Alternatives to onsemi FAN5063M
onsemi FAN5063M and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 FAN5063Monsemi | FAN5067Monsemi / Fairchild | RC5060MFairchild Semiconductor / Rochester Electronics | +1more | |
|---|---|---|---|---|
| FFF Compatibility | Matches the 16-pin SOIC layout, but pin descriptions differ slightly (FAN5067 supports 3.3V or 5V Dual transitions, whereas FAN5063 is optimized specifically for 3.3V Dual).Both use the standard 16-pin SOIC package with a body width of 0.154 inches (3.90mm).Provides equivalent dual switch ACPI control for standby and memory states with softstart and current limiting. | Uses a larger 20-pin SOIC package instead of the 16-pin package, requiring a complete PCB land pattern layout redesign.Larger package dimensions (20-pin vs 16-pin) and wider body (0.295" vs 0.154") prevent physical swap.Performs the same high-level task of ACPI dual switch control, supporting standard standby states. | ||
 AI Summary | FAN5063M by onsemi: PMIC - Voltage Regulators - Linear Switching 4 Output Step-Down (Buck) (1), Linear (LDO) (1) 250kHz 16-SOIC. | The FAN5067M is a closely related sibling part from the same family and manufacturer, sharing an identical physical footprint and pinout framework. It was designed for slightly newer Pentium IV platforms but maintains the same basic ACPI state-transition logic. This part is also legacy and has limited active distribution, but remains the closest direct match.
| The RC5060M is an expanded ACPI power controller from the same manufacturer. While it requires a board redesign due to its larger 20-pin SOIC package, it offers reliable standby power transitions and is actively supported and stocked by Rochester Electronics. It is an excellent choice if the circuit layout can be updated to accommodate the larger package.
| |
| Lifecycle Status | Obsolete | Unknown | Unknown | |
| Market Availability | In stock | Unknown | Unknown | |
| REACH | Unknown | Unknown | Unknown | |
| RoHS | RoHS | Unknown | Unknown | |
| Description | PMIC - Voltage Regulators - Linear Switching 4 Output Step-Down (Buck) (1), Linear (LDO) (1) 250kHz 16-SOIC | The FAN5067M is a closely related sibling part from the same family and manufacturer, sharing an identical physical footprint and pinout fra | The RC5060M is an expanded ACPI power controller from the same manufacturer. While it requires a board redesign due to its larger 20-pin SOI | |
| Manufacturer | onsemi | onsemi / Fairchild | Fairchild Semiconductor / Rochester Electronics | |
| Type | Power Management (PMIC) | Component | Component | |
| Datasheet | Open | N/A | N/A | |
| Lead Time | 7 days | Unknown | Unknown | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.31.0001 | - | - | |
| Moisture Sensitivity Level | 3 (168 Hours) | - | - | |
| Topology | Step-Down (Buck) (1), Linear (LDO) (1) | - | - | |
| w/Sequencer | No | - | - | |
| w/LED Driver | No | - | - | |
| w/Supervisor | No | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | - | - | |
| Voltage - Supply | 3.135V ~ 3.465V, 4.75V ~ 5.25V, 11.4V ~ 12.6V | - | - | |
| Number of Outputs | 4 | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
| FAN5071Monsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 FAN1589MXonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 FAN2559MP15Xonsemi | Discontinued | Obsolete | 3Alternatives availableSee Alternatives |
 FAN5702UC20Xonsemi | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi FAN5063M 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 FAN5063M are the FAN5067M (onsemi / Fairchild) and the RC5060M (Fairchild Semiconductor / Rochester Electronics), 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 FAN5063M 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 FAN5063M (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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