LTC3412A
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LTC3412A

3A, 4MHz, Monolithic Synchronous Step-Down Regulator

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LTspice LTC3412A Demo Circuit - 3A, 4MHz, Monolithic Synchronous Step-down Regulator (3.3V to 1.8V @ 3A) Download 3.00KB LTspice LTC3412A - Step-Down (Buck) Regulators Download 2.12 KB
Part Models 10
1ku List Price Starting From $4.13
Features
  • High Efficiency: Up to 95%
  • 3A Output Current
  • Low Quiescent Current: 64μA
  • Low RDS(ON) Internal Switch: 77mΩ
  • 2.25V to 5.5V Input Voltage Range
  • Programmable Frequency: 300kHz to 4MHz
  • ±2% Output Voltage Accuracy
  • 0.8V Reference Allows Low Output Voltage
  • Selectable Forced Continuous/Burst Mode® Operation with Adjustable Burst Clamp
  • Synchronizable Switching Frequency
  • Low Dropout Operation: 100% Duty Cycle
  • Power Good Output Voltage Monitor
  • Overtemperature Protected
  • Available in 16-Lead Exposed Pad TSSOP and QFN Packages
Additional Details
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The LTC3412A is a high efficiency monolithic synchronous, step-down DC/DC converter utilizing a constant frequency, current mode architecture. It operates from an input voltage range of 2.25V to 5.5V and provides a regulated output voltage from 0.8V to 5V while delivering up to 3A of output current. The internal synchronous power switch with 77mΩ on-resistance increases efficiency and eliminates the need for an external Schottky diode. Switching frequency is set by an external resistor or can be synchronized to an external clock. 100% duty cycle provides low dropout operation extending battery life in portable systems. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of loads and output capacitors.

The LTC3412A can be configured for either Burst Mode operation or forced continuous operation. Forced continuous operation reduces noise and RF interference while Burst Mode operation provides high efficiency by reducing gate charge losses at light loads. In Burst Mode operation, external control of the burst clamp level allows the output voltage ripple to be adjusted according to the application requirements.

APPLICATIONS

  • Point-of-Load Regulation
  • Notebook Computers
  • Portable Instruments
  • Distributed Power Systems
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file View Data Sheet (Rev.G)
Documentation View All Documentation
LTspice LTC3412A Demo Circuit - 3A, 4MHz, Monolithic Synchronous Step-down Regulator (3.3V to 1.8V @ 3A) Download 3.00KB LTspice LTC3412A - Step-Down (Buck) Regulators Download 2.12 KB
Part Models 10
1ku List Price Starting From $4.13
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LTC3412A

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UPDATED 05/12/2017
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LTC3412A: 3A, 4MHz, Monolithic Synchronous Step-Down Regulator Data Sheet (Rev.G)

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UPDATED 05/20/2010
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LTC3412A: 3A、4MHzモノリシック同期整流式降圧レギュレータ データシート

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UPDATED 09/24/2009
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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
LTC3412AEFE#PBF 16-Lead TSSOP w/ EP external-link
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LTC3412AEFE#TRPBF 16-Lead TSSOP w/ EP external-link
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LTC3412AEUF#PBF 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3412AEUF#TRPBF 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3412AIFE#PBF 16-Lead TSSOP w/ EP external-link
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LTC3412AIFE#TRPBF 16-Lead TSSOP w/ EP external-link
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LTC3412AIUF#PBF 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3412AIUF#TRPBF 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3412AMPFE#PBF 16-Lead TSSOP w/ EP external-link
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LTC3412AMPFE#TRPBF 16-Lead TSSOP w/ EP external-link
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3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

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

LTC3412A - Step-Down (Buck) Regulators Download

2.12 K

spice tool Lt Spice

LTC3412A Demo Circuit - 3A, 4MHz, Monolithic Synchronous Step-down Regulator (3.3V to 1.8V @ 3A) Download

3.00K

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