LD39020DTPU31R

$0.27

Description：IC REG LINEAR 3.1V 200MA 4-DFN
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:273f7d032fbd Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 3.1V 200MA 4-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)：3.1V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.35V @ 200mA
Current - Output：200mA
Current - Quiescent (Iq)：40 µA
Current - Supply (Max)：-
PSRR：80dB ~ 55dB (1kHz ~ 100kHz)
Control Features：Enable
Protection Features：Over Current, Over Temperature, Soft Start
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：4-XDFN Exposed Pad
Supplier Device Package：4-DFN (1x1)
Grade：-
Qualification：-

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LD39020DTPU31R

Overview

The LD39020DTPU31R is a fixed-output linear regulator IC manufactured by STMicroelectronics. It provides a nominal output voltage of 3.1 V with a maximum guaranteed output current of 200 mA. 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 utilizes a DFN4 1x1 surface-mount package and supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

Logic-controlled electronic shutdown enables total current consumption lower than 0.1 µA in off mode
Internal soft-start circuit controls startup inrush current without external components
Integrated MOSFET discharges the output capacitor when the enable pin is deactivated
Compatible with small ceramic output capacitors for stable operation

Applications

Mobile phones
Tablets
Digital still cameras (DSC)
Cordless phones and similar battery-powered systems
Portable media players

Procurement Notes

Verify that the specific part number matches the required output voltage, tolerance class, and auto-discharge feature configuration. Confirm the package type corresponds to the design footprint requirements. Ensure compliance with environmental directives such as RoHS standards before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring high accuracy and minimal space utilization. The DFN4 1x1 package offers significant size reduction compared to traditional packages. Consider the internal discharge feature if rapid output voltage decay is necessary during system shutdown states.

Part Context

This device belongs to the LD39020 family of ultra-low dropout LDO regulators designed for low-power battery-operated applications. The series emphasizes space-saving packaging and extended operational stability using ceramic capacitors. It integrates thermal protection and constant current limiting for robust performance in portable electronics.