LT3579IFE

Description：IC REG BST CHRG PUMP ADJ 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:fc0e6bf78511 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BST CHRG PUMP ADJ 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive or Negative
Topology：Boost, Charge Pump, Cuk, Flyback, SEPIC
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：2.5V
Voltage - Input (Max)：16V
Voltage - Output (Min/Fixed)：1.215V
Voltage - Output (Max)：42V (Switch)
Current - Output：6A (Switch)
Frequency - Switching：200kHz ~ 2.5MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：20-TSSOP-EP
Grade：-
Qualification：-

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LT3579IFE

Overview

The LT3579IFE is a high-efficiency, synchronous boost and inverting DC/DC converter controller manufactured by Analog Devices Inc. It integrates a 6A switch to deliver up to 6A of output current from input voltages ranging from 2.7V to 40V. The device features an internal oscillator with frequencies selectable between 100kHz and 500kHz. It includes comprehensive protection mechanisms such as cycle-by-cycle current limiting, thermal shutdown, and soft-start functionality. The component is housed in a thermally enhanced 28-lead SSOP package.

Feature Summary

Integrates a high-current 6A power switch for efficient step-up and inversion topologies
Provides flexible switching frequency selection via external resistor programming
Includes built-in thermal shutdown and cycle-by-cycle current limit protection

Applications

Industrial control systems requiring isolated or inverted power rails
Battery-powered equipment needing voltage boosting from low cell voltages
Automotive electronics operating within wide input voltage ranges

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and electrical characteristics. Ensure the package type matches the design requirements. Confirm RoHS compliance status through the manufacturer's datasheet. Validate that the ordering code corresponds exactly to the required variant.

Selection Notes

Select this component when designing boost or inverting converters requiring high output current from a single switch. Consider the thermal performance of the SSOP package for heat dissipation. Evaluate the need for external Schottky diodes if operating in inverting mode. Check compatibility with the desired switching frequency range for EMI constraints.

Part Context

This part belongs to the LT3579 family of synchronous DC/DC controllers. It is designed for applications demanding high efficiency and compact solution size. The family supports both boost and inverting configurations, making it versatile for various power supply architectures in industrial and automotive sectors.