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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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Overview
The LT3579IFE-1#PBF is a high-performance switching regulator manufactured by Analog Devices Inc., housed in a 20-WFQFN package with an exposed pad. It functions as a boost, inverting, Cuk, flyback, or SEPIC DC/DC converter capable of delivering up to 6A of switch current. The device supports an input voltage range from 2.5V to 16V and provides an adjustable output voltage between 1.215V and 42V. Operating at a programmable switching frequency from 200kHz to 2.5MHz, it offers flexible configuration for various power conversion topologies within a -40°C to 125°C junction temperature range.
Feature Summary
- Supports multiple DC/DC conversion topologies including boost, inverting, Cuk, flyback, and SEPIC configurations.
- Integrates a high-current internal switch rated for 6A operation.
- Features programmable switching frequency ranging from 200kHz to 2.5MHz.
- Provides adjustable output voltage capability across a wide dynamic range.
Applications
- Industrial power supply systems requiring versatile topology support
- Automotive electronics utilizing single-rail battery inputs
- Portable equipment needing efficient step-up or negative voltage generation
Procurement Notes
Verify the complete part number including suffixes such as #PBF for lead-free compliance when ordering. Confirm package type and thermal requirements match your PCB layout specifications. Ensure compatibility with external components like inductors and capacitors for the selected topology. Check manufacturer documentation for latest revisions and application notes related to stability and EMI performance.
Selection Notes
Select this component when designing circuits that require flexibility in topology choice without changing the controller IC. Consider the 6A current rating against peak load demands and thermal dissipation capabilities in the QFN package. Evaluate the input voltage range against source characteristics to ensure proper operation. Assess the need for adjustable output versus fixed voltage alternatives based on system design constraints.
Part Context
This device belongs to the LT3579 family of power management integrated circuits designed for complex power conversion needs. It complements other Analog Devices regulators by offering multi-topology functionality in a compact form factor. The series targets applications where space constraints and design versatility are critical factors in power architecture selection.
Replacement Considerations
LT3579IUFD#PBF serves as a verified alternative variant within the same product family, sharing identical electrical specifications and functional capabilities while differing primarily in package style.
