Alternatives to onsemi FAN2559MP15X
onsemi FAN2559MP15X and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 FAN2559MP15Xonsemi | FAN2558MP15Xonsemi | LP5912-1.5DRVRTexas Instruments | +1more | |
|---|---|---|---|---|
| FFF Compatibility | Nearly identical pinout, except Pin 2 is No Connect (NC) instead of Noise Bypass (BYP). The bypass capacitor on the board will simply float.Housed in the exact same 2mm x 2mm 6-Lead MLP (DFN) package with identical land pattern.Shares the same 1.5V fixed output voltage, 180mA current rating, input voltage range, and control features. | Highly compatible pin assignment; Pin 2 is No Connect (NC) instead of Noise Bypass (BYP), meaning the existing board capacitor will safely float.Housed in an equivalent 2mm x 2mm 6-WSON package that matches the physical footprint.Matches the 1.5V fixed output and comfortably exceeds the 180mA current ceiling with a 500mA rating. | ||
 AI Summary | FAN2559MP15X by onsemi: Linear Voltage Regulator IC Positive Fixed 1 Output 180mA 6-DFN (2x2). | This is the official manufacturer-recommended substitute from the same family and datasheet. It operates with the same physical footprint and electrical ratings, with the only design change being that the noise bypass capacitor at Pin 2 becomes unused.
| An excellent, active replacement that is nearly drop-in compatible. It preserves the exact control pin configuration (Enable and Power Good) while upgrading the output current capacity to 500mA and offering superior noise performance without requiring a bypass pin.
| |
| Lifecycle Status | Obsolete | Obsolete | Unknown | |
| Market Availability | Discontinued | In stock | Unknown | |
| REACH | REACH | REACH | Unknown | |
| RoHS | RoHS | RoHS | Unknown | |
| Description | Linear Voltage Regulator IC Positive Fixed 1 Output 180mA 6-DFN (2x2) | Linear Voltage Regulator IC Positive Fixed 1 Output 180mA 6-DFN (2x2) | An excellent, active replacement that is nearly drop-in compatible. It preserves the exact control pin configuration (Enable and Power Good) | |
| Manufacturer | onsemi | onsemi | Texas Instruments | |
| Type | Power Management (PMIC) | Power Management (PMIC) | Component | |
| Datasheet | Open | Open | N/A | |
| Lead Time | 4 weeks | 99 weeks | Unknown | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| PSRR | 50dB (100kHz) | - | - | |
| Output Type | Fixed | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 6-VDFN Exposed Pad | - | - | |
| Control Features | Enable, Power Good | - | - | |
| Current - Output | 180mA | - | - | |
| Protection Features | Over Current, Over Temperature | - | - | |
| Number of Regulators | 1 | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 FAN1589MXonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 FAN1587AD15Xonsemi | In stock | Obsolete | 6Alternatives availableSee Alternatives |
 FAN5063Monsemi | In stock | Obsolete | 3Alternatives availableSee Alternatives |
| FAN5071Monsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi FAN2559MP15X is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the onsemi FAN2559MP15X are the FAN2558MP15X (onsemi) and the LP5912-1.5DRVR (Texas Instruments), out of 3 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the FAN2559MP15X are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The FAN2559MP15X (onsemi) is a part in the Power Management (PMIC) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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