LT3581HDE#TRPBF

$8.72

Description：IC REG BST CHARGE PUMP ADJ 14DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:299aad31047c Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BST CHARGE PUMP ADJ 14DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
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)：22V
Voltage - Output (Min/Fixed)：1.215V
Voltage - Output (Max)：42V (Switch)
Current - Output：3.3A (Switch)
Frequency - Switching：200kHz ~ 2.5MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：14-WFDFN Exposed Pad
Supplier Device Package：14-DFN (4x3)
Grade：-
Qualification：-

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LT3581HDE#TRPBF

Overview

The LT3581HDE#TRPBF is a high-current boost and inverting DC/DC converter manufactured by Analog Devices Inc. It integrates a 3.3A power switch to support efficient voltage conversion from input voltages ranging from 2.7V to 15V. The device operates at a fixed switching frequency of 500kHz, enabling the use of small external components. Key electrical parameters include an output current capability of 3.3A, a shutdown supply current of less than 1µA, and operation within a temperature range of -40°C to +125°C. It is housed in a compact 10-lead DFN package.

Feature Summary

Integrates a high-current 3.3A power switch for robust performance
Includes comprehensive fault protection mechanisms
Supports both boost and inverting topologies
Features low shutdown current for battery-powered applications

Applications

Portable instrumentation systems
Industrial control modules
Battery-operated equipment requiring voltage inversion or boosting

Procurement Notes

Verify the specific suffix HDE corresponds to the required 10-lead DFN package and commercial/industrial temperature grade. Confirm that the TRPBF designation indicates tape-and-reel packaging suitable for automated assembly processes. Ensure compatibility with the intended PCB footprint and thermal requirements before finalizing procurement orders.

Selection Notes

Select this component when a single-inductor solution is needed for generating both positive and negative rails or stepping up voltage from a single cell source. The integrated 3.3A switch eliminates the need for external pass transistors. Consider the 500kHz frequency as a balance between component size and efficiency. Verify input voltage ranges align with the source supply characteristics.

Part Context

This part belongs to the LT3581 family of monolithic switching regulators designed for space-constrained applications. It simplifies design by combining the controller, driver, and power switch into a single IC. The family is characterized by its ability to drive large currents without external heat sinking in many standard configurations.