LTC3600
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LTC3600

15V, 1.5A Synchronous Rail-to-Rail Single Resistor Step-Down Regulator

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LTspice LTC3600 - Step-Down (Buck) Regulators Download 1.75 KB LTspice LTC3600 Demo Circuit - High Efficiency, 1MHz, 1A Step-Down Converter (4-15V to 2.5V @ 1A) Download 2.00KB
Part Models 8
1ku List Price Starting From $3.37
Features
  • Single Resistor Programmable VOUT
  • ±1% ISET Accuracy
  • Tight VOUT Regulation Independent of VOUT Voltage
  • Easy to Parallel for Higher Current and Heat Spreading
  • Wide VOUT Range 0V to VIN – 0.5V
  • High Efficiency: Up to 96%
  • 1.5A Output Current
  • Adjustable Frequency: 200kHz to 4MHz
  • 4V to 15V VIN Range
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Zero Supply Current in Shutdown
  • Available in Thermally Enhanced 12-Pin (3mm × 3mm) DFN and MSOP Packages
Additional Details
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The LTC3600 is a high efficiency, monolithic synchronous buck regulator whose output is programmed with just one external resistor. The accurate internally generated 50μA current source on the ISET pin allows the use of a single external resistor to program an output voltage that ranges from 0V to 0.5V below VIN. The VOUT voltage feeds directly back to the error amplifier in unity gain fashion and equals the ISET voltage. The operating supply voltage range is 4V to 15V, making it suitable for dual lithium-ion battery and 5V or 12V input point-of-load power supply applications.

The operating frequency is synchronizable to an external clock or programmable from 200kHz to 4MHz with an external resistor. High switching frequency allows the use of small surface mount inductors. The unique constant on-time architecture is ideal for operating at high frequency in high step-down ratio applications that also demand fast load transient response.

Applications

  • Voltage Tracking Supplies
  • Point-of-Load Power Supplies
  • Portable Instruments
  • Distributed Power Systems
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Documentation View All Documentation
LTspice LTC3600 - Step-Down (Buck) Regulators Download 1.75 KB LTspice LTC3600 Demo Circuit - High Efficiency, 1MHz, 1A Step-Down Converter (4-15V to 2.5V @ 1A) Download 2.00KB
Part Models 8
1ku List Price Starting From $3.37
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LTC3600

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UPDATED 05/27/2016
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LTC3600: 15V, 1.5A Synchronous Rail-to-Rail Single Resistor Step-Down Regulator Data Sheet

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UPDATED 09/27/2012
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LTC3600: 1本の抵抗で設定可能な15V、1.5Aレール・トゥ・レール同期整流式降圧レギュレータ データシート

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UPDATED 12/01/2014
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DC1667A - Demo Manual redirect icon

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UPDATED 09/01/2012
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1.5A Rail-to-Rail Output Synchronous Step-Down Regulator Adjusts with a Single Resistor redirect icon

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Documentation

Solutions Bulletin & Brochure 1

Power Management Solutions for NXP Processors

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1

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2017-09-18

Synchronous Step-down Regulator with Programmable Reference

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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
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LTC3600IMSE#PBF 12-Lead MSOP w/ EP external-link
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Jun 5, 2024

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Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

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Feb 4, 2020

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Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

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LTC3623
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RECOMMENDED FOR NEW DESIGNS

15V, ±5A Rail-to-Rail Synchronous Buck Regulator

Evaluation Kits 1

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DC1667A

LTC3600EDD Demo Board | 4.5V to 15V Input, Adjustable Output with 1.5A IOUT

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DC1667A

LTC3600EDD Demo Board | 4.5V to 15V Input, Adjustable Output with 1.5A IOUT

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DC1667A
LTC3600EDD Demo Board | 4.5V to 15V Input, Adjustable Output with 1.5A IOUT
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Product Detail

Demonstration circuit DC1667A is a step-down DC/DC converter using LTC3600 monolithic synchronous buck regulator. DC1667A has an input voltage range of 4.5V to 15V, and is capable of delivering up to 1.5A of output current. The output voltage of the DC1667 can be set by a single resistor from 0V to (VIN – 0.5)V. At light load conditions, DC1667 can operate in discontinuous mode to improve the efficiency.

Resources

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DC1667A - Demo Manual Download

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DC1667A - Schematic Download

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DC1667A - Design Files Download

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Evaluation Kits1

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DC1667A

LTC3600EDD Demo Board | 4.5V to 15V Input, Adjustable Output with 1.5A IOUT

Tools & Simulations 2

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.

spice tool Lt Spice

LTC3600 - Step-Down (Buck) Regulators Download

1.75 K

spice tool Lt Spice

LTC3600 Demo Circuit - High Efficiency, 1MHz, 1A Step-Down Converter (4-15V to 2.5V @ 1A) Download

2.00K

Reference Designs 4

C5G Starter Kit

Terasic C5G Cyclone V GX Starter Kit

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Terasic C5G Cyclone V GX Starter 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

Part Used 5

LTC2308 reference design link

LTC3600 reference design link

LTC3025-1
LTC3025-2
LTC3025-3
LTC3025-4 reference design link

LT3080-1 reference design link

LTC3605 reference design link

SoCKit Dev Kit

Arrow/Terasic SoCKit Development Kit

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Arrow/Terasic SoCKit Development Kit

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Arrow/Terasic SoCKit 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

Part Used 7

LT3080 reference design link

LTC3026 reference design link

LTC3025-1
LTC3025-2
LTC3025-3
LTC3025-4 reference design link

LT3085 reference design link

LTC3614 reference design link

LTC3608 reference design link

LTC3600 reference design link

T1023RDB Dev Kit

NXP (Freescale) QorIQ T1023RDB

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NXP (Freescale) QorIQ T1023RDB

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

Part Used 4

LTC3600 reference design link

LTC3605A reference design link

LT8612 reference design link

LT3021
LT3021-1.2
LT3021-1.5
LT3021-1.8 reference design link

DK-DEV-5CEA7N Dev Kit

Altera Cyclone V E Development Kit

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Altera Cyclone V E Development Kit

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Altera Cyclone V E 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

Part Used 8

LTC3026-1 reference design link

LTC3025-1
LTC3025-2
LTC3025-3
LTC3025-4 reference design link

LTC3103 reference design link

LTC3025 reference design link

LT3009 reference design link

LTC3026 reference design link

LTC3600 reference design link

LTC3608 reference design link

Reference Designs4

C5G Starter Kit

Terasic C5G Cyclone V GX Starter Kit

SoCKit Dev Kit

Arrow/Terasic SoCKit Development Kit

T1023RDB Dev Kit

NXP (Freescale) QorIQ T1023RDB

DK-DEV-5CEA7N Dev Kit

Altera Cyclone V E Development Kit

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