LTC3407

RECOMMENDED FOR NEW DESIGNS

Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Regulator

Data Sheet Product Selection Table
Part Models
4
1ku List Price
Starting From $3.45
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Part Details

  • High Efficiency: Up to 96%
  • Very Low Quiescent Current: Only 40µA
  • 1.5MHz Constant Frequency Operation
  • High Switch Current: 1A on Each Channel
  • No Schottky Diodes Required
  • Low RDS(ON) Internal Switches: 0.35Ω
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Short-Circuit Protected
  • Low Dropout Operation: 100% Duty Cycle
  • Ultralow Shutdown Current: IQ < 1µA
  • Output Voltages from 5V down to 0.6V
  • Power-On Reset Output
  • Externally Sychronizable Oscillator
  • Small Thermally Enhanced MSOP Package and 3mm x 3mm DFN Packages
LTC3407
Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Regulator
Figure 1. 2.5V/1.8V at 600mA Step-Down Regulators LTC3407 Effi ciency Curve Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Design Note 2

Technical Articles 2

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
LTC3407A
PRODUCTION Dual Synchronous 600mA, 1.5MHz Step-Down DC/DC Regulator
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LTC3407
  • LTC3407-2
  • LTC3407-3
  • LTC3407-4
  • LTC3407A
  • LTC3407A-2

LTpowerCAD 1

Design tools for the following parts are available in LTpowerCAD:

  • LTC3407
  • LTC3407-2
  • LTC3407-3
  • LTC3407-4
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.

Evaluation Kits

eval board
schematic 1
DC701A

LTC3407EDD Demo Board | (DFN) VIN = 2.5V to 5.5V, VOUT1 = 1.2V / 1.5V/1.8V @ 600mA, VOUT2 = 2.5V @ 600mA

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Product Details

Demonstration circuit 701 is a Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Regulator featuring the LTC3407 in the 3x3 DFN-10 package. The DC701 has an input voltage range of 2.5V to 5.5V, and either output is capable of delivering up to 600mA of output current. In Burst Mode® operation, the LTC3407 requires only 40uA of quiescent current; in Pulse Skip mode, the LTC3407 provides lower output ripple voltage at light load currents. The DC701 can provide up to 96% efficiency on either channel and consumes less than 1uA in shutdown.

eval board
schematic 2
DC568A

LTC3407EMSE Demo Board | (MSOP) VIN = 2.5V to 5.5V, VOUT1 = 1.2V/1.5V/1.8V @ 600mA, VOUT2 = 2.5V @ 600mA

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Product Details

Demonstration circuit 568 is a Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Regulator featuring the LTC3407 in the MSOP-10 exposed pad package. The DC568 has an input voltage range of 2.5V to 5.5V, and either output is capable of delivering up to 600mA of output current. In Burst Mode® operation, the LTC3407 requires only 40uA of quiescent current; in Pulse Skip mode, the LTC3407 provides lower output ripple voltage at light load currents. The DC568 can provide up to 96% efficiency on either channel and consumes less than 1uA in shutdown.
DC701A
LTC3407EDD Demo Board | (DFN) VIN = 2.5V to 5.5V, VOUT1 = 1.2V / 1.5V/1.8V @ 600mA, VOUT2 = 2.5V @ 600mA
DC701A - Schematic
DC568A
LTC3407EMSE Demo Board | (MSOP) VIN = 2.5V to 5.5V, VOUT1 = 1.2V/1.5V/1.8V @ 600mA, VOUT2 = 2.5V @ 600mA
DC568A - Schematic

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