LD39100PU12R

$0.90

Description：IC REG LINEAR 1.2V 1A 6-DFN
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:8e9814e1da70 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 1.2V 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)：1.2V
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
Mounting Type：Surface Mount
Package / Case：6-VDFN Exposed Pad
Supplier Device Package：6-DFN (3x3)
Grade：-
Qualification：-

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LD39100PU12R

Overview

The LD39100PU12R is a fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a nominal output voltage of 1.2 V with a maximum guaranteed 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. It incorporates logic-controlled electronic shutdown, reducing quiescent current to less than 1 µA in off mode. The regulator includes integrated short-circuit constant current limiting and thermal protection mechanisms.

Feature Summary

Logic-controlled enable function for electronic shutdown
Integrated short-circuit current limiting and thermal protection
Stable operation with ceramic capacitors

Applications

Printers
Game consoles
Computer systems
Consumer applications
Automotive post regulation

Procurement Notes

Verify the specific ordering code against official manufacturer documentation to confirm package type and electrical characteristics. Ensure compatibility with required PCB footprint dimensions and thermal management requirements. Confirm that the selected component meets all necessary environmental and reliability standards for the intended application environment.

Selection Notes

Select this component when a stable 1.2 V rail is required from a 1.5 V to 5.5 V source. Consider the DFN6 package size constraints and thermal dissipation capabilities based on ambient temperature and load conditions. Evaluate the need for the Power Good signal and ensure appropriate external pull-up resistors are included in the design if monitoring is required.

Part Context

This part belongs to the LD39100 family of ultra-low-dropout linear regulators designed for low-power battery-operated applications. The series offers various fixed output voltages and adjustable versions within the same package form factor. It is characterized by low noise performance and high power supply rejection ratios suitable for sensitive analog and digital circuits.