutdown. Independent shutdown control of the boost converter provides on/off and sequencing control of the LDO output voltage.

Applications

  • Microprocessor, ASIC and I/O Supplies
  • Very Low Dropout Input-to-Output Conversion
  • Logic Termination Supplies
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file View Data Sheet
Documentation View All Documentation
LTspice LT3150 - LDO Linear Regulators Download 3.14 KB
Part Models 2
1ku List Price Starting From $4.87
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LT3150

Documentation

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Data Sheet

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UPDATED 08/27/2007
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LT3150: Fast Transient Response, Low Input Voltage, Very Low Dropout Linear Regulator Controller Data Sheet

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User Guide

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UPDATED 09/24/2009
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DC534A - Demo Manual redirect icon

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Reliability Data

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UPDATED 03/22/2018
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R386 Reliability Data redirect icon

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Technical Articles

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UPDATED 11/01/2004
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Power Supply Tracking for Linear Regulators redirect icon

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UPDATED 11/01/2004
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リニア・レギュレータの電源トラッキングを実現する redirect icon

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UPDATED 03/01/2003
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Very Low Dropout (VLDO) Linear Regulator Outperforms Switching Regulators in Low VOUT Applications redirect icon

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Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT3150CGN#PBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LT3150CGN#TRPBF 16-Lead SSOP (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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Product Lifecycle

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Oct 3, 2024

- 24_0235

(QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking

LT3150CGN#PBF

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LT3150CGN#TRPBF

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PCN24_0235_Form

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Delta Qualification Matrix

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Oct 11, 2022

- 22_0235

Epoxy Change from Henkel 8290 to 8290A for GN Package

LT3150CGN#PBF

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LT3150CGN#TRPBF

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PCN22_0235_Form

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Material_Report

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Qualification Results Summary

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Delta Qualification Matrix

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Apr 6, 2022

- 22_0066

Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

LT3150CGN#PBF

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LT3150CGN#TRPBF

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PCN22_0066_Form

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Material_Report

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Delta Qualification Matrix

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Product Lifecycle

PCN

Oct 3, 2024

- 24_0235

arrow down

(QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking

LT3150CGN#PBF

PRODUCTION

LT3150CGN#TRPBF

PRODUCTION

pdf

PCN24_0235_Form

external-icon

xls

Material_Report

Download

pdf

Other

external-icon

xlsm

Delta Qualification Matrix

Download
Oct 11, 2022

- 22_0235

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Epoxy Change from Henkel 8290 to 8290A for GN Package

LT3150CGN#PBF

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LT3150CGN#TRPBF

PRODUCTION

pdf

PCN22_0235_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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xlsm

Delta Qualification Matrix

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Apr 6, 2022

- 22_0066

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Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

LT3150CGN#PBF

PRODUCTION

LT3150CGN#TRPBF

PRODUCTION

pdf

PCN22_0066_Form

external-icon

xls

Material_Report

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xlsm

Delta Qualification Matrix

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Software & Part Ecosystem

Evaluation Kits 1

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DC534A

LT3150CGN Demo Board | Low Voltage LDO Linear Regulator Controller, 1.1V ≤ VIN ≤ 10V, VOUT = 1.2V/1.5/1.8V @ 4A

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DC534A

LT3150CGN Demo Board | Low Voltage LDO Linear Regulator Controller, 1.1V ≤ VIN ≤ 10V, VOUT = 1.2V/1.5/1.8V @ 4A

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DC534A
LT3150CGN Demo Board | Low Voltage LDO Linear Regulator Controller, 1.1V ≤ VIN ≤ 10V, VOUT = 1.2V/1.5/1.8V @ 4A
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Product Detail

Demonstration circuit 534 is a fast transient response, very low dropout linear regulator featuring the 4A output current LT3150 linear regulator controller. The DC534 has an input voltage range of 1.1V to 10V and generates a jumper-selectable output voltage of 1.2V, 1.5V or 1.8V.


With the LT3150 driving external N-channel MOSFETs as source followers, the DC534 can produce very fast transient response. The proper selection of the Rds(on) of the MOSFETs allows dropout voltages below 300 mV. These capabilities, plus its ability to maintain stable operation with ceramic output capacitors, make the DC534 voltage regulator ideally suited for low VIN-to-VOUT applications, such as microprocessor/microcontroller/FPGA power supplies.

Resources

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DC534A - Schematic Download

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DC534A - Demo Manual Download

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DC534A - Design File Download

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Evaluation Kits1

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DC534A

LT3150CGN Demo Board | Low Voltage LDO Linear Regulator Controller, 1.1V ≤ VIN ≤ 10V, VOUT = 1.2V/1.5/1.8V @ 4A

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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LT3150 - LDO Linear Regulators Download

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