Request Quote
(Ships tomorrow)
AP1117KG-13 Equivalent & Substitute Parts
Part Overview
The AP1117KG-13 is a linear voltage regulator IC from Diodes Incorporated designed for positive adjustable output applications. It delivers 1A output current with an adjustable output voltage range of 1.25V to 5V, housed in a TO-263-3 (D2PAK) surface mount package. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AP1117KG-13 |
| Manufacturer | Diodes Incorporated |
| Category | Power Management (PMIC) |
| Description | IC REG LINEAR POS ADJ 1A TO263 |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Voltage - Input (Max) | 18V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 5V |
| Current - Output | 1A |
| Voltage Dropout (Max) | 1.4V @ 1A |
| Operating Temperature | 0°C ~ 125°C (TJ) |
| Package / Case | TO-263-3, D2PAK (2 Leads + Tab) |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the AP1117KG-13 is determined by the following critical parameters:
- Package Compatibility: Both main and substitute parts must use TO-263-3 (D2PAK) surface mount packaging to ensure mechanical and thermal compatibility with existing PCB layouts.
- Output Configuration: Positive adjustable output topology is required to maintain functional equivalence.
- Voltage Range: The substitute must support the required output voltage range (minimum 1.25V, maximum at least 5V).
- Current Rating: The substitute must deliver at least 1A output current to meet or exceed the original specification.
- Thermal and Electrical Characteristics: Operating temperature range, dropout voltage, and protection features must be compatible with the application requirements.
The LD1086D2TTR from STMicroelectronics meets all substitution criteria while offering enhanced specifications and active product status.
Parameter Comparison
| Parameter | AP1117KG-13 (Main) | LD1086D2TTR (Substitute) |
|---|---|---|
| Manufacturer | Diodes Incorporated | STMicroelectronics |
| Output Configuration | Positive | Positive |
| Output Type | Adjustable | Adjustable |
| Voltage - Input (Max) | 18V | 30V |
| Voltage - Output (Min/Fixed) | 1.25V | 1.25V |
| Voltage - Output (Max) | 5V | 28.5V |
| Current - Output | 1A | 1.5A |
| Voltage Dropout (Max) | 1.4V @ 1A | 1.5V @ 1.5A |
| Current - Quiescent (Iq) | 10 mA | 10 mA |
| Operating Temperature | 0°C ~ 125°C | -40°C ~ 125°C |
| Package / Case | TO-263-3, D2PAK | TO-263-3, D2PAK |
| Product Status | Obsolete | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Protection Features | Over Current, Over Temperature | Over Current, Over Temperature |
Engineering Selection Recommendations
The LD1086D2TTR is a direct functional substitute for the AP1117KG-13 based on the following engineering criteria:
- Package Equivalence: Both devices use identical TO-263-3 (D2PAK) surface mount packaging, enabling direct PCB layout compatibility without redesign.
- Electrical Compatibility: The LD1086D2TTR maintains the same adjustable output voltage range (1.25V minimum) and exceeds the current rating (1.5A vs. 1A), providing design margin for the original application.
- Compliance Status: Both parts are ROHS3 compliant and carry identical REACH and ECCN classifications, ensuring regulatory continuity.
- Product Availability: The LD1086D2TTR holds active product status with confirmed inventory availability, addressing the obsolescence of the AP1117KG-13.
- Thermal Performance: The extended operating temperature range (-40°C to 125°C) of the LD1086D2TTR provides broader environmental coverage compared to the original part (0°C to 125°C).
Frequently Asked Questions (FAQ)
Q: Can the LD1086D2TTR be used as a direct replacement for the AP1117KG-13 without PCB modifications?
A: Yes. Both devices share identical TO-263-3 (D2PAK) packaging with the same pinout and thermal tab configuration. No PCB layout changes are required for mechanical or electrical integration.
Q: What are the key differences between these two regulators?
A: The LD1086D2TTR offers higher maximum input voltage (30V vs. 18V), increased output current capability (1.5A vs. 1A), extended lower operating temperature limit (-40°C vs. 0°C), and active product status. The adjustable output voltage range and quiescent current remain identical.
Q: Is the LD1086D2TTR suitable for applications requiring the full 5V output of the AP1117KG-13?
A: Yes. The LD1086D2TTR supports adjustable output up to 28.5V, which exceeds the 5V maximum requirement of the original application. The device can be configured for any output voltage within the 1.25V to 5V range using standard external resistor dividers.
Q: Are there any compliance or certification concerns when substituting the LD1086D2TTR?
A: No. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical ECCN (EAR99) and HTSUS classifications. Regulatory documentation remains consistent across the substitution.
Q: What is the impact of the higher quiescent current specification on system design?
A: Both devices specify identical quiescent current (10 mA), so there is no impact on standby power consumption or system design considerations.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts