LM2585T-3.3

$4.22

Description：IC REG BST FLYBACK 3.3V TO220-5
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube

SKU:6d19b6853b68 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2585T-3.3 is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BST FLYBACK 3.3V TO220-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2585T-3.3

Description：IC REG BST FLYBACK 3.3V TO220-5
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive
Topology：Boost, Flyback, Forward Converter
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：3A (Switch)
Frequency - Switching：100kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-220-5 Formed Leads
Supplier Device Package：TO-220-5
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2585T-3.3

LM2585T-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2585T-3.3 is a SIMPLE SWITCHER step-up/flyback regulator from Texas Instruments, delivering up to 3 A output current with a fixed 3.3 V output voltage. It operates within an input voltage range of 4 V to 40 V and supports switching frequencies up to 150 kHz. The device integrates a 1-A internal power switch and features thermal shutdown protection. Designed for surface-mount applications, it utilizes the TO-263 (D2PAK) package and functions reliably across an operating temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates a high-current 1-A internal power switch for efficient step-up and flyback conversion topologies.
Includes built-in thermal shutdown circuitry to protect the device during overload or excessive heat conditions.
Supports adjustable switching frequencies up to 150 kHz to optimize external component size and system response.

Voltage Regulators - DC DC Switching Regulators Applications

Battery-powered systems requiring step-up voltage regulation
Industrial control circuits utilizing flyback topology
General-purpose DC-DC conversion in automotive environments

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout compatibility and functional equivalence. Confirm that the intended application aligns with the specified input voltage limits and thermal requirements. Ensure that the selected packaging variant matches the target PCB footprint and mounting style constraints.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from a wide input voltage range up to 40 V. Consider the TO-263 package for adequate thermal dissipation at higher load currents. Evaluate the need for external frequency adjustment if precise timing synchronization is necessary for the system design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2585 SIMPLE SWITCHER family, which provides integrated solutions for step-up and flyback applications. The series is characterized by high efficiency and minimal external component count, making it suitable for compact power supply designs in industrial and consumer electronics.