LT3029
Info : RECOMMENDED FOR NEW DESIGNS
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LT3029

Dual 500mA/500mA Low Dropout, Low Noise, Micropower Linear Regulator

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 14
1ku List Price Starting From $3.45
Features
  • Output Current: 500mA per Channel
  • Low Dropout Voltage: 300mV
  • Low Noise: 20μVRMS (10Hz to 100kHz)
  • Low Quiescent Current: 55μA per Channel
  • Wide Input Voltage Range: 1.8V to 20V (Common or Independent Input Supply)
  • Adjustable Output: 1.215V Reference Voltage
  • Very Low Quiescent Current in Shutdown: <1μA per Channel
  • Stable with 3.3μF Minimum Output Capacitor
  • Stable with Ceramic, Tantalum or Aluminum Electrolytic Capacitors
  • Reverse-Battery and Reverse Output-to-Input Protection
  • Current Limit with Foldback and Thermal Shutdown
  • Tracking/Sequencing Capability: Compatible with LTC292X Power Supply Tracking ICs
  • Thermally Enhanced 16-Lead MSOP and 16-Lead (4mm × 3mm) DFN Packages
Additional Details
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The LT3029 is a dual, micropower, low noise, low dropout linear regulator. The device operates either with a common input supply or independent input supplies for each channel, over an input voltage range of 1.8V to 20V. Each output supplies up to 500mA of output current with a typical dropout voltage of 300mV. Quiescent current is well controlled in dropout. With an external 10nF bypass capacitor, output noise is only 20μVRMS over a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 55μA quiescent current per channel makes it an ideal choice. In shutdown, quiescent current drops to less than 1μA. Shutdown control is independent for each channel, allowing for flexible power management.

The LT3029 optimizes stability and transient response with low ESR ceramic output capacitors, requiring a minimum of only 3.3μF. The regulator does not require the addition of ESR, as is common with other regulators.

Internal circuitry provides reverse-battery protection, reverse-current protection, current limiting with foldback and thermal shutdown. The device is available as an adjustable output voltage device with a 1.215V reference voltage. The LT3029 is offered in the thermally enhanced 16-lead MSOP and 16-lead, low profile (4mm × 3mm × 0.75mm) DFN packages.

Applications

  • General Purpose Linear Regulator
  • Battery-Powered Systems
  • Microprocessor Core/Logic Supplies
  • Post Regulator for Switching Supplies
  • Tracking/Sequencing Power Supplies
Part Models 14
1ku List Price Starting From $3.45

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Feb 4, 2020

- 20_0132

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Feb 4, 2020

- 20_0132

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Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC

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PRODUCTION

LT3029EMSE#TRPBF

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LT3029HMSE#PBF

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LT3029HMSE#TRPBF

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Software and Part Ecosystem

Software and Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC1408A

LT3029EDE Demo Board | Dual Input, Dual Low Dropout, Low Noise, Micropower Linear Regulator, 2.3V ≤ VIN ≤ 20V, VOUT1/VOUT2 = 1.5V/1.8V/2.5V/3.3V/5V/Adjustable @ 500mA

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DC1408A

LT3029EDE Demo Board | Dual Input, Dual Low Dropout, Low Noise, Micropower Linear Regulator, 2.3V ≤ VIN ≤ 20V, VOUT1/VOUT2 = 1.5V/1.8V/2.5V/3.3V/5V/Adjustable @ 500mA

LT3029EDE Demo Board | Dual Input, Dual Low Dropout, Low Noise, Micropower Linear Regulator, 2.3V ≤ VIN ≤ 20V, VOUT1/VOUT2 = 1.5V/1.8V/2.5V/3.3V/5V/Adjustable @ 500mA

Product Detail

Demonstration circuit 1408 is a dual input, 500mA/500mA linear regulator featuring the LT3029. The LT3029 is a dual, micro-power, low noise and low dropout voltage linear regulator. The device operates either with a common input supply or independent input supplies for each channel, over an input range of 1.8V to 20V; the demo board has a minimum input voltage of 2.3V. Each output supplies up to 500mA of output current with a typical dropout voltage of 300mV. The output voltage is jumper-selectable for each channel and can be set to 1.5V, 1.8V, 2.5V, 3.3V, 5V or a user-defined value.


A 10nF bypass capacitor reduces output noise to 20μVRMS (10Hz to 100kHz bandwidth). The low 55μA quiescent current per channel makes it an idea choice for battery-powered systems. Shutdown control is independent for each channel, allowing flexible power management.

 

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 2

DK-DEV-5SGXEA7N Dev Kit

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altera-stratix-v-gx-fpga-development-kit

altera-stratix-v-gx-fpga-development-kit

Circuits from the lab

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Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link
DK-DEV-5AGXB3NES Dev Kit

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altera-arria-v-gx-fpga-development-kit

altera-arria-v-gx-fpga-development-kit

Circuits from the lab

tooltip Info:Circuits from the lab

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link

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