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Diodes Incorporated AZ1117H-5.0TRG1
- Part No.:
- AZ1117H-5.0TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
AZ1117H-5.0TRG1.pdf
- Description:
- IC REG LINEAR 5V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:19,704
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Product details
Overview
AZ1117H-5.0TRG1 from BCD Semiconductor Manufacturing Limited is a fixed-output 5.0V, 1A low-dropout linear regulator in SOT-223 package, featuring 1.15V dropout at full load, ±1% output voltage accuracy over temperature and load, and integrated thermal shutdown and current limiting. It delivers stable 5V power to microcontroller cores, USB peripherals, and logic circuitry in space-constrained industrial and consumer PCBs.
For engineers reviewing the AZ1117H-5.0TRG1 datasheet, AZ1117H-5.0TRG1 pinout, AZ1117H-5.0TRG1 application, or AZ1117H-5.0TRG1 equivalent, this page provides verified electrical specifications, SOT-223 terminal mapping, thermal performance data, and validated drop-in alternatives for 5V LDO replacement in legacy and new designs.
Technical Context
The AZ1117H-5.0TRG1 uses a trimmed bandgap reference and PNP pass transistor architecture to achieve tight output regulation (±1%) across -40°C to +125°C junction temperature. Its internal current limit is factory-trimmed to 1.25–1.35A, ensuring predictable short-circuit behavior without external sensing.
Thermal protection activates at 150°C junction temperature with 25°C hysteresis, enabling safe recovery after overload. The device operates with input voltages up to 20V but requires ≥6.5V minimum input for 5V output under full 1A load due to its 1.15V dropout specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±1% (guaranteed across -40°C to +125°C, 10mA–1A load) |
| Dropout Voltage | 1.15V at 1A (minimum VIN = 6.15V to sustain regulated 5V output) |
| Load Regulation | ≤15mV (change from 10mA to 1A load at fixed VIN–VOUT = 2V) |
| Ripple Rejection | 60–75dB at 120Hz (enables clean 5V supply from noisy DC-DC pre-regulators) |
| Quiescent Current | 5–10mA (low no-load consumption suitable for always-on subsystems) |
| Thermal Shutdown | Activates at 150°C TJ with 25°C hysteresis (prevents permanent silicon damage during sustained overload) |
| ESD Rating | 2000V HBM (supports handling in standard assembly environments without special ESD controls) |
Pinout & Package
SOT-223 package: 3-pin surface-mount thermally enhanced outline with exposed tab (pin 2) tied to output for improved heat dissipation. Pin 1 = INPUT, Pin 2 = OUTPUT, Pin 3 = GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | INPUT | Unregulated DC input (max 20V); must be decoupled with ≥10µF ceramic or tantalum capacitor |
| Pin 2 | OUTPUT | Regulated 5.0V output; electrically and thermally connected to exposed metal tab for PCB heatsinking |
| Pin 3 | GND | Ground reference for feedback and thermal shutdown circuitry; requires low-impedance connection to power plane |
Key Features
| Feature | Design Value |
|---|---|
| Low Dropout | 1.15V at 1A enables operation from 6.15V input - critical for battery-powered 7.4V LiPo or 9V rail systems |
| Output Accuracy | ±1% over full temperature and load range eliminates need for post-regulation trimming in production test |
| Integrated Protection | Factory-trimmed current limit + thermal shutdown replace discrete protection components, reducing BOM count |
| Stable with Low-ESR Caps | Compatible with 10µF ceramic output capacitors (no minimum ESR requirement), simplifying layout and cost |
| Green Packaging | "G1" suffix denotes RoHS-compliant, halogen-free molding compound meeting IPC/JEDEC J-STD-020 moisture sensitivity level 3 |
Applications
| PC Motherboard Power | LCD Monitor Logic Supply |
|---|---|
Use Scenario: Providing clean 5V to southbridge I/O buffers and SMBus controllers on ATX motherboards. IC Role / Device Role / Timing Role: Primary 5V LDO for low-noise digital interface rails requiring <15mV load regulation. Use Value: Eliminates need for external current-sense resistors and discrete thermal cutoffs while maintaining JEDEC-compliant voltage tolerance. |
Use Scenario: Generating 5V for timing controller (TCON) and LVDS transmitter ICs in 24-bit RGB LCD panels. IC Role / Device Role / Timing Role: Fixed-output voltage source with high PSRR to suppress switching noise from adjacent DC-DC converters. Use Value: 75dB ripple rejection at 120Hz ensures stable TCON operation without visible screen flicker or color shift. |
| Graphic Card Auxiliary Rail | ADSL Modem PHY Supply |
Use Scenario: Delivering 5V to PCIe slot detection logic and hot-plug controllers on discrete GPU boards. IC Role / Device Role / Timing Role: Secondary LDO with fast transient response (<10µs settling) for dynamic load changes during GPU state transitions. Use Value: Load transient response holds output within ±2% during 100mA–1A step changes, preventing false PCIe reset assertions. |
Use Scenario: Powering ADSL line driver and analog front-end (AFE) circuits in residential gateways. IC Role / Device Role / Timing Role: Isolated 5V supply referenced to DSL line ground, immune to common-mode surges. Use Value: 150°C thermal shutdown threshold prevents latch-up during prolonged overtemperature events caused by ambient heating in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 5V LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC29302WU-5.0 | Higher dropout (0.4V typ at 3A), wider VIN range (4–26V), TO-263-3 package | Better suited for high-current (>1.5A) or higher-input-voltage (>12V) applications | Select when >1A continuous load or >12V input is required; not pin-compatible with SOT-223 footprint |
| LD1117S50TR | Same 1A rating and SOT-223 package, but ±2% initial accuracy and 1.2V dropout at 1A | Lower cost where ±2% output tolerance is acceptable (e.g., non-critical bias rails) | Use for cost-sensitive designs where 1.15V dropout and ±1% accuracy are not mandatory |
Compared with MIC29302WU-5.0, AZ1117H-5.0TRG1 offers tighter accuracy and lower dropout in a smaller SOT-223 package but lower max current; versus LD1117S50TR, it trades minor cost premium for guaranteed ±1% stability and 0.05V lower dropout-critical for marginal input headroom designs.
Availability
AZ1117H-5.0TRG1 is available at Aetrix Electronics and suitable for PC motherboard power delivery, LCD monitor logic supplies, graphic card auxiliary rails, and ADSL modem PHY circuits requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for AZ1117H-5.0TRG1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
BCD Semiconductor Manufacturing Limited is a China-based fabless analog IC designer specializing in power management, LED drivers, and LDO regulators for industrial and consumer markets since 2003.
The AZ1117 series was developed specifically for cost-sensitive, high-volume applications demanding robust thermal performance and ±1% output accuracy in compact packages-targeting motherboard, display, and telecom infrastructure designs.
FAQ
What is the minimum input voltage required for AZ1117H-5.0TRG1 to maintain regulation at 1A load?
The minimum input voltage is 6.15V, calculated from the 5.0V nominal output plus the 1.15V maximum dropout voltage at 1A. Below this, output voltage drops linearly with input; operation below 6.15V is permissible only if unregulated output is acceptable for the downstream circuit.
Can AZ1117H-5.0TRG1 be used with ceramic output capacitors?
Yes. Unlike older LDOs, the AZ1117H-5.0TRG1 is stable with low-ESR ceramic capacitors as small as 10µF. No series resistor or minimum ESR is required, simplifying filtering design and reducing board area versus tantalum solutions.
How does thermal shutdown behave during sustained overload?
When junction temperature reaches 150°C, the device shuts down output and remains off until temperature falls by 25°C (to ~125°C), then automatically resumes regulation. This hysteresis prevents rapid cycling and allows safe thermal recovery without manual reset.
Is the SOT-223 package lead-free and RoHS compliant?
Yes. The "G1" suffix confirms green, halogen-free, RoHS-compliant packaging per EU Directive 2011/65/EU and IPC/JEDEC J-STD-020 moisture sensitivity level 3, with peak reflow temperature rating of 260°C for 10 seconds.
AZ1117H-5.0TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- AZ1117
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 15V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.25V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (120Hz)
- Control Features:
- -
- Protection Features:
- Thermal Shutdown
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
AZ1117H-5.0TRG1 FAQ
1.How can I place an order for AZ1117H-5.0TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ1117H-5.0TRG1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AZ1117H-5.0TRG1 reliable?
The price and inventory of AZ1117H-5.0TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ1117H-5.0TRG1 is usually 5 days.
3.What payment methods are accepted for AZ1117H-5.0TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ1117H-5.0TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ1117H-5.0TRG1?
AZ1117H-5.0TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ1117H-5.0TRG1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AZ1117H-5.0TRG1?
For technical support, including AZ1117H-5.0TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ1117H-5.0TRG1 requirements.
6.How does Aetrix verify that AZ1117H-5.0TRG1 is sourced from the original manufacturer or authorized distributors?
All AZ1117H-5.0TRG1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AZ1117H-5.0TRG1 meets industry standards.
7.What is the process for return or replacement of AZ1117H-5.0TRG1?
All AZ1117H-5.0TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AZ1117H-5.0TRG1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AZ1117H-5.0TRG1 part is unused and in its original packaging.
Return procedure for AZ1117H-5.0TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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