LTC3610

PRODUCTION

24V, 12A Monolithic Synchronous Step-Down DC/DC Converter

Data Sheet Product Selection Table
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Overview

  • 12A Output Current
  • Wide VIN Range = 4V to 24V
  • Internal N-Channel MOSFETs
  • True Current Mode Control
  • Optimized for High Step-Down Ratios
  • tON(MIN) ≤100ns
  • Extremely Fast Transient Response
  • Stable with Ceramic COUT
  • ±1% 0.6V Voltage Reference
  • Power Good Output Voltage Monitor
  • Adjustable On-Time/Switching Frequency
  • Adjustable Current Limit
  • Programmable Soft-Start
  • Output Overvoltage Protection
  • Optional Short-Circuit Shutdown Timer
  • Low Shutdown IQ: 15μA
  • Available in a 9mm × 9mm 64-Pin QFN Package

The LTC3610 is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 12A output current from a 4V to 24V (28V maximum) input supply. It uses a valley current control architecture to deliver very low duty cycle operation at high frequency with excellent transient response. The operating frequency is selected by an external resistor and is compensated for variations in VIN and VOUT.

The LTC3610 can be configured for discontinuous or forced continuous operation at light load. Forced continuous operation reduces noise and RF interference while discontinuous mode provides high efficiency by reducing switching losses at light loads.

Fault protection is provided by internal foldback current limiting, an output overvoltage comparator and an optional short-circuit shutdown timer. Soft-start capability for supply sequencing is accomplished using an external timing capacitor. The regulator current limit is user programmable. A power good output voltage monitor indicates when the output is in regulation. The LTC3610 is available in a compact 9mm × 9mm QFN package.

Applications

  • Point of Load Regulation
  • Distributed Power Systems
LTC3610
24V, 12A Monolithic Synchronous Step-Down DC/DC Converter
High Efficiency Step-Down Converter Efficiency vs Load Current Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 1

Technical Articles 3

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Circuit Monitors 1
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Protection Switches & Controllers 1
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Switching Regulators & Controllers 1
LTC7130
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC3610
LTspice

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.

Evaluation Kits

eval board
schematic 1
DC1129A

LTC3610EUP Demo Board | Monolithic, 4.5V ≤ VIN ≤ 24V, VOUT = 1.2V/1.5V/1.8V/2.5V @ 12A

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Product Details

Demonstration circuit DC1129A is a synchronous step down converter featuring the LTC3610, the high efficiency, high density DC/DC regulator. The input voltage range is from 4.5V to 24V. The output voltage is jumper-selectable and provides 1.2V, 1.5V, 1.8V or 2.5V at 12A load current. The regulator includes the controller and power MOSFETs in the 9mm by 9 mm QFN package.
DC1129A
LTC3610EUP Demo Board | Monolithic, 4.5V ≤ VIN ≤ 24V, VOUT = 1.2V/1.5V/1.8V/2.5V @ 12A
DC1129A - Schematic

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