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onsemi FAN8060EMPX
- Part No.:
- FAN8060EMPX
- Manufacturer:
- onsemi
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
FAN8060EMPX.pdf
- Description:
- IC REG BUCK ADJ 1A 10MLP
- Quantity:
- Payment:
- Shipping:
Inventory:2,600
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Product details
Overview
FAN8060EMPX from ON Semiconductor is a monolithic, current-mode, synchronous step-down DC/DC regulator delivering up to 1 A continuous output current with 1.2 MHz switching frequency, 2.5–5.5 V input range, and adjustable 1.2–5.5 V output voltage - deployed in portable digital cameras and USB-powered peripheral ports.
For engineers reviewing the FAN8060EMPX datasheet, pinout, applications, or equivalent options, key selection criteria include its selectable 500 mA/1 A current limit, external synchronization (500 kHz–2 MHz), 100% duty cycle capability, and stability with ceramic capacitors - all critical for compact, high-efficiency power rails in space-constrained embedded systems.
Technical Context
The FAN8060EMPX implements peak-current-mode PWM control with internal slope compensation, enabling fast transient response and simplified loop compensation via external RC network on COMP pin. Its dual-input architecture separates AVIN (analog supply) and PVIN (power stage supply) to reduce noise coupling into control circuitry.
Current limit threshold is set by SYNC pin logic level: grounded for 1 A, tied to VIN for 0.5 A - providing hardware-selectable protection without firmware intervention. Pulse-skipping light-load mode maintains >96% efficiency at sub-10 mA loads while preserving regulation accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single-cell Li-ion, USB 5 V, and 3.3 V system rails without pre-regulation. |
| Output Voltage Range | 1.2 V to 5.5 V - adjustable via external resistor divider; enables direct core supply for DSPs and low-voltage I/O. |
| Max Continuous Output Current | 1 A - selectable to 500 mA via SYNC pin; protects downstream circuitry during overload or short-circuit events. |
| Switching Frequency | 1.2 MHz (typical), synchronizable from 500 kHz to 2 MHz - allows EMI tuning and minimizes inductor/capacitor size. |
| Shutdown Current | < 1 µA - ensures battery longevity in always-on portable devices during deep sleep modes. |
| Thermal Resistance θJA | 49 °C/W - validated on 4-layer PCB; enables 1 A operation up to +85°C ambient without forced airflow. |
| Reference Voltage | 1.205 V (typical) at FB pin - sets output accuracy; ±2.4% over temperature ensures stable core voltage under thermal stress. |
Pinout & Package
Package: 10-pin, 3×3 mm molded leadless package (MLP) with exposed thermal pad - RoHS-compliant, green, low-profile design optimized for thermal dissipation and board area reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Logic HIGH activates regulator; internal UVLO prevents false turn-on below 2.19 V input. |
| AVIN | Analog supply | Powers internal reference, error amplifier, and logic; isolated from noisy power stage to preserve regulation accuracy. |
| PVIN | Power input | Supplies gate drivers and high-side PMOS; separate from AVIN to minimize switching noise injection. |
| SW | Switching node | Drain connection of integrated PMOS/NMOS pair; requires tight layout to PGND to suppress EMI and ringing. |
| PGND | Power ground | Return path for NMOS source and inductor; must be low-impedance and physically separated from AGND plane. |
| SYNC | Synchronization & current limit select | Accepts external clock (500 kHz–2 MHz); also selects 1 A (grounded) or 0.5 A (tied to VIN) current limit threshold. |
| SS | Soft-start control | 4 µA internal current source charges external capacitor; controls ramp rate to prevent inrush current and overshoot. |
| COMP | Error amplifier output | Connects to Type-2 compensation network; internal transconductance (1000 µA/V) sets loop gain and phase margin. |
| FB | Voltage feedback | Monitors output via resistor divider; 1.205 V reference enables precise output setting with <±1% initial tolerance. |
| AGND | Analog ground | Reference return for AVIN, FB, COMP, SS; must connect to exposed thermal pad for optimal noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous switching FETs | Integrated PMOS/NMOS eliminates external Schottky diode - reduces conduction loss and improves efficiency above 70% load. |
| External synchronization | Enables EMI reduction by aligning switching edges with system clock; avoids beat frequencies in multi-rail designs. |
| 100% duty cycle operation | Maintains regulation as VIN approaches VOUT - extends usable input range in battery-powered applications nearing end-of-discharge. |
| Pulse-skipping light-load mode | Boosts efficiency to >90% at 10 mA load - critical for standby power budgets in GPS and PDA applications. |
| Stable with ceramic capacitors | Eliminates need for high-ESR electrolytics - enables ultra-compact, low-profile designs using X5R/X7R MLCCs. |
Applications
| Digital Camera Power Rail | USB Peripheral Port Supply |
|---|---|
Use Scenario: Powers image sensor, ISP, and flash LED in compact digital cameras with Li-ion battery input. IC Role / Device Role / Timing Role: Primary step-down regulator delivering 2.8 V/1 A to sensor subsystem with tight ripple (<20 mVpp) and fast load transient response. Use Value: 1.2 MHz switching enables use of 3.3 µH inductor and 10 µF ceramic output cap - reducing solution size by 40% vs. 500 kHz alternatives. |
Use Scenario: Supplies regulated 3.3 V to USB 2.0 host controller and connected peripherals in portable docking stations. IC Role / Device Role / Timing Role: Standby-capable buck converter with <1 µA shutdown current and 100% duty cycle for brownout resilience. Use Value: SYNC pin synchronization to USB SOF signal minimizes conducted EMI in shared PCB layers, easing EMC certification. |
| MP3 Player Core Voltage | DSP Core Supply |
Use Scenario: Generates 1.2 V core voltage for ARM-based audio processor in battery-operated MP3 players. IC Role / Device Role / Timing Role: High-efficiency synchronous buck with pulse-skipping mode maintaining >92% efficiency at 5 mA playback current. Use Value: External soft-start (SS pin) prevents audio pop during power-up; 10-Lead MLP package fits within 8 mm × 8 mm board area constraint. |
Use Scenario: Provides dynamically scalable 1.5 V supply to TI C5000 DSP in industrial data acquisition modules. IC Role / Device Role / Timing Role: Adjustable-output buck with external compensation (COMP pin) supporting custom loop bandwidth for real-time processing loads. Use Value: Selectable 0.5 A/1 A current limit via SYNC pin allows safe operation across multiple DSP variants without redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | Fixed 3.3 V output; no SYNC or current-limit selection; 3.6 V max input; 0.8 µA shutdown current. | Limited to fixed-output applications; lacks programmability for multi-rail systems requiring 1.2–3.3 V flexibility. | Choose when board space is extreme and output voltage is invariant - but not for adjustable or synchronized designs. |
| RT8059GJ6 | 1.5 MHz switching; 2 A rating; no 100% duty cycle; requires external diode; 2.7–5.5 V input. | Higher current capacity trades off light-load efficiency and dropout performance - unsuitable for battery-end-of-life operation. | Prefer for higher-power USB-C PD accessories; avoid where 100% duty cycle or <1 µA shutdown is mandatory. |
Compared with TPS62231DRYR and RT8059GJ6, the FAN8060EMPX uniquely combines hardware-selectable current limit, 100% duty cycle, and external synchronization - making it optimal for portable systems demanding both efficiency across load range and EMI control in dense layouts.
Availability
FAN8060EMPX is available at Aetrix Electronics and suitable for digital camera power rails, USB peripheral port supplies, MP3 player core voltage generation, DSP core supplies, and portable GPS device power management requiring stable component supply and long-term lifecycle support.
Supply support for FAN8060EMPX 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, sensors, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The FAN8060EMPX belongs to ON Semiconductor's high-frequency synchronous buck regulator product line, designed specifically for space-constrained portable electronics requiring high efficiency, low quiescent current, and robust protection features.
FAQ
What is the maximum input voltage the FAN8060EMPX can handle?
The FAN8060EMPX supports an absolute maximum input voltage of 6.0 V on PVIN and AVIN pins, with recommended operating range limited to 2.5 V to 5.5 V. Exceeding 5.5 V may trigger UVLO hysteresis or cause reliability degradation over time. The FAN8060EMPX datasheet specifies 2.5–5.5 V as the validated functional range for guaranteed performance across temperature and load conditions.
How does the SYNC pin affect current limit selection on the FAN8060EMPX?
The SYNC pin on the FAN8060EMPX serves dual functions: synchronization input and current limit selector. When grounded, it configures the FAN8060EMPX for 1 A continuous output current; when tied to VIN, it reduces the limit to 0.5 A. This hardware-based selection operates independently of external clock presence and is active during startup, shutdown, and normal operation.
Can the FAN8060EMPX operate with 100% duty cycle, and what is its practical benefit?
Yes, the FAN8060EMPX supports true 100% duty cycle operation, enabling regulation down to VIN – VDS(ON) of the internal PMOS. This extends usable input range in battery-powered applications - for example, sustaining 3.3 V output from a Li-ion cell dropping to 3.4 V - avoiding premature system shutdown during battery discharge.
What type of output capacitor is recommended for stable operation of the FAN8060EMPX?
The FAN8060EMPX is optimized for ceramic output capacitors (X5R/X7R dielectrics), with 10 µF typical value sufficient for 1 A loads. Its control loop remains stable with ESR as low as 5 mΩ, eliminating need for high-ESR tantalum or aluminum electrolytics. Low-ESR ceramics reduce output ripple and improve transient response without compromising phase margin.
Does the FAN8060EMPX require external compensation, and why is it beneficial?
Yes, the FAN8060EMPX requires external Type-2 compensation via resistors and capacitors connected between COMP and AGND. This provides full control over loop bandwidth, phase margin, and transient response - essential for optimizing performance across varying output voltages, inductor values, and load profiles without sacrificing stability.
FAN8060EMPX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1A
- Frequency - Switching:
- 1.21MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLP (3x3)
FAN8060EMPX FAQ
1.How can I place an order for FAN8060EMPX through Aetrix?
Please submit a Request for Quotation (RFQ) for FAN8060EMPX 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 FAN8060EMPX reliable?
The price and inventory of FAN8060EMPX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FAN8060EMPX is usually 5 days.
3.What payment methods are accepted for FAN8060EMPX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FAN8060EMPX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FAN8060EMPX?
FAN8060EMPX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FAN8060EMPX 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 FAN8060EMPX?
For technical support, including FAN8060EMPX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FAN8060EMPX requirements.
6.How does Aetrix verify that FAN8060EMPX is sourced from the original manufacturer or authorized distributors?
All FAN8060EMPX 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 FAN8060EMPX meets industry standards.
7.What is the process for return or replacement of FAN8060EMPX?
All FAN8060EMPX units undergo pre-shipment inspection (PSI). If there is an issue with FAN8060EMPX, 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 FAN8060EMPX part is unused and in its original packaging.
Return procedure for FAN8060EMPX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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