LTC3025-1
LTC3025-2
LTC3025-3
LTC3025-4
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LTC3025-1
LTC3025-2
LTC3025-3
LTC3025-4

500mA Micropower VLDO Linear Regulators

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 20
1ku List Price Starting From $1.68
Features
  • Wide Input Voltage Range: 0.9V to 5.5V
  • Stable with Ceramic Capacitors
  • Very Low Dropout: 85mV at 500mA
  • Adjustable Output Range: 0.4V to 3.6V (LTC3025-1)
  • Fixed Output: 1.2V(LTC3025-2), 1.5V(LTC3025-3), 1.8V(LTC3025-4)
  • ±2% Voltage Accuracy over Temperature, Supply and Load
  • Low Noise: 80μVRMS (10Hz to 100kHz)
  • BIAS Voltage Range: 2.5V to 5.5V
  • Fast Transient Recovery
  • Shutdown Disconnects Load from VIN and VBIAS
  • Low Operating Current: IIN = 4μA, IBIAS = 50μA Typ
  • Low Shutdown Current: IIN = 1μA, IBIAS = 0.01μA Typ
  • Output Current Limit
  • Thermal Overload Protection
  • Available in 6-Lead (2mm × 2mm) DFN Package
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LTC3025-X is a micropower, VLDO (very low dropout) linear regulator which operates from input voltages as low as 0.9V. The device is capable of supplying 500mA of output current with a typical dropout voltage of only 85mV. A BIAS supply is required to run the internal reference and LDO circuitry while output current comes directly from the IN supply for high efficiency regulation. The LTC3025-1 features an adjustable output with a low 0.4V reference while the LTC3025-2, LTC3025-3, and LTC3025-4 have fixed 1.2V, 1.5V and 1.8V output voltages respectively.

The LTC3025-X’s low quiescent current makes it an ideal choice for use in battery-powered systems. For 3-cell NiMH and single cell Li-Ion applications, the BIAS voltage can be supplied directly from the battery while the input can come from a high efficiency buck regulator, providing a high efficiency, low noise output.

Other features include high output voltage accuracy, excellent transient response, stability with ultralow ESR ceramic capacitors as small as 1μF, short-circuit and thermal overload protection and output current limiting. The LTC3025-X is available in a tiny, low profile (0.75mm) 6-lead DFN (2mm × 2mm) package.


Output Current Output Voltage
LTC3025 300mA Adj (0.4V to 3.6V)
LTC3025-1 500mA Adj (0.4V to 3.6V)
LTC3025-2 500mA 1.2V Fixed
LTC3025-3 500mA 1.5V Fixed
LTC3025-4 500mA 1.8V Fixed

APPLICATIONS

  • Low Power Handheld Devices
  • Low Voltage Logic Supplies
  • DSP Power Supplies
  • Cellular Phones
  • Portable Electronic Equipment
  • Handheld Medical Instruments
  • Post Regulator for Switching Supply Noise Rejection
Part Models 20
1ku List Price Starting From $1.68

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1283A

LTC3025EDC-1 Demo Board | Micropower VLDO Linear Regulator, 0.9V ≤ VIN ≤ 5.5V, VOUT = 0.8V/1.2V/1.5V/1.8V/Adjusted @ 500mA

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DC1283A

LTC3025EDC-1 Demo Board | Micropower VLDO Linear Regulator, 0.9V ≤ VIN ≤ 5.5V, VOUT = 0.8V/1.2V/1.5V/1.8V/Adjusted @ 500mA

LTC3025EDC-1 Demo Board | Micropower VLDO Linear Regulator, 0.9V ≤ VIN ≤ 5.5V, VOUT = 0.8V/1.2V/1.5V/1.8V/Adjusted @ 500mA

Product Detail

Demonstration circuit 1283 is an ultralow dropout voltage supply using the LTC3025-1 500mA output current linear regulator in a small 2mm x 2mm 6-Pin DFN package. The DC1283A has an input voltage range from 0.9V to 5.5V and has a jumper-selectable output that can be set to 0.8V, 1.2V, 1.5V, 1.8V or a user defined value between 0.4V and 3.6V.

The 0.4V reference of the LTC3025-1 allows the DC1283A to supply power to very low voltage applications. The DC1283A is also an excellent choice for post regulation of step-down switching regulators, combining to create a high efficiency low-noise supply. The DC1283 uses small ceramic capacitors, showing the LTC3025-1's ability to maintain stability with ceramic output capacitors.
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 14

DK-DEV-5CEA7N Dev Kit

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altera-cyclone-v-e-development-kit

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  • 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
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Arria 10 (Rev E3- Linear Technology) Dev Kit

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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-5CGTD9N Dev Kit

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altera-cyclone-v-gt-fpga-development-kit

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Circuits from the lab

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  • 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
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SoCKit Dev Kit

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Circuits from the lab

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  • 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
Arria 10 SoC - Top View

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altera-arria-10-soc-development-kit

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Circuits from the lab

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  • 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
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C5G Starter Kit

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Circuits from the lab

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  • 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

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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-5SGXEA7N Dev Kit

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

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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-4SGX230N Dev Kit

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altera-stratix-iv-gx-fpga-development-kit

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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
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TR5-F40W Dev Kit

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TR5-Lite Dev Kit

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  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
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DK-VIDEO-4SGX230N Dev Kit

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TR4 Stratix IV Board

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DE4 Dev Kit

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Terasic DE4 Development and Education Board

Terasic DE4 Development and Education Board

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