LM29300T-3.3

$0.68

Description：IC REG LINEAR 3.3V 3A TO220-3L
Series：-
Mfr：TAEJIN
Package：Tube

SKU:e55b58846240 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: TAEJIN

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 3.3V 3A TO220-3L
Series：-
Mfr：TAEJIN
Package：Tube
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：26V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.6V @ 3A
Current - Output：3A
Current - Quiescent (Iq)：35 mA
Current - Supply (Max)：37 mA
PSRR：-
Control Features：-
Protection Features：Load Dump, Over Current, Over Temperature, Reverse Polarity
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220-3L
Grade：-
Qualification：-

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LM29300T-3.3

Overview

The TAEJIN LM29300T-3.3 is a fixed-output positive linear regulator providing a nominal 3.3V output with a maximum continuous current capability of 3.0A. It utilizes a PNP pass element to achieve a typical dropout voltage of 370mV at full load, ensuring high efficiency in low headroom applications. The device guarantees an initial output voltage tolerance of ±1% and features extremely fast transient response characteristics. Integrated protections include reverse-battery protection, load dump protection, over-current limiting, and thermal shutdown.

Feature Summary

High current capability up to 3.0A with very low dropout voltage
Accurate 1% guaranteed initial output voltage tolerance
Integrated reverse-battery and load dump protection
Zero-current shutdown mode for minimal power consumption

Applications

Battery powered equipment
Automotive electronics
High-efficiency post-regulator for switching supplies

Procurement Notes

Verify the specific manufacturer designation on the component marking, as TAEJIN (HTC Korea) produces this part alongside other manufacturers like National Semiconductor. Confirm that the TO-220 package variant matches your thermal requirements and PCB footprint. Ensure input voltage does not exceed the 26V continuous operating limit to prevent damage.

Selection Notes

Select this regulator when high current delivery near the input rail is required without significant voltage drop. The 3.3V fixed version eliminates external resistor networks needed for adjustable variants. Consider the TO-220 package's thermal dissipation capabilities relative to ambient temperature and expected load currents to determine if a heatsink is necessary.

Part Context

This component belongs to the LM29300/29301/29302 family of 3.0A very low dropout linear regulators manufactured by HTC Korea. The '00' suffix indicates a fixed-output configuration without enable or flag pins, distinguishing it from the '01' (enable/flag) and '02' (adjustable) series members within the same product line.