LD1117STR

$0.31

Description：IC REG LIN POS ADJ 800MA SOT-223
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:9ac944c13269 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LIN POS ADJ 800MA SOT-223
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)
Output Configuration：Positive
Output Type：Adjustable
Number of Regulators：1
Voltage - Input (Max)：15V
Voltage - Output (Min/Fixed)：1.25V
Voltage - Output (Max)：15V
Voltage Dropout (Max)：1.2V @ 800mA
Current - Output：800mA
Current - Quiescent (Iq)：5 mA
Current - Supply (Max)：-
PSRR：75dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature
Operating Temperature：0°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：TO-261-4, TO-261AA
Supplier Device Package：SOT-223
Grade：-
Qualification：-

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LD1117STR

Overview

The LD1117STR is a positive adjustable linear low-dropout voltage regulator manufactured by STMicroelectronics. It provides an output current of up to 800 mA with a maximum input voltage of 15 V and an adjustable output range from 1.25 V to 15 V. The device features a maximum dropout voltage of 1.2 V at full load and a typical quiescent current of 5 mA. It includes internal overcurrent and thermal overload protection mechanisms. The component operates within a temperature range of 0°C to 125°C and utilizes a SOT-223 surface-mount package.

Feature Summary

Integrated overcurrent and thermal overload protection for enhanced operational safety
High efficiency design utilizing NPN pass transistor technology
Requires only a standard 10 μF minimum capacitor for stability

Applications

Battery-powered systems requiring efficient power management
General-purpose post-regulation circuits
Local on-card regulation architectures

Procurement Notes

Verify the specific suffix 'STR' indicates tape-and-reel packaging configuration when sourcing components. Confirm RoHS compliance status aligns with project requirements, as indicated by ECOPACK2 standards. Ensure the supplier documentation matches the STMicroelectronics datasheet specifications for the LD1117 series to guarantee functional equivalence and parameter accuracy during integration.

Selection Notes

Select this component for applications requiring a single positive output with adjustable voltage settings. The SOT-223 package offers space-saving benefits compared to through-hole alternatives while maintaining adequate thermal performance. Consider the 800 mA current limit when designing for peak load conditions and ensure adequate heat dissipation strategies are implemented for high differential voltage scenarios.

Part Context

This part belongs to the LD1117 family of low-dropout regulators produced by STMicroelectronics. The family includes fixed voltage variants such as 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V options. The STR suffix specifically denotes the surface-mount SOT-223 package format optimized for automated assembly processes in modern electronic manufacturing.