LM2599S-3.3

$3.00

Description：IC REG BUCK 3.3V 3A TO263
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk

SKU:5017f2180285 Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM2599S-3.3 is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is IC REG BUCK 3.3V 3A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2599S-3.3

Description：IC REG BUCK 3.3V 3A TO263
Series：SIMPLE SWITCHER®
Mfr：National Semiconductor
Package：Bulk
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：3A
Frequency - Switching：150kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C
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 LM2599S-3.3

LM2599S-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2599S-3.3 is a step-down switching regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments following the acquisition of National Semiconductor. It provides a fixed 3.3V output with a maximum load current of 3A. The device operates at a switching frequency of 150kHz and accepts an input voltage range from 4.5V to 40V. Packaged in TO-263 (D2PAK), it integrates a 150mA driver for external components.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates a fixed-frequency oscillator for simplified external component selection
Includes internal frequency compensation for stable operation
Features thermal shutdown protection to safeguard against overheating

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load regulation modules
Pre-regulator circuits for switching regulators
Standard 5V or 12V bus expansion supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the part number suffix indicates the correct package type and temperature rating. Confirm RoHS compliance status as specified in the official datasheet. Ensure the supplier source matches the manufacturer's authorized distribution channels to guarantee component authenticity.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 3.3V output is required without external feedback resistors. Consider the 150kHz switching frequency for balancing filter size and efficiency. Evaluate thermal performance requirements based on the expected load current and ambient operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2599 series of monolithic integrated step-down converters. The series offers fixed output voltages including 3.3V, 5V, 12V, and adjustable versions. It is designed to drive loads up to 3A with excellent line and load regulation capabilities.