LD39150PU33R

$1.03

Description：IC REG LINEAR 3.3V 1.5A 6-DFN
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:8248a053d9cf Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 3.3V 1.5A 6-DFN
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：6V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.4V @ 1.5A
Current - Output：1.5A
Current - Quiescent (Iq)：2.5 mA
Current - Supply (Max)：-
PSRR：65dB ~ 55dB (120Hz ~ 1kHz)
Control Features：-
Protection Features：Over Current, Over Temperature
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：6-VDFN Exposed Pad
Supplier Device Package：6-DFN (3x3)
Grade：-
Qualification：-

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LD39150PU33R

Overview

The LD39150PU33R is a positive fixed linear LDO regulator manufactured by STMicroelectronics. It provides a fixed 3.3V output with a maximum current of 1.5A. The device operates from an input voltage range up to 6V and features a typical dropout voltage of 200mV at full load. Quiescent current is specified at 2.5mA. It includes overcurrent and thermal shutdown protection, operates within -40°C to 125°C junction temperature, and is housed in a 6-DFN (3x3mm) package with a bare pad.

Feature Summary

Ultra-low dropout voltage performance for efficient power management
Logic-controlled electronic shutdown capability
Internal overcurrent and thermal limit protection
Stable operation with ceramic capacitors

Applications

Low voltage microprocessor power supplies
Memory circuit powering
Battery-powered portable devices
General purpose low noise regulation

Procurement Notes

Verify component authenticity through authorized channels as the part status is listed as obsolete. Confirm final assembly location codes and date codes against the latest product change notices. Ensure ESD handling protocols are followed during installation due to the exposed pad DFN package design.

Selection Notes

Select this component when a fixed 3.3V rail is required with high current capability in a compact footprint. Consider the 6V absolute maximum input rating and the specific quiescent current profile for battery life calculations. Verify thermal dissipation requirements based on the expected load current and ambient temperature conditions.

Part Context

This part belongs to the LD39150 family of ultra-low drop regulators developed on a BiCMOS process. The series offers various output voltages and packages including DFN6, PPAK, and DPAK. The PU33R suffix indicates the fixed 3.3V output version in the 6-DFN reel packaging format.