LM2598SX-3.3

$3.85

Description：IC REG BUCK 3.3V 1A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:2c14a652d062 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2598SX-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 BUCK 3.3V 1A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2598SX-3.3

Description：IC REG BUCK 3.3V 1A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4.5V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：1A
Frequency - Switching：150kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
Supplier Device Package：TO-263 (DDPAK-7)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2598SX-3.3

LM2598SX-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2598SX-3.3 is a SIMPLE SWITCHER fixed step-down switching regulator from Texas Instruments, designed for high-efficiency power conversion. It operates with an input voltage range of 4.5 V to 40 V and provides a fixed 3.3 V output at up to 1 A. The device utilizes a TO-263 (D2PAK) surface-mount package and supports a switching frequency of approximately 150 kHz. It functions within a junction temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated monolithic controller for simplified buck converter design
Fixed internal feedback network for standard voltage outputs
Built-in thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load regulation for distributed power systems
Pre-regulator stages for downstream linear regulators
Efficient battery-powered equipment power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'SX' indicates tape-and-reel packaging when ordering. Confirm the '-3.3' designation matches the required 3.3 V fixed output voltage. Ensure the TO-263 footprint aligns with the PCB layout requirements. Check for RoHS compliance markers if environmental standards are mandatory.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a fixed 3.3 V output from higher input voltages up to 40 V. It is suitable where moderate efficiency and low external component count are prioritized over ultra-low quiescent current. Consider thermal management due to the single-ended topology and 1 A continuous current capability.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2598 family of SIMPLE SWITCHER regulators. It shares architectural similarities with other members like the LM2598SX-5.0 but differs in its fixed output voltage setting. The series is known for reducing design complexity by integrating the switch and control circuitry into a single package.