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AP1117EG-13 Equivalent & Substitute Parts
Part Overview
The AP1117EG-13 is a linear voltage regulator IC with positive adjustable output, rated for 1A maximum output current in SOT-223-3 surface mount packaging. Manufactured by Diodes Incorporated, this part is classified as obsolete. Due to its obsolete status and limited availability, identifying functionally equivalent active alternatives is essential for design continuity and procurement reliability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AP1117EG-13 |
| Manufacturer | Diodes Incorporated |
| Product Category | Power Management (PMIC) |
| Package Type | SOT-223-3 |
| Output Configuration | Positive Adjustable |
| Maximum Input Voltage | 18V |
| Output Voltage Range | 1.25V to 5V |
| Maximum Output Current | 1A |
| Maximum Dropout Voltage | 1.4V @ 1A |
| Quiescent Current | 10 mA |
| Operating Temperature Range | 0°C to 125°C |
| Product Status | Obsolete |
| RoHS Compliance | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the AP1117EG-13 is determined by the following critical parameters:
- Output configuration (positive adjustable)
- Package type (SOT-223-3 or compatible TO-261-4/TO-261AA footprint)
- Maximum input voltage (18V or higher)
- Output voltage range (minimum 1.25V, maximum 5V or higher)
- Maximum output current (1A or higher)
- Maximum dropout voltage (1.4V or lower at rated current)
- Operating temperature range (0°C to 125°C minimum)
- RoHS3 compliance
All substitute parts listed below meet these criteria and are classified as active products with current manufacturing status, ensuring long-term availability and design reliability.
Parameter Comparison
| Parameter | AP1117EG-13 | AZ1117CH-ADJTRG1 | NCP1117LPSTADT3G | LD1117SC-R | LD1117STR | LT1117CST#TRPBF | LT1117IST#TRPBF | TLV1117CDCYG3 |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Diodes Inc. | Diodes Inc. | onsemi | STMicroelectronics | STMicroelectronics | Analog Devices | Analog Devices | Texas Instruments |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Last Time Buy |
| Package | SOT-223-3 | SOT-223-3 | SOT-223 | SOT-223 | SOT-223 | SOT-223-3 | SOT-223-3 | SOT-223-4 |
| Max Input Voltage | 18V | 15V | 18V | 15V | 15V | 15V | 15V | 15V |
| Output Voltage Range | 1.25V to 5V | 1.25V to 13.7V | 1.25V to 16.6V | 1.25V to 15V | 1.25V to 15V | 1.25V to 13.8V | 1.25V to 13.8V | 1.25V to 13.7V |
| Max Output Current | 1A | 1A | 1A | 800mA | 800mA | 800mA | 800mA | 800mA |
| Max Dropout Voltage | 1.4V @ 1A | 1.3V @ 800mA | 1.4V @ 1A | 1.3V @ 800mA | 1.2V @ 800mA | 1.2V @ 800mA | 1.3V @ 800mA | 1.3V @ 800mA |
| Quiescent Current | 10 mA | 5 mA | 50 µA | 5 mA | 5 mA | Not specified | Not specified | 10 mA |
| PSRR | 60dB (180Hz) | 70dB (120Hz) | 60dB (120Hz) | 75dB (120Hz) | 75dB (120Hz) | 75dB (120Hz) | 75dB (120Hz) | 75dB (120Hz) |
| Operating Temperature | 0°C to 125°C | -20°C to 125°C | 0°C to 125°C | -40°C to 125°C | 0°C to 125°C | 0°C to 125°C | -40°C to 125°C | 0°C to 125°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 3 (168 Hours) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 2 (1 Year) |
Engineering Selection Recommendations
Primary Substitutes (Active Status, Full Compatibility)
NCP1117LPSTADT3G (onsemi) and AZ1117CH-ADJTRG1 (Diodes Incorporated) are the preferred direct replacements. Both maintain the 1A output current rating, 18V maximum input voltage, and SOT-223 package compatibility. NCP1117LPSTADT3G offers superior quiescent current performance (50 µA) and extended output voltage range (1.25V to 16.6V). AZ1117CH-ADJTRG1 provides improved PSRR (70dB) and extended operating temperature range (-20°C to 125°C).
Secondary Substitutes (Active Status, Current Derating)
LD1117SC-R, LD1117STR, LT1117CST#TRPBF, and LT1117IST#TRPBF are functionally equivalent with 800mA maximum output current. These parts are suitable for applications where output current does not exceed 800mA. All maintain SOT-223 package compatibility and ROHS3 compliance. LD1117STR and LT1117IST#TRPBF offer extended operating temperature range (-40°C to 125°C).
Transitional Substitute (Last Time Buy Status)
TLV1117CDCYG3 (Texas Instruments) is classified as Last Time Buy. While currently available and fully compliant with all electrical and mechanical parameters, procurement should prioritize active alternatives for new designs due to eventual discontinuation.
All substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the original part.
Frequently Asked Questions (FAQ)
Q: Can I use LD1117STR as a direct replacement for AP1117EG-13?
A: LD1117STR is mechanically and electrically compatible with SOT-223 package pinout. However, it is rated for 800mA maximum output current versus the AP1117EG-13's 1A rating. Use LD1117STR only if your application requires 800mA or less.
Q: What is the difference between SOT-223-3 and SOT-223-4 packages?
A: SOT-223-3 has three pins (input, output, ground), while SOT-223-4 has four pins with an additional tab for enhanced thermal dissipation. Both are mechanically compatible with TO-261-4 footprints, but verify PCB layout compatibility before substitution.
Q: Why does NCP1117LPSTADT3G have a 50 µA quiescent current while others have 5-10 mA?
A: Lower quiescent current indicates reduced standby power consumption. NCP1117LPSTADT3G's 50 µA specification makes it advantageous for battery-powered or low-power applications where standby current is critical.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting the same regulatory requirements as the AP1117EG-13.
Q: What does "Last Time Buy" status mean for TLV1117CDCYG3?
A: Last Time Buy indicates the manufacturer has announced end-of-life. The part remains available for a limited period but will eventually be discontinued. For new designs, select from active status alternatives.
Q: Can I substitute a part with lower maximum input voltage?
A: No. Parts with 15V maximum input voltage (AZ1117CH-ADJTRG1, LD1117 series, LT1117 series, TLV1117 series) cannot be used in applications requiring 18V input capability. Use only NCP1117LPSTADT3G or AZ1117CH-ADJTRG1 if 18V input is required.
Q: What is the significance of MSL (Moisture Sensitivity Level) rating?
A: MSL rating indicates moisture sensitivity during storage and handling. MSL 1 (unlimited shelf life) is preferred for long-term inventory. AZ1117CH-ADJTRG1 (MSL 3) and TLV1117CDCYG3 (MSL 2) require stricter moisture control during storage and assembly.
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