FAN5361UC19X ON Semiconductor Integrated Circuit (BGA) In Stock
ON Semiconductor FAN5361UC19X is a 6 MHz synchronous buck regulator delivering up to 750 mA output current from a 2.3-5.5 V input range in a miniature BGA package. It supports both PWM and pulse-frequency modulation modes for high efficiency across load conditions. Note: this part is now obsolete.
- Manufacturer
- ON Semiconductor
- Package
- BGA
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- FAN5361UC19X Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2632(MOQ 5)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 6 MHz switching frequency enables use of tiny external inductors and capacitors, minimizing total solution footprint in BGA form
- Dual-mode operation: PWM voltage-mode control at full load and automatic PFM at light load maximize efficiency across the entire current range up to 750 mA
- 2.3 V to 5.5 V wide input range accepts single-cell Li-ion and 3.3 V / 5 V system rails without an additional pre-regulator
Applications
The FAN5361UC19X targets ultra-compact mobile and IoT devices that require an efficient point-of-load DC-DC converter from a 1-cell lithium-ion or USB 5V source. Its 6 MHz switching frequency lets engineers use sub-1 µH inductors and single-digit µF ceramic capacitors, critical for thin smartwatch, fitness tracker, and wireless sensor node PCBs. The automatic PFM mode at light loads extends battery life in standby-dominated IoT applications where average current consumption is below 10 mA.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | 567RR |
| YTEOL | 0 |
| Additional Feature | ALSO CONFIGURE IN PULSE FREQUENCY MODULATION |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.3V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PBGA-B6 |
| JESD-609 Code | e1 |
| Number of Functions | 1 |
| Output Current-Max | 0.6A |
| Output Voltage-Nom | 1.9V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA6,2X3,16 |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 6600kHz |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | TIN SILVER COPPER |
| Terminal Form | BALL |
| Terminal Pitch | 0.4mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What switching frequency and output current does FAN5361UC19X support, and why does the 6 MHz rate benefit PCB layout?
The FAN5361UC19X switches at 6 MHz and delivers up to 750 mA output current. At 6 MHz, the required inductor value drops to well below 1 µH and output capacitors can be reduced to a few µF of ceramic, shrinking the total power stage footprint to under 5 mm² — a significant advantage in hand-held and wearable devices.
How does the PFM mode in FAN5361UC19X extend battery life in IoT sensor nodes at light loads?
In PFM (Pulse Frequency Modulation) mode, the FAN5361UC19X fires switching pulses only as needed to maintain output voltage, dramatically reducing switching losses below 50 mA load. In a wireless sensor node drawing 5 mA in sleep mode, PFM operation can cut regulator quiescent losses by more than 50% compared to continuous PWM, adding hours to battery life on a 500 mAh cell.
What is the input voltage range of FAN5361UC19X, and which battery chemistries or supply rails are compatible?
The FAN5361UC19X accepts inputs from 2.3 V to 5.5 V. This range covers a single-cell lithium-ion battery (2.7 V to 4.2 V), alkaline AA cells (2× 1.5 V = 3.0 V fresh), and standard 3.3 V or 5 V regulated rails, making one design compatible with battery-powered and USB-powered product variants without hardware changes.
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Why Buy from FindMyChip
About ON Semiconductor
ON Semiconductor (onsemi) provides intelligent power and sensing technologies for automotive, industrial, IoT, and cloud infrastructure applications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $60.0000 | $300.00 |
| 1000+ | $0.3523 | $352.30 |
| 10000+ | $0.3141 | $3141.00 |
| 100000+ | $0.2632 | $26320.00 |
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