LTC3561

PRODUCTION

1A, 4MHz, Synchronous Step-Down DC/DC Converter

Part Details

  • Uses Tiny Capacitors and Inductor
  • High Frequency Operation: Up to 4MHz
  • High Switch Current: 1.4A
  • Low RDS(ON) Internal Switches: 0.110Ω
  • High Efficiency: Up to 95%
  • VIN: 2.63V to 5.5V
  • Stable with Ceramic Capacitors
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Short-Circuit Protected
  • Low Dropout Operation: 100% Duty Cycle
  • Low Shutdown Current: IQ ≤ 1µA
  • Low Quiescent Current: 240µA
  • Output Voltages from 0.8V to 5V
  • Low Noise Pulse-Skipping Operation
  • Small 8-Pin DFN Package
LTC3561
1A, 4MHz, Synchronous Step-Down DC/DC Converter
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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
Digital Power System Managers 1
LTC2974 RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Dual-Supply Monitors 1
LTC2960 RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Multiple Output Buck Regulators 1
LTC3880 RECOMMENDED FOR NEW DESIGNS Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
Single-Supply Monitors 1
LTC2935 PRODUCTION Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds
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Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • LTC3561
  • LTC3561A

LTpowerCAD 1


Design tools for the following parts are available in LTpowerCAD:

  • LTC3561
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.

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

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