LD39100PU33RY

$1.02

Description：IC REG LINEAR 3.3V 1A 6-DFN
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:df3816634a63 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 1A 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)：5.5V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.4V @ 1A
Current - Output：1A
Current - Quiescent (Iq)：50 µA
Current - Supply (Max)：300 µA
PSRR：65dB ~ 62dB (1kHz ~ 10kHz)
Control Features：Enable, Power Good
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：6-VDFN Exposed Pad
Supplier Device Package：6-DFN (3x3)
Grade：Automotive
Qualification：AEC-Q100

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LD39100PU33RY

Overview

The LD39100PU33RY is a fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 3.3 V with a maximum continuous output current of 1 A. The device operates within an input voltage range of 1.5 V to 5.5 V and features a typical dropout voltage of 200 mV at full load, with a maximum specified at 400 mV. Quiescent current is typically 200 µA under load. The component is housed in a surface-mount DFN-6 package and is qualified to the AEC-Q100 automotive standard. It supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

Logic-controlled electronic shutdown function enables deep sleep mode for extended battery life
Inherent stability when used with ceramic capacitors on both input and output terminals
Integrated protection mechanisms including short-circuit constant current limiting and thermal overload shutdown

Applications

Low-power battery-operated portable electronics
Automotive infotainment and sensor power systems
Noise-sensitive RF and communication circuitry

Procurement Notes

Verify the specific suffix 'RY' against the manufacturer's official datasheet to confirm package type and reel specifications. Ensure compatibility with AEC-Q100 requirements if deploying in automotive environments. Confirm moisture sensitivity level handling procedures during assembly to prevent damage.

Selection Notes

Select this regulator for designs requiring high efficiency with minimal external components due to ceramic capacitor stability. The AEC-Q100 qualification makes it suitable for automotive applications where reliability is critical. Consider the 3.3 V fixed output and 1 A current capability against system power budget constraints.

Part Context

This component belongs to the LD39100 series of ultra-low dropout regulators designed for low quiescent current and low noise performance. The series offers various fixed output voltages and adjustable options, catering to diverse power management needs in compact form factors like the DFN-6 package.