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Diodes Incorporated AZ1117IH-3.3TRG1
- Part No.:
- AZ1117IH-3.3TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Description:
- IC REG LINEAR 3.3V 1A SOT223
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
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Product Details
AZ1117IH-3.3TRG1 - 3.3 V, 1 A Industrial LDO
Diodes Incorporated AZ1117IH-3.3TRG1 is the fixed 3.3 V member of the AZ1117I low-dropout regulator family, supplied in the SOT223 package for -40 degrees C to +125 degrees C junction-temperature operation.
The exact orderable, SOT223 package, GH86P marking, 4000-piece tape-and-reel packing, pinout, and electrical limits were checked against Diodes Incorporated data sheet DS38213 Rev. 2-2.
Overview
AZ1117IH-3.3TRG1 is a three-terminal linear regulator intended to produce a nominal 3.3 V rail. It supports loads up to 1 A under the data-sheet test conditions and thermal limits, and combines a trimmed bandgap reference with current limiting and thermal shutdown.
Key Advantages
Fixed 3.3 V output
Integrated feedback resistors remove the external divider required by the adjustable version.
Industrial temperature range
The specified operating junction-temperature range is -40 degrees C to +125 degrees C.
Integrated protection
Current limit and on-chip thermal shutdown protect the regulator during overload and excessive-temperature conditions.
Low-ESR capacitor support
The family is compatible with low-ESR ceramic capacitors when the data-sheet capacitance requirements are observed.
Feature Summary
1 A regulator family
The data sheet specifies 1 A output capability and a typical 1.35 A current-limit point.
Accurate 3.3 V rail
At 25 degrees C, the 3.3 V option is specified from 3.267 V to 3.333 V under the stated operating conditions.
Low dropout
For SOT223 at 0.8 A, dropout is 1.2 V typical and 1.3 V maximum at the stated test condition.
Quiet operation
Typical ripple rejection is 70 dB at 120 Hz and output noise is 0.003% of output voltage from 10 Hz to 10 kHz.
Package & Footprint
Diodes identifies the H package code as SOT223. The catalog records the original package as TO-261-4 / TO-261AA, industry designations for the same four-terminal SOT223 outline including its heat-spreading tab.
- Use the current Diodes SOT223 package drawing and recommended land pattern.
- Connect the tab and pin 2 to the output copper area.
- Place input and output capacitors close to the regulator pins.
- Use adequate copper for heat spreading and verify junction temperature.
Pin Functions
Pin numbering follows the Diodes SOT223 top view for the fixed-output version.
Do not substitute another 1117-family device solely by package name; confirm pin assignment, output voltage, dropout, stability, and thermal ratings.
Key Specifications
| Manufacturer | Diodes Incorporated |
|---|---|
| Device type | Fixed-output low-dropout linear regulator |
| Nominal output | 3.3 V |
| Output voltage at 25 degrees C | 3.267 V minimum, 3.3 V typical, 3.333 V maximum under stated conditions |
| Output current | Up to 1 A subject to electrical and thermal limits |
| Recommended input maximum | 15 V |
| SOT223 dropout at 0.8 A | 1.2 V typical, 1.3 V maximum |
| Quiescent current | 4 mA typical, 6 mA maximum |
| Current limit | 1 A minimum, 1.35 A typical |
| Ripple rejection | 70 dB typical at 120 Hz, 300 mA, and stated capacitor conditions |
| Operating junction temperature | -40 degrees C to +125 degrees C |
| Package | SOT223; catalog designation TO-261-4 / TO-261AA |
| Marking ID | GH86P |
| Packing | 4000 pieces, tape and reel |
Absolute maximum ratings are stress limits, not normal operating targets. Apply the complete data-sheet conditions and thermal calculations.
Replacement Considerations
A candidate replacement must match the fixed 3.3 V output, SOT223 footprint and tab connection, pin order, current capability, dropout across load and temperature, input-voltage range, capacitor stability, protection behavior, temperature rating, marking and reel orientation.
No internal replacement link is asserted because no exact API-confirmed catalog match was established for this product.
Manufacturer Information
Diodes Incorporated lists AZ1117I as an active high-current, wide-input 1 A LDO family. The exact AZ1117IH-3.3TRG1 orderable is identified in the official ordering table as the SOT223 industrial-temperature 3.3 V version with GH86P marking and 4000 units per tape-and-reel carrier.
Applications
USB devices
Generate a local 3.3 V rail where regulator dissipation remains within limits.
Add-on cards
Provide point-of-load regulation for logic and interface circuitry.
DVD players
Supply fixed-voltage control and signal-processing rails.
PC motherboards
Regulate auxiliary 3.3 V loads with appropriate thermal copper area.
Quality & Authenticity
Verify the full AZ1117IH-3.3TRG1 order code, GH86P first-line marking, date and assembly code, SOT223 dimensions, pin-1 orientation, reel label, 4000-piece packing quantity, lead finish, and lot traceability. Diodes documents the device as lead-free, RoHS compliant, and a Green device; verify the applicable compliance record for the received lot.
FAQ
Is this the adjustable version?
No. The -3.3 order suffix identifies the fixed nominal 3.3 V version with integrated feedback resistors.
What package does the H code identify?
For AZ1117I, H identifies SOT223, which corresponds to the catalog's TO-261-4 / TO-261AA designation.
What is the top marking?
The official ordering table identifies GH86P as the marking ID for AZ1117IH-3.3TRG1.
What output capacitor is required?
The data sheet requires at least 10 microfarads at the output and states output-capacitor ESR must be below 20 ohms; account for tolerance, bias, temperature, and layout.
Can the device always deliver 1 A?
No. Available current is constrained by dropout, input voltage, copper area, airflow, ambient temperature, and maximum junction temperature.
Engineering Notice
Before release, validate input and load transients, dropout margin, minimum effective capacitance and ESR, startup behavior, reverse-current exposure, fault recovery, PCB thermal resistance, copper area, airflow, and junction temperature against the current Diodes data sheet and the actual production lot.
AZ1117IH-3.3TRG1 Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- AZ1117I
- 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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.3V @ 800mA
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 6 mA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (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
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