LTC3406B

PRODUCTION

1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT

Data Sheet Product Selection Table
Part Models
6
1ku List Price
Starting From $2.63
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Part Details

  • High Efficiency: Up to 96%
  • 600mA Output Current at VIN = 3V
  • 2.5V to 5.5V Input Voltage Range
  • 1.5MHz Constant Frequency Operation
  • No Schottky Diode Required
  • Low Dropout Operation: 100% Duty Cycle
  • Low Quiescent Current: 300µA
  • 0.6V Reference Allows Low Output Voltages
  • Shutdown Mode Draws <1µA Supply Current
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Overtemperature Protected
  • Low Profile (1mm) ThinSOT™ Package
LTC3406B
1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT
Figure 1a. High Efficiency Step-Down Converter Figure 1b. Efficiency vs Load Current Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 2

Technical Articles 1

Data Sheet

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

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Hardware Ecosystem

Parts Product Life Cycle Description
LTC3406AB
PRODUCTION 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LTC3406
  • LTC3406-1.2
  • LTC3406-1.5
  • LTC3406-1.8
  • LTC3406A
  • LTC3406AB
  • LTC3406B
  • LTC3406B-1.2
  • LTC3406B-1.5
  • LTC3406B-1.8
  • LTC3406B-2

LTpowerCAD 1

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
DC500A-D

LTC3406BES5 Demo Board | 2.7V to 5.5VIN, 1.2VOUT @ 600mA(Max)

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Product Details

Demonstration circuit DC500 is a constant-frequency step-down converter, using the various versions (fixed output/adjustable output/Burst Mode/Burst Mode defeated) of the LTC3406 or LTC3406B monolithic synchronous buck regulators. The DC500 has an input voltage range of 2.7V to 5.5V, and is capable of delivering up to 600 mA of output current at minimum input voltage of 3V. The DC500A-D features the adjustable output, LTC3406B (Burst Mode defeated) with the output voltage set to 1.2V.

eval board
schematic 2
DC500A-E

LTC3406BES5-1.5 Demo Board | 2.7V to 5.5VIN, 1.5VOUT @ 600mA(Max)

Buy Now View Details

Product Details

Demonstration circuit DC500 is a constant-frequency step-down converter, using the various versions (fixed output/adjustable output/Burst Mode/Burst Mode defeated) of the LTC3406 or LTC3406B monolithic synchronous buck regulators. The DC500 has an input voltage range of 2.7V to 5.5V, and is capable of delivering up to 600 mA of output current at minimum input voltage of 3V. The DC500A-E features the 1.5V fixed output LTC3406B-1.5 (Burst Mode defeated).

eval board
schematic 3
DC500A-F

LTC3406BES5-1.8 Demo Board | 2.7V to 5.5VIN, 1.8VOUT @ 600mA(Max)

Buy Now View Details

Product Details

Demonstration circuit DC500 is a constant-frequency step-down converter, using the various versions (fixed output/adjustable output/Burst Mode/Burst Mode defeated) of the LTC3406 or LTC3406B monolithic synchronous buck regulators. The DC500 has an input voltage range of 2.7V to 5.5V, and is capable of delivering up to 600 mA of output current at minimum input voltage of 3V. The DC500A-F features the 1.8V fixed output LTC3406B-1.8 (Burst Mode defeated).
DC500A-D
LTC3406BES5 Demo Board | 2.7V to 5.5VIN, 1.2VOUT @ 600mA(Max)
DC500A-A - Schematic
DC500A-E
LTC3406BES5-1.5 Demo Board | 2.7V to 5.5VIN, 1.5VOUT @ 600mA(Max)
DC500A-A - Schematic
DC500A-F
LTC3406BES5-1.8 Demo Board | 2.7V to 5.5VIN, 1.8VOUT @ 600mA(Max)
DC500A-A - Schematic

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