LTC3546

PRODUCTION

Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator

Part Models
8
1ku List Price
Starting From $4.48
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Part Details

  • VIN Range: 2.25V to 5.5V
  • VOUT Range: 0.6V to 5V
  • Programmable Frequency Operation; 2.25MHz, or Adjustable Between 0.75MHz to 4MHz
  • Low RDS(ON) Internal Switches
  • High Efficiency: Up to 96%
  • No Schottky Diodes Required
  • Short-Circuit Protected
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Low Ripple Burst Mode Operation (30mVP-P), IQ = 160μA
  • Ultralow Shutdown Current: IQ < 1μA
  • Low Dropout Operation: 100% Duty Cycle
  • Power Good Output For Each Channel
  • Externally or Internally Programmable Burst Level
  • External or Internal Soft-Start or Supply Tracking
  • Available in Thermally Enhanced 28-Lead (4mm × 5mm) QFN and TSSOP Packages
LTC3546
Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator
VOUT2 Efficiency (Burst Mode Operation) Product Package 1 Product Package 2
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Documentation

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
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LTC2974 RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
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LTC6909 PRODUCTION 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4365 RECOMMENDED FOR NEW DESIGNS Overvoltage, Undervoltage and Reverse Supply Protection Controller
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Tools & Simulations

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
DC1087A

LTC3546UFD Demo Board | Dual Synchronous 3A/1A or 2A/2A, Configurable Step Down DC/DC Regulator

Product Details

DC1087A: Demo Board for LTC3546 Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator.

eval board
DC1086A

LTC3546UFD Demo Board | Dual Synchronous 2+1A or 2A 1+1A, 4MHz Step Down DC/DC Regulator

Product Details

DC1086A: Demo Board for LTC3546 Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator.

DC1087A
LTC3546UFD Demo Board | Dual Synchronous 3A/1A or 2A/2A, Configurable Step Down DC/DC Regulator
DC1087A - Schematic
DC1086A
LTC3546UFD Demo Board | Dual Synchronous 2+1A or 2A 1+1A, 4MHz Step Down DC/DC Regulator
DC1086A - Schematic

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