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AZ1117ID-1.8TRG1

DIOAZ1117ID-1.8TRG1

Diodes Incorporated
Linear Voltage Regulator IC Positive Fixed 1 Output 1A TO-252-3
Active4,493 in stock
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Overview

The AZ1117ID-1.8TRG1 is a positive fixed linear voltage regulator providing a stable 1.8V output at up to 1A of current. It is designed for low-voltage applications that require reliable regulation from an input source up to 15V. This component is optimized for stability even when using low-ESR ceramic capacitors, making it suitable for compact modern PCB layouts.

Why Choose This Part

This regulator features a trimmed bandgap reference to ensure output accuracy and includes built-in thermal shutdown and current limiting for robust fault protection. Its compatibility with low-ESR ceramic capacitors allows for reduced board space and lower bill-of-materials costs compared to regulators requiring large tantalum capacitors.

Applications

PC Motherboards
Providing 1.8V logic rails for chipsets and auxiliary low-power components.
USB Powered Devices
Regulating 5V USB bus power down to 1.8V for internal microcontrollers and digital interfaces.
Optical Storage
Supplying stable power to control circuitry in DVD and Blu-ray players.
Embedded Add-on Cards
Local regulation for PCIe or legacy expansion cards requiring 1.8V supply rails.

Key Specifications

PSRR 70dB (120Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case TO-252-3, DPAK (2 Leads + Tab), SC-63
Current - Output 1A
Protection Features Thermal Shutdown
Number of Regulators 1
Output Configuration Positive
Operating Temperature -40degC ~ 125degC (TJ)
Voltage - Input (Max) 15V
Voltage Dropout (Max) 1.4V @ 800mA
Supplier Device Package TO-252-3
Current - Quiescent (Iq) 6 mA
Voltage - Output (Min/Fixed) 1.8V

Getting Started

When integrating this TO-252-3 package, ensure adequate copper pour area on the Tab (Pin 2) for effective heat dissipation. Connect a minimum 10uF ceramic capacitor at the output for stability, and place the input bypass capacitor as close to the VIN pin as possible.

Also Consider

LD1117S18TR STMicroelectronics - A widely available 1.117-series alternative in a SOT-223 package for applications with slightly lower current requirements.
LM1117MPX-1.8/NOPB TITexas Instruments - Offers similar 1.8V fixed output regulation with a proven industry-standard architecture.