Diodes Incorporated AZ1117CH-3.3TRG1
| Parameters | |
|---|---|
| Series | AZ1117C |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | TO-261-4, TO-261AA |
| Mfr | Diodes Incorporated |
| Mounting Type | Surface Mount |
| Operating Temperature | -20°C ~ 125°C (TJ) |
| Voltage - Input (Max) | 15V |
| Output Type | Fixed |
| Current - Output | 1A |
| Supplier Device Package | SOT-223-3 |
| Output Configuration | Positive |
| Current - Quiescent (Iq) | 6 mA |
| Control Features | - |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Number of Regulators | 1 |
| Protection Features | Thermal Shutdown |
| PSRR | 70dB (120Hz) |
| Voltage Dropout (Max) | 1.3V @ 800mA |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | AZ1117 |
| REACH Status | REACH Unaffected |
| Standard Package | 4,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
AZ1117CH-3.3TRG1 LDO linear voltage regulator
The AZ1117CH-3.3TRG1 from Diodes Incorporated is a popular and cost-effective low-dropout (LDO) linear voltage regulator designed to provide a fixed, highly stable 3.3V output from a higher input voltage source. This device is capable of delivering a continuous output current of up to 1A, making it a versatile power management solution for a wide range of applications. Housed in a space-efficient SOT-223 package, which offers a good balance between power dissipation and board space, it features a low dropout voltage—typically 1.1V at 800mA—allowing it to remain regulated even when the input voltage is only slightly above the 3.3V output. Its robust design includes internal current limiting and thermal shutdown protection, ensuring safe and reliable operation under various load conditions.
AZ1117CH-3.3TRG1 Applications
● Consumer Electronics: Providing clean 3.3V rails for set-top boxes, routers, and smart home devices from a 5V or 12V input.
● Industrial Control Systems: Regulating voltage for PLCs, sensor modules, and control boards where stable power is critical for reliable operation.
● Automotive Accessory Modules: Powering infotainment systems, dashcams, and other peripherals that require a local, regulated 3.3V supply.
● Network and Communication Equipment: Serving as a point-of-load (PoL) regulator on PCBs to power FPGAs, ASICs, and transceivers.
● Computer Peripherals: Used in motherboards, hard drives, and other peripherals to generate a secondary 3.3V power rail.
Alternative LDO Regulator Models
When selecting an LDO, key parameters to consider are the output voltage, maximum output current, dropout voltage, input voltage range, and package thermal performance.
● Analog Devices (ADI) ADP3338AKC-3.3: A high-accuracy, low-noise LDO regulator offering superior power supply rejection ratio (PSRR) for noise-sensitive analog circuits.
● Texas Instruments TPS73533QDR: A high-performance LDO featuring very low dropout and an enable pin for power sequencing, ideal for power-sensitive designs.
● ON Semiconductor NCV1117DT-3.3G: An AEC-Q100 qualified automotive-grade version of the 1117, designed for the harsh electrical environment of automotive applications.
● STMicroelectronics LD1117S33TR: A direct competitor with similar specifications, known for its high reliability and robustness in industrial and consumer markets.
