LT3045
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LT3045

20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 21
1ku List Price Starting From $3.37
Features
  • Ultralow RMS Noise: 0.8µVRMS (10Hz to 100kHz)
  • Ultralow Spot Noise: 2nV/√Hz at 10kHz
  • Ultrahigh PSRR: 76dB at 1MHz
  • Output Current: 500mA
  • Wide Input Voltage Range: 1.8V to 20V
  • Single Capacitor Improves Noise and PSRR
  • 100µA SET Pin Current: ±1% Initial Accuracy
  • Single Resistor Programs Output Voltage
  • High Bandwidth: 1MHz
  • Programmable Current Limit
  • Low Dropout Voltage: 260mV
  • Output Voltage Range: 0V to 15V
  • Programmable Power Good
  • Fast Start-Up Capability
  • Precision Enable/UVLO
  • Parallelable for Lower Noise and Higher Current
  • See data sheet for additional features
LT3045-EP Supports Defense and Aerospace Applications (AQEC Standard)
  • Download LT3045-EP Data Sheet (pdf)
  • Military Temperature Range (–55°C to 150°C)
  • Controlled Manufacturing Baseline
  • One Assembly/Test Site
  • One Fabrication Site
  • Product Change Notification
  • Qualification Data Available on Request
  • V62/21614 Data Sheet
Additional Details
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The LT3045 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3045 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB.

The device supplies 500mA at a typical 260mV dropout voltage. Operating quiescent current is nominally 2.2mA and drops to <<1µA in shutdown. The LT3045’s wide output voltage range (0V to 15V) while maintaining unity-gain operation provides virtually constant output noise, PSRR, bandwidth and load regulation, independent of the programmed output voltage. Additionally, the regulator features programmable current limit, fast start-up capability and programmable power good to indicate output voltage regulation.

The LT3045 is stable with a minimum 10µF ceramic output capacitor. Built-in protection includes reverse-battery protection, reverse-current protection, internal current limit with foldback and thermal limit with hysteresis. The LT3045 is available in thermally enhanced 12-Lead MSOP and 10-Lead 3mm × 3mm DFN packages.

The LT3045-EP supports defense and aerospace applications (AQEC)

VIOC Function
LT3045-1 Yes
LT3045 No

APPLICATIONS

  • RF Power Supplies: PLLs, VCOs, Mixers, LNAs, PAs
  • Very Low Noise Instrumentation
  • High Speed/High Precision Data Converters
  • Medical Applications: Imaging, Diagnostics
  • Precision Power Supplies
  • Post-Regulator for Switching Supplies
Part Models 21
1ku List Price Starting From $3.37

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

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Feb 4, 2020

- 20_0129

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

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Jun 21, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

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Nov 29, 2021

- 20_0066

Discontinuation of Sn/Pb Plated Lead Finish Parts for MSOP Package

Filter by Model

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Part Models

Product Lifecycle

PCN

Feb 4, 2020

- 20_0129

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Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LT3045EMSE#PBF

PRODUCTION

LT3045EMSE#TRPBF

PRODUCTION

LT3045HMSE#PBF

PRODUCTION

LT3045HMSE#TRPBF

PRODUCTION

LT3045IMSE#PBF

PRODUCTION

LT3045IMSE#TRPBF

PRODUCTION

Jun 21, 2022

- 22_0050

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UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

LT3045HMSE#WPBF

PRODUCTION

LT3045HMSE#WTRPBF

PRODUCTION

LT3045IMSE#WPBF

PRODUCTION

LT3045IMSE#WTRPBF

PRODUCTION

Nov 29, 2021

- 20_0066

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Discontinuation of Sn/Pb Plated Lead Finish Parts for MSOP Package

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 3

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SCP-LT3045-1-EVALZ

LT3045-1 Signal Chain Evaluation Board | 500mA Ultra Low Noise Positive LDO

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SCP-LT3045-1-EVALZ

LT3045-1 Signal Chain Evaluation Board | 500mA Ultra Low Noise Positive LDO

LT3045-1 Signal Chain Evaluation Board | 500mA Ultra Low Noise Positive LDO

Product Detail

Demonstration circuit SCP-LT3045-1-EVALZ is a 20V, 500mA Low Dropout (LDO) regulator designed best in class low noise operation in noise sensitive circuits. It is easily configured for a wide output range and can provide extremely quiet operation with its high PSRR.

Like all boards in the Signal Chain Power series, this board is designed to be easily plugged into other SCP boards to form a complete signal chain power system, enabling fast evaluation of low power signal chains. To evaluate this board, some universal SCP hardware is required, namely:

  • SCP-INPUT-EVALZ
  • SCP-OUTPUT-EVALZ
  • SCP-1X5BKOUT-EVALZ
  • SCP-THRUBRD-EVALZ
  • SCP-FILTER-EVALZ
  • SCP-1X2BKOUT-EVALZ
  • SCP-5X1-EVALZ

 

To properly evaluate SCP series demo boards, you will need the SCP Configurator companion software. SCP Configurator can help you choose the right board and topology for your design.

Note that the Demo Manual does not cover details important to the operation and configuration regarding the LT3045-1. Please refer to the LT3045-1 data sheet for a complete description of the part.

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DC2491A

LT3045 Demo Board | 20V, 500mA, Ultralow Noise Ultrahigh PSRR RF LDO Regulator

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DC2491A

LT3045 Demo Board | 20V, 500mA, Ultralow Noise Ultrahigh PSRR RF LDO Regulator

LT3045 Demo Board | 20V, 500mA, Ultralow Noise Ultrahigh PSRR RF LDO Regulator

Product Detail

Demo circuit DC2491A features the LT3045EDD, a 500mA, ultralow noise and ultrahigh power supply rejection ratio (PSRR) low dropout (LDO) regulator with programmable current limit. DC2491A operates over an input voltage range of 3.8V to 20V. The LT3045 delivers a maximum output current of 500mA, but at this current level, thermal performance limits the maximum input voltage to 8.3V without a larger copper area or forced-air cooling.


In addition to featuring ultralow noise and ultrahigh PSRR, the regulator offers programmable power good functionality as well as programmable current limit. Current monitoring is also achieved by sensing the ILIM pin voltage. 

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AD-JUPITER-EBZ

Software-Defined Radio

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AD-JUPITER-EBZ

Software-Defined Radio

Software-Defined Radio

Features and Benefits

  • RF/SDR
    • ADRV9002 transceiver
    • 2 x receiver, 2 x transmitter
    • LO frequency range 30 MHz to 6 GHz
    • 12 kHz to 40 MHz frequency bandwidth
    • Sampling rate 12 kSPS to 61.44 MSPS
  • External Device Clock Input
  • External MCS Input
  • RF Front-end
  • Processing System
    • Zynq UltraScale+ MPSoC XCZU3EG
      • ARM Cortex-A53 1.5 GHz
      • ARM Cortex-R5 500 MHz
      • Mali-400 MP2 graphic processor
      • Programmable logic 154 k
    • DDR4 – 2 GB (x32)
    • Boot source
      • SD card 3.0
      • Flash memory 128 MB
    • User Interfaces
      • USB 3.1 Gen 1 – Type C
        • Upstream Facing Port (UFP)
        • Downstream Facing Port (DFP)
        • USB 2.0 compatible
    • Ethernet 1000BASE-T RGMII
    • Display Port v1.2 (2 lanes, 5.4 Gbps)
    • SATA 3
    • USB (micro) debug interface
    • 16 GPIOs (3V3 LVCMOS)
  • Power Sources
    • USB Type-C (power only)
      • Power Sink 5V, 9V/3A
    • USB Type-C (data)
      • Power Sink 5V/3A
      • Power Source 5V/0.9 A
    • 802.3at POE compliant, 25.5 W Type2 (POE+)

Product Detail

The AD-JUPITER-EBZ is a versatile software-defined platform based on Analog Devices ADRV9002 and Xilinx Zynq UltraScale+ MPSoC. The ADRV9002 is a new generation RF transceiver that has dual-channel transmitters, dual-channel receivers covering a frequency range of 30 MHz to 6 GHz. This device has a high-quality RF linearity performance and a set of advanced features like fast profiles switching, flexible power vs. performance configuration, fast frequency hopping, multi-chip synchronization, and digital pre-distortion (DPD) for narrow and wide band waveform.

The evaluation platform includes XCZU3EG processing device that has a wide range of interfaces, making the system capable of local processing or streaming to a remote host. It comes integrated in a self-contained ruggedized aluminum case, which gives flexibility in evaluating and prototyping across different environments.

APPLICATIONS

  • Aerospace and Defense
  • Communications
  • Advanced Education
Tools & Simulations

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.

Reference Designs

Reference Designs 3

Figure 1. CN0568 Block Diagram

Fast switching, High Performance PLL and Quadband VCO Frequency Synthesizer

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CN0568

Fast switching, High Performance PLL and Quadband VCO Frequency Synthesizer

CN0568

Circuits from the lab

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Fast switching, High Performance PLL and Quadband VCO Frequency Synthesizer

Features and Benefits

  • 8GHz - 26GHz Frequency Operation
  • Quadband VCO provides Low Phase Noise over Wideband
  • Onboard Reference Clock for ease of Use
  • Arduino Form Factor Compatible
View Detailed Reference Design external link

Design & Integration Tools

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2.02 M

Videos

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Sep 02, 2022

02:36

Ultra-Fast Switching, High Performance PLL Frequency Synthesizer

Monolithic Power Tree Solution for the ZU7 FPGA

Zynq UltraScale+ MPSoC ZCU104 Paper Reference Design

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ZCU104

Zynq UltraScale+ MPSoC ZCU104 Paper Reference Design

ZCU104

Circuits from the lab

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Zynq UltraScale+ MPSoC ZCU104 Paper Reference Design

Features and Benefits

  • The ZCU104 Evaluation Kit enables designers to jumpstart designs for embedded vision applications such as surveillance, Advanced Driver Assisted Systems (ADAS), machine vision, Augmented Reality (AR), drones and medical imaging.

  • The ADI Power delivery solutions support multiple reference designs using DC/DC module and monolithic solutions. ADI offers several options for powering the Zu7 FPGA.

  • Our module-based solutions combine a small footprint, while maximizing efficiency and tight regulation. Our monolithic based solutions support a lower cost optimized power delivery solution for mass production.

  • ADI provides supporting documentation to enable you to validate the power solution for your application seamlessly.

  • For a complete list power designs and use cases, please contact your local FAE.

  • Please refer to the circuit descriptions below that best support your design.
View Detailed Reference Design external link
Figure 1. CN0585 Simplified Block Diagram

Quad Channel, Low Latency, Data Acquisition and Signal Generation Module

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CN0585

Quad Channel, Low Latency, Data Acquisition and Signal Generation Module

CN0585

Circuits from the lab

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Quad Channel, Low Latency, Data Acquisition and Signal Generation Module

Features and Benefits

  • 4 Analog Input Channels with Configurable Voltage Ranges
  • 4 Analog Output Channels with Configurable Voltage Ranges
  • 200 ns Latency between ADC Measurement and DAC Settling
  • Analog Front End Interface Connector
  • Modeling and Simulation Compatible with MATLAB and Python
  • FMC Connector Interface to FPGA
View Detailed Reference Design external link

Design & Integration Tools

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32.13 M

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