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AZ1117CH-1.8TRG1

DIOAZ1117CH-1.8TRG1

Diodes Incorporated
Linear Voltage Regulator IC Positive Fixed 1 Output 1A SOT-223-3
Active31,173 in stock
Datasheet Digi-Key Compare Prices

Overview

The AZ1117CH-1.8TRG1 is a low dropout positive voltage regulator providing a fixed 1.8V output at up to 1A of current. It is designed to provide high-efficiency power conversion with a 70dB PSRR at 120Hz and a maximum input voltage of 15V. This regulator is housed in a SOT-223 package, making it suitable for compact surface-mount power designs.

Why Choose This Part

The device features a high accuracy of 1 percent and integrated thermal shutdown protection to prevent damage during over-temperature conditions. Its ability to handle up to 1.35A peak output current in a standard SOT-223 footprint provides a robust solution for medium-current power requirements.

Applications

Microcontroller Core Power
Providing a stable 1.8V supply for low-voltage MCU cores and digital logic circuits.
Post-Regulation for Switching Supplies
Using high PSRR to clean up noise from 5V or 12V switching DC-DC converters.
High-Efficiency Battery-Powered Systems
Utilizing the low dropout voltage of 1.3V at 800mA to maximize battery life in portable electronics.

Key Specifications

PSRR 70dB (120Hz)
Output Type Fixed
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Current - Output 1A
Protection Features Thermal Shutdown
Number of Regulators 1
Output Configuration Positive
Operating Temperature -20degC ~ 125degC (TJ)
Voltage - Input (Max) 15V
Voltage Dropout (Max) 1.3V @ 800mA
Supplier Device Package SOT-223-3
Current - Quiescent (Iq) 6 mA
Voltage - Output (Min/Fixed) 1.8V

Getting Started

When integrating this LDO, ensure a minimum output capacitor is used as specified in the datasheet to maintain stability. The SOT-223 package requires adequate PCB copper pour area connected to the VOUT/Tab pin for effective heat dissipation during high current operation.

Also Consider

LD1117S18CTR STMicroelectronics - A widely available 1117-series alternative with similar 800mA to 1A current capability in a SOT-223 package.
AMS1117-1.8 Advanced Monolithic Systems - An industry-standard 1117 equivalent often chosen for cost-sensitive applications requiring a fixed 1.8V output.
NCP1117ST18T3G ONonsemi - Offers similar electrical characteristics with a focus on high-reliability thermal performance.