IC manufacturers Analog Devices

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Analog Devices LTC3312SA

5V, Dual 6A/Dual-Phase 12A Step-Down DC/DC Regulator

Overview

TopologyBuck Converter
Input voltage2.25-5.5 V
Switching frequency1000-3000 kHz
Output 11.2 V / 6 A
Output 21.8 V / 6 A

Description

The LTC®3312SA features dual monolithic synchronous 6A step-down converters in a 4mm × 3mm package for space saving applications with demanding performancerequirements. Using a constant frequency, peak current mode architecture at switching frequencies up to 3MHz, both bucks achieve high efficiency and fast transient response with small external components. The LTC3312SA can also be configured as a single output,2-phase 12A step-down converter.

Features

  • Dual 6A Outputs
  • Configurable as Single Output, 2-Phase 12A Buck
  • High Efficiency: 12mΩ High-Side and 8mΩ Low-Side
  • ±1% Maximum Total DC Output Error
  • Wide Bandwidth, Fast Transient Response
  • Internal Input Capacitors Reduce EMI
  • VIN Range: 2.25V to 5.5V
  • VOUT Range: 0.5V to VIN
  • Programmable Frequency to 3MHz
  • Low Ripple Burst Mode® Operation with Low IQ
  • Shutdown Current: 1.4μA
  • 35ns Minimum On-Time
  • Internal Compensation
  • Precision Enable, Power Good for Power Sequencing
  • Tracking, Programmable Soft-Start, Temp Monitor Output
  • Thermally Enhanced, 22-Lead 4mm × 3mm ×0.95mm LQFN package
  • AEC-Q100 Qualified for Automotive

Typical applications

  • Automotive
  • FPGA, ASIC, μP Core Supplies
  • Industrial, Distributed DC Power Systems (POL)
  • Communications, Servers, Telecom Power Supplies, Optical Networking

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