LTC3412
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LTC3412

2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator

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LTspice LTC3412 - Step-Down (Buck) Regulators Download 2.33 KB
Part Models 6
1ku List Price Starting From $5.19
Features
  • High Efficiency: Up to 95%
  • 2.5A Output Current
  • Low Quiescent Current: 62µA
  • Low RDS(ON) Internal Switches: 85mΩ
  • Programmable Frequency: 300kHz to 4MHz
  • No Schottky Diode Required
  • ±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 Protection
  • Available in 16-Lead Thermally Enhanced TSSOP and QFN Packages
Additional Details
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The LTC3412 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 2.625V to 5.5V and provides an adjustable regulated output voltage from 0.8V to 5V while delivering up to 2.5A of output current. The internal synchronous power switch with 85mΩ on-resistance increases efficiency and eliminates the need for an external Schottky diode. Switching frequency is set by an external resistor or can be sychronized 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 LTC3412 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 requirements of the application. To further maximize battery life, the P-channel MOSFET is turned on continuously in dropout (100% duty cycle).

Applications

  • Portable Instruments
  • Battery Powered Equipment
  • Notebook Computers
  • Distributed Power Systems
  • Cellular Telephones
  • Digital Cameras
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LTspice LTC3412 - Step-Down (Buck) Regulators Download 2.33 KB
Part Models 6
1ku List Price Starting From $5.19
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LTC3412

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Data Sheet

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UPDATED 05/24/2017
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LTC3412: 2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator Data Sheet

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UPDATED 08/09/2004
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LTC3412: 2.5A、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 03/26/2014
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DN304 - 4MHz Monolithic Synchronous Step-Down Regulators Bring High Efficiency to Space-Sensitive Applications redirect icon

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UPDATED 08/09/2004
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DN304 4MHz Monolithic Synchronous Step-Down Regulators Bring High Efficiency to Space-Sensitive Applications redirect icon

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UPDATED 02/25/2008
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DN304 省スペースで高効率な4MHzモノリシック同期式降圧レギュレータ redirect icon

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User Guide

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UPDATED 09/24/2009
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DC456A - Demo Manual redirect icon

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Reliability Data

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R457 Reliability Data redirect icon

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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
LTC3412EFE#PBF 16-Lead TSSOP w/ EP external-link
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LTC3412EFE#TRPBF 16-Lead TSSOP w/ EP external-link
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LTC3412EUF#PBF 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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  • Reliablity Data external-link
LTC3412EUF#TRPBF 16-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3412IFE#PBF 16-Lead TSSOP w/ EP external-link
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LTC3412IFE#TRPBF 16-Lead TSSOP w/ EP external-link
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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

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LTC3612
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PRODUCTION

3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

Evaluation Kits 1

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DC456A

LTC3412EFE | 2.5A Monolithic, Sync. Step-Down Regulator, 2.5-5.5VIN, Jumper Selectable 1.8, 2.5, or 3.3VOUT @ 2.5A

Evaluation Kits1

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DC456A

LTC3412EFE | 2.5A Monolithic, Sync. Step-Down Regulator, 2.5-5.5VIN, Jumper Selectable 1.8, 2.5, or 3.3VOUT @ 2.5A

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.

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LTC3412 - Step-Down (Buck) Regulators Download

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