My Inquiry
My Account
onsemi FAN4860UMP5X
- Part No.:
- FAN4860UMP5X
- Manufacturer:
- onsemi
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
FAN4860UMP5X.pdf
- Description:
- IC REG BOOST 5V 930MA 6UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,460
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
FAN4860UMP5X from ON Semiconductor (formerly Fairchild) is a 3 MHz synchronous TinyBoost™ DC-DC boost regulator in a 6-pin 2×2 mm UMLP package, delivering fixed 5.0 V output from 2.3–4.5 V input, supporting ≥300 mA load at VIN=3.3 V, and achieving up to 92% efficiency for USB OTG and HDMI power rails.
For engineers reviewing the FAN4860UMP5X datasheet, pinout, applications, or equivalent options, this page provides verified technical context, real-world load capability data, thermal resistance (θJA = 57 °C/W), shutdown quiescent current (<1.5 µA), and validated alternative options for 5 V boost supply designs.
Technical Context
The FAN4860UMP5X implements variable on-time pulse frequency modulation (PFM) with automatic seamless transition between PWM and PFM modes to maintain high efficiency across 0–300 mA loads. It uses current-mode control with cycle-by-cycle peak current limiting (1100 mA typical for 5.0 V output) and built-in soft-start with VIN-dependent timing.
It integrates an N-channel boost switch (RDS(ON) = 300 mΩ) and P-channel synchronous rectifier (RDS(ON) = 400 mΩ), enabling true load disconnect during shutdown and eliminating external diode requirements. Thermal shutdown activates at 150 °C with 30 °C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2.5% over 2.3–4.5 V input and 0–200 mA load; ensures stable USB/HDMI rail compliance. |
| Switching Frequency | 3 MHz nominal in PWM mode; enables use of tiny 1 µH inductor and 0402/0603 capacitors for space-constrained portable designs. |
| Max Output Current | 300 mA at VIN = 3.3 V, VOUT = 5.0 V; sufficient for powering HDMI transceivers or dual H-bridge motor drivers. |
| Quiescent Current | 37–45 µA in regulation, <1.5 µA in shutdown; extends battery life in always-on portable instrumentation. |
| Junction-to-Ambient θJA | 57 °C/W (UMLP package); allows >250 mA continuous operation at +85 °C ambient with minimal PCB copper. |
| UVLO Threshold | 2.3 V rising with 190 mV hysteresis; prevents erratic startup near Li-ion battery discharge cutoff. |
| Enable Logic Levels | VENH = 1.05 V min, VENL = 0.4 V max; compatible with 1.8 V / 3.3 V GPIO without level-shifting. |
Pinout & Package
Package: 6-pin UMLP (2 × 2 mm, 0.5 mm pitch), ultra-thin profile suitable for slim mobile and wearable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input Power Supply | Connects to single-cell Li-ion (2.3–5.4 V); requires local 2.2 µF X5R 0402 capacitor for stability. |
| SW | Switching Node | Drives external 1 µH inductor; high dv/dt node requiring tight layout and ground shielding. |
| EN | Enable Control | Active-high logic input; must be pulled high or driven-floating causes undefined operation. |
| FB | Feedback Sense | Monitors regulated 5.0 V output via resistive divider (internal for fixed-VOUT variants like FAN4860UMP5X). |
| VOUT | Regulated Output | Delivers 5.0 V to load; also supplies internal bias-requires ≥4.7 µF X5R 0603 ceramic capacitor. |
| GND | Power & Signal Ground | Single-point ground reference for all pins; must connect directly to thermal pad under UMLP package. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P-channel MOSFET eliminates external Schottky diode, reducing BOM count and forward drop losses. |
| True load disconnect | Zero reverse leakage (<10 nA) and open-circuit isolation between VIN and VOUT during shutdown-critical for battery safety. |
| Light-load PFM mode | Glitch-free automatic entry below ~10 mA; maintains regulation with only 37 µA quiescent current at no load. |
| Thermal & overload protection | Auto-recovering thermal shutdown (150 °C) and cycle-by-cycle current limit prevent damage during short-circuit events. |
| Compact external components | Supports 1 µH 0805 inductor and 0402 input / 0603 output capacitors-enables <3 mm² total solution area. |
Applications
| USB OTG 5 V Supply | HDMI Transmitter Power |
|---|---|
Use Scenario: Providing regulated 5 V to USB On-The-Go peripherals from a 3.3 V system rail or single-cell battery. IC Role / Device Role / Timing Role: Primary boost converter supplying clean, low-noise 5 V power with fast transient response to handle plug/unplug events. Use Value: Enables host functionality in smartphones and tablets without requiring separate 5 V charge pump or buck-boost IC. |
Use Scenario: Powering HDMI transmitter ICs (e.g., TFP410, SiI9134) that require stable 5 V I/O supply independent of core voltage. IC Role / Device Role / Timing Role: Fixed-output boost regulator delivering low-ripple 5 V with <±2.5% accuracy across temperature and load. Use Value: Meets HDMI specification's 5 V ±5% tolerance while maintaining >90% efficiency at 150 mA typical load. |
| Portable Media Player Core Rail | Smartphone Camera Flash Driver |
Use Scenario: Generating 5.0 V for audio DACs, SD card interfaces, or display backlight drivers in battery-powered media players. IC Role / Device Role / Timing Role: High-efficiency boost stage operating in PFM at standby and PWM under active playback. Use Value: Extends playback time by minimizing quiescent draw and maximizing conversion efficiency across 2.3–4.5 V battery range. |
Use Scenario: Supplying 5 V to white LED flash drivers (e.g., AS3645A) requiring precise voltage and fast turn-on response. IC Role / Device Role / Timing Role: Fast-starting boost regulator with <400 µs soft-start time and 300 mA peak capability for burst-mode flash operation. Use Value: Delivers full 5 V within 1 ms of enable assertion, supporting sub-100 ms camera shutter latency requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61200DRCT | Adjustable output (0.9–5.5 V), higher 3.3 A switch current, but larger 3×3 mm QFN package and 1.2 MHz switching frequency. | Requires external feedback resistors; better suited for multi-rail systems needing programmability, not fixed 5 V. | Select when output voltage flexibility or higher current (>300 mA) is required; avoid if board space or 3 MHz EMI filtering is critical. |
| MAX8642ETA+ | Fixed 5.0 V output, 2.5 MHz switching, 400 mA max, but uses 2×2 mm TDFN with exposed pad and higher 65 µA quiescent current. | Lacks true load disconnect; exhibits ~2 µA reverse leakage-unsuitable for battery-isolation-critical designs. | Choose for legacy MAXIM-based designs where footprint compatibility exists; verify shutdown isolation requirements. |
Compared with TPS61200DRCT and MAX8642ETA+, the FAN4860UMP5X offers superior shutdown isolation (<10 nA), lower quiescent current (37 µA), and smaller 2×2 mm UMLP footprint-making it optimal for space- and battery-life-constrained 5 V boost applications.
Availability
FAN4860UMP5X is available at Aetrix Electronics and suitable for USB OTG power delivery, HDMI transmitter supply, and portable media player core rail applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for FAN4860UMP5X includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
ON Semiconductor is a global semiconductor supplier specializing in energy-efficient power management, analog, sensor, and logic solutions for automotive, industrial, and portable electronics.
The FAN4860 series belongs to ON Semiconductor's TinyBoost™ family of ultra-compact synchronous boost regulators, designed specifically for battery-powered portable devices requiring high efficiency, minimal external components, and robust protection features.
FAQ
What is the output voltage option for FAN4860UMP5X?
The FAN4860UMP5X is factory-configured for fixed 5.0 V output. Unlike adjustable variants, it does not require external feedback resistors-its FB pin is internally connected to achieve ±2.5% regulation across temperature and load. This simplifies design for USB OTG and HDMI applications where 5.0 V is mandatory.
Does FAN4860UMP5X support true load disconnect during shutdown?
Yes, FAN4860UMP5X provides true load disconnect: when EN is low, both VIN-to-VOUT and VOUT-to-VIN current paths are fully blocked, with VOUT leakage <10 nA and reverse leakage <2.5 µA. This prevents battery drain and protects downstream circuits-critical for always-connected portable devices.
What is the maximum continuous output current for FAN4860UMP5X at 3.3 V input?
At VIN = 3.3 V and VOUT = 5.0 V, FAN4860UMP5X delivers up to 300 mA continuously while maintaining regulation and thermal safety (TJ ≤ 125 °C). This is validated per datasheet Figure 10 and Table "Maximum Output Current" for 5.0 VOUT configuration under recommended PCB layout conditions.
Can FAN4860UMP5X operate with a 1 µH inductor and 0402 capacitors?
Yes-FAN4860UMP5X is optimized for minimal external components: Murata LQM21PN1R0MC0 (1 µH, 0805) inductor and 0402-case 2.2 µF input / 0603-case 4.7 µF output capacitors meet all stability and ripple requirements. The 3 MHz switching frequency enables this compact implementation without sacrificing efficiency or transient response.
What thermal performance can be expected from the UMLP package of FAN4860UMP5X?
The FAN4860UMP5X in UMLP-6 package has a junction-to-ambient thermal resistance (θJA) of 57 °C/W under JEDEC JESD51-7 4-layer board conditions. With proper thermal pad soldering and 100 mm² copper pour, it sustains 250 mA continuous output at +85 °C ambient without derating-validated in datasheet Figure 7 and Thermal Properties table.
FAN4860UMP5X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- TinyBoost®
- Package/Case:
- 6-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 4.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 930mA (Switch)
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UDFN (2x2)
FAN4860UMP5X FAQ
1.How can I place an order for FAN4860UMP5X through Aetrix?
Please submit a Request for Quotation (RFQ) for FAN4860UMP5X on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for FAN4860UMP5X reliable?
The price and inventory of FAN4860UMP5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FAN4860UMP5X is usually 5 days.
3.What payment methods are accepted for FAN4860UMP5X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FAN4860UMP5X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FAN4860UMP5X?
FAN4860UMP5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FAN4860UMP5X order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for FAN4860UMP5X?
For technical support, including FAN4860UMP5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FAN4860UMP5X requirements.
6.How does Aetrix verify that FAN4860UMP5X is sourced from the original manufacturer or authorized distributors?
All FAN4860UMP5X products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FAN4860UMP5X meets industry standards.
7.What is the process for return or replacement of FAN4860UMP5X?
All FAN4860UMP5X units undergo pre-shipment inspection (PSI). If there is an issue with FAN4860UMP5X, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The FAN4860UMP5X part is unused and in its original packaging.
Return procedure for FAN4860UMP5X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FAN4860UMP5X Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
