LTC3623

RECOMMENDED FOR NEW DESIGNS

15V, ±5A Rail-to-Rail Synchronous Buck Regulator

Data Sheet Product Selection Table
Part Models
4
1ku List Price
Starting From $4.72
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Part Details

  • Single Resistor Programmable VOUT: 0V to VIN – 0.5V
  • Silent Switcher® Architecture
  • IISET Accuracy: ±1%
  • Tight VOUT Regulation Across VOUT Range
  • Output Current Monitor Accuracy: ±5%
  • Programmable Wire Drop Compensation
  • Easy to Parallel for Higher Current and Heat Spreading
  • Input Supply Voltage Regulation Loop
  • High Efficiency: Up to 96%
  • Output Current: ±5A
  • Integrated N-MOSFETs (60mΩ Top & 30mΩ Bottom)
  • Adjustable Switching Frequency: 400KHz to 4MHz
  • VIN Range: 4V to 15V
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Shutdown Mode Draws Less Than 1µA Supply Current
  • Low Profile 24-Lead 3mm × 5mm QFN Package
LTC3623
15V, ±5A Rail-to-Rail Synchronous Buck Regulator
LTC3623 Typical Application Image 1 LTC3623 Typical Application Image 2 LTC3623 Package Image 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 1

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
LTC3600
RECOMMENDED FOR NEW DESIGNS 15V, 1.5A Synchronous Rail-to-Rail Single Resistor Step-Down Regulator
LTC3649
RECOMMENDED FOR NEW DESIGNS 60V, 4A Synchronous Step-Down Regulator with Rail-to-Rail Programmable Output
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC3623
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
schematic 1
DC2131A

LTC3623 Demo Board | Silent Switcher Sync Buck, 4V ≤ VIN ≤ 15V, VOUT = 1V/1.5V/2.5V/3.3V/5V @ ±5A

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Product Details

Demonstration circuit 2131A is a current mode DC/DC step-down Silent Switcher® buck regulator featuring the LTC3623. The board operates from an input range of 4V to 15V, and provides ±5A of output current. The output voltage of the demonstration board can be set from 0V to VIN – 0.5V. It operates at 1MHz and may be synchronized to an external clock. A soft-start feature controls output voltage slew rate at start-up, reducing current surge and voltage overshoot. A power good output and current monitor signal are provided. Discontinuous conduction mode can be selected with a jumper. The demonstration board has options for cable drop compensation, negative output voltage and input voltage regulation.
DC2131A
LTC3623 Demo Board | Silent Switcher Sync Buck, 4V ≤ VIN ≤ 15V, VOUT = 1V/1.5V/2.5V/3.3V/5V @ ±5A
DC2131A - Schematic

Latest Discussions

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RE: Schematic feed back on LTC3623
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Difference between LTC3623EUDD and LTC3623IUDD
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