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AP7340-36FS4-7 Equivalent & Substitute Parts
Part Overview
The AP7340-36FS4-7 is a linear voltage regulator IC manufactured by Diodes Incorporated, designed for positive fixed output regulation at 3.6V with 150mA output current capability. This Surface Mount device operates across -40°C to 85°C and features Enable control and Over Current protection. The part is Active status and ROHS3 compliant, making it suitable for applications requiring compact, low-dropout regulation in portable and embedded systems.
Substitute parts are identified when equivalent electrical performance, output configuration, and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AP7340-36FS4-7 |
| Manufacturer | Diodes Incorporated |
| Category | Power Management (PMIC) |
| Output Voltage (Fixed) | 3.6V |
| Output Current | 150mA |
| Input Voltage (Max) | 5.25V |
| Output Configuration | Positive Fixed |
| Package / Case | 4-XDFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Product Status | Active |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the AP7340-36FS4-7 are qualified based on the following criteria:
Electrical Equivalence:
- Fixed output voltage of 3.6V
- Output current rating of 150mA
- Positive output configuration
- Enable control feature
- Over Current protection
Mechanical Compatibility:
- Surface Mount packaging
- 4-pin package footprint (XDFN or equivalent)
- Exposed pad design
Compliance & Status:
- Active product status
- ROHS3 compliance
- Industrial or Automotive grade qualification
The substitute parts NCV8170AMX360TCG, NCV8170BMX360TCG, TLV71736PDQNT, and TLV71736PDQNR meet these criteria with variations in quiescent current, dropout voltage, PSRR performance, and operating temperature range.
Parameter Comparison
| Parameter | AP7340-36FS4-7 | NCV8170AMX360TCG | NCV8170BMX360TCG | TLV71736PDQNT | TLV71736PDQNR |
|---|---|---|---|---|---|
| Manufacturer | Diodes Incorporated | onsemi | onsemi | Texas Instruments | Texas Instruments |
| Output Voltage (Fixed) | 3.6V | 3.6V | 3.6V | 3.6V | 3.6V |
| Output Current | 150mA | 150mA | 150mA | 150mA | 150mA |
| Input Voltage (Max) | 5.25V | 5.5V | 5.5V | 5.5V | 5.5V |
| Dropout Voltage (Max) | Not specified | 0.24V @ 150mA | 0.24V @ 150mA | 0.35V @ 150mA | 0.35V @ 150mA |
| Quiescent Current (Iq) | 50 µA | 0.9 µA | 0.9 µA | 55 µA | 55 µA |
| PSRR | 75dB (1kHz) | 30dB (1kHz) | 30dB (1kHz) | 70dB ~ 43dB (10Hz ~ 100kHz) | 70dB ~ 43dB (10Hz ~ 100kHz) |
| Control Features | Enable | Enable | Enable | Enable | Enable |
| Protection Features | Over Current | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature, Short Circuit, UVLO | Over Current, Over Temperature, Short Circuit, UVLO |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 85°C (TJ) | -40°C ~ 85°C (TJ) |
| Grade | Industrial | Automotive | Automotive | Industrial | Industrial |
| Package / Case | 4-XDFN Exposed Pad | 4-XDFN Exposed Pad | 4-XDFN Exposed Pad | 4-XDFN Exposed Pad | 4-XDFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
NCV8170AMX360TCG and NCV8170BMX360TCG (onsemi): These parts provide superior quiescent current performance (0.9 µA vs. 50 µA) and lower dropout voltage (0.24V vs. unspecified). Both are Automotive grade with AEC-Q100 qualification and extended operating temperature range (-40°C to 125°C). The onsemi NCV8170 series includes Over Temperature protection in addition to Over Current protection. These parts are suitable for applications where low power consumption and automotive compliance are required.
TLV71736PDQNT and TLV71736PDQNR (Texas Instruments): These Texas Instruments regulators offer comprehensive protection features including Short Circuit and Under Voltage Lockout (UVLO) in addition to Over Current and Over Temperature protection. PSRR performance spans 70dB to 43dB across the 10Hz to 100kHz frequency range. Operating temperature range matches the AP7340-36FS4-7 at -40°C to 85°C. These parts are suitable for applications requiring enhanced protection and noise rejection.
All substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original AP7340-36FS4-7.
Frequently Asked Questions (FAQ)
Q: Can NCV8170AMX360TCG or NCV8170BMX360TCG be used as direct replacements for AP7340-36FS4-7?
A: Yes, both onsemi NCV8170 variants are electrically and mechanically compatible. They provide identical 3.6V fixed output at 150mA with the same 4-XDFN package. The primary differences are improved quiescent current (0.9 µA vs. 50 µA), lower dropout voltage (0.24V vs. unspecified), and extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C). Automotive grade qualification is an additional benefit.
Q: What are the key differences between the onsemi NCV8170 series and Texas Instruments TLV71736 series?
A: The NCV8170 series (both AMX and BMX variants) offers superior quiescent current and dropout voltage performance with Automotive grade qualification. The TLV71736 series provides more comprehensive protection features (Short Circuit and UVLO) and broader PSRR frequency coverage. Both maintain the same output voltage, current rating, and operating temperature range as the original AP7340-36FS4-7.
Q: Are there package compatibility concerns when substituting these parts?
A: All substitute parts use the 4-XDFN Exposed Pad package, which is mechanically compatible with the AP7340-36FS4-7. PCB footprints and thermal pad designs are equivalent, allowing direct board-level substitution without layout modifications.
Q: Which substitute part is best for low-power applications?
A: The onsemi NCV8170AMX360TCG and NCV8170BMX360TCG are optimal for low-power applications due to their significantly lower quiescent current of 0.9 µA compared to 50 µA in the AP7340-36FS4-7 and 55 µA in the TLV71736 variants.
Q: Do all substitute parts meet the same compliance standards as the AP7340-36FS4-7?
A: Yes, all substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the original part. The onsemi variants add Automotive grade qualification with AEC-Q100 certification.
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