LD1117DT18C

$0.67

Description：IC REG LINEAR 1.8V 800MA DPAK
Series：-
Mfr：STMicroelectronics
Package：Tube

SKU:737963b9d608 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 1.8V 800MA DPAK
Series：-
Mfr：STMicroelectronics
Package：Tube
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：15V
Voltage - Output (Min/Fixed)：1.8V
Voltage - Output (Max)：-
Voltage Dropout (Max)：1.3V @ 800mA
Current - Output：800mA
Current - Quiescent (Iq)：10 mA
Current - Supply (Max)：-
PSRR：75dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
Supplier Device Package：DPAK
Grade：-
Qualification：-

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LD1117DT18C

Overview

The LD1117DT18C is a fixed-output low dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 1.8 V output with a maximum current capability of 800 mA. The device operates within an input voltage range of 3.3 V to 15 V and features a typical dropout voltage of 1.2 V at full load. It utilizes a TO-252-3 (DPAK) surface-mount package and supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

Integrated thermal shutdown and current limiting protection mechanisms
High power supply rejection ratio for noise suppression
Low quiescent current consumption

Applications

Battery-powered equipment
Post-regulators for switching power supplies
Portable electronics

Procurement Notes

Verify the specific suffix 'C' against the manufacturer's official datasheet to confirm the exact tolerance, temperature grade, or packaging variant intended. Ensure the selected component matches the required PCB footprint and thermal dissipation characteristics for the target application environment.

Selection Notes

Select this component when a fixed 1.8 V rail is required with moderate current demands up to 800 mA. Consider the TO-252-3 package for its balance of thermal performance and surface-mount convenience. Verify that the input voltage remains sufficiently above the output to maintain regulation under all expected load conditions.

Part Context

This part belongs to the LD1117 series of positive low dropout regulators known for their simplicity and reliability. The series offers various fixed voltage options and adjustable versions in multiple packages including TO-220, SOT-223, and DPAK. It serves as a common solution for general-purpose linear regulation in industrial and consumer electronics.