IC Phoenix logo

Home ›  F  › F2 > FAN1616ASX

FAN1616ASX from FAIR,Fairchild Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

FAN1616ASX

Manufacturer: FAIR, FSC

0.5A Adjustable Low Dropout Linear Regulator

Partnumber Manufacturer Quantity Availability
FAN1616ASX FAIR, FSC 4500 In Stock

Description and Introduction

0.5A Adjustable Low Dropout Linear Regulator The FAN1616ASX is a high-voltage, high-frequency half-bridge gate driver manufactured by Fairchild Semiconductor (now part of ON Semiconductor).  

### **Key Specifications:**  
- **Manufacturer:** Fairchild Semiconductor (ON Semiconductor)  
- **Type:** Half-Bridge Gate Driver  
- **Voltage Rating:**  
  - High-side voltage: Up to 600V  
  - Logic input voltage: 3.3V, 5V, and 15V compatible  
- **Output Current:**  
  - Source: 290mA (typical)  
  - Sink: 600mA (typical)  
- **Propagation Delay:** ~100ns (typical)  
- **Switching Frequency:** Up to several hundred kHz  
- **Dead Time:** Adjustable (external resistor)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8  

### **Features:**  
- Bootstrap operation for high-side drive  
- Under-voltage lockout (UVLO) protection  
- Cross-conduction prevention logic  
- Low power consumption  

For exact electrical characteristics and application details, refer to the official datasheet.

Application Scenarios & Design Considerations

0.5A Adjustable Low Dropout Linear Regulator# Technical Documentation: FAN1616ASX High-Efficiency Synchronous Buck Regulator

 Manufacturer : FSC (Fairchild Semiconductor / ON Semiconductor)

## 1. Application Scenarios

### Typical Use Cases
The FAN1616ASX is a 6A, 16V synchronous step-down (buck) switching regulator designed for high-efficiency power conversion in space-constrained applications. Its typical use cases include:

*  Point-of-Load (POL) Regulation : Providing a stable, clean voltage rail (e.g., 1.2V, 1.8V, 3.3V, 5.0V) from an intermediate bus voltage (4.5V to 16V) for processors, FPGAs, ASICs, and memory subsystems.
*  High-Current, Low-Voltage Rails : Efficiently powering modern digital IC cores that require high current at sub-1V to 1.8V levels.
*  Battery-Powered Systems : Converting a single-cell or multi-cell Li-ion battery pack voltage (typically 3.0V to 4.2V per cell) down to system-level voltages in portable devices, drones, and handheld instruments.

### Industry Applications
*  Telecommunications & Networking : Powering line cards, switches, routers, and baseband units where high efficiency and thermal performance are critical.
*  Computing & Storage : Server motherboards, SSD controllers, GPU auxiliary power, and blade server modules.
*  Industrial Automation : PLCs, motor drives, and sensor interface modules requiring robust and reliable power in noisy environments.
*  Consumer Electronics : High-performance set-top boxes, gaming consoles, and digital displays.

### Practical Advantages and Limitations

 Advantages: 
*  High Efficiency (>95% typical) : Achieved through integrated low-RDS(on) MOSFETs and synchronous rectification, minimizing power loss and heat generation.
*  Compact Solution : Integration of control IC, high-side, and low-side MOSFETs into a single 5mm x 6mm MLP package reduces board area.
*  Wide Input Voltage Range (4.5V to 16V) : Accommodates various input sources, including 5V, 12V, and 15V rails.
*  Excellent Transient Response : A constant-frequency, peak-current-mode control architecture provides fast response to sudden load changes.
*  Full Protection Suite : Includes Over-Current Protection (OCP), Over-Voltage Protection (OVP), Under-Voltage Lockout (UVLO), and Thermal Shutdown (TSD).

 Limitations: 
*  Fixed Switching Frequency (600 kHz) : While simplifying EMI filter design, it offers no frequency dithering options for EMI reduction and limits optimization for highest efficiency across all load ranges compared to variable-frequency parts.
*  Maximum 6A Output Current : Not suitable for applications requiring currents significantly above 6A without external paralleling schemes, which add complexity.
*  Requires External Compensation Network : Stability must be tailored via external RC components, increasing design time compared to internally compensated regulators.
*  Thermal Constraints in MLP Package : While thermally enhanced, continuous full-load operation at high ambient temperatures may require careful thermal management via PCB layout.

## 2. Design Considerations

### Common Design Pitfalls and Solutions
1.   Pitfall: Instability or Ringing in Output Voltage. 
    *  Cause : Improper compensation network values or poor feedback (FB) pin routing.
    *  Solution : Calculate compensation components (RC, CC, CF) based on the output LC filter values and desired crossover frequency using the manufacturer's design tool or formulas in the datasheet. Keep the FB trace short and away from noisy switching nodes.

2.   Pitfall

Alternative Part Number

  • LM317M --: Adjustable linear regulator in a similar package with comparable current rating, widely available and a common drop-in substitute.
  • LM1117MPX-ADJ --: Low-dropout adjustable regulator with similar voltage and current specs, suitable replacement in many FAN1616ASX applications.
  • AZ1117CH-ADJ --: Adjustable LDO regulator with comparable ratings and pinout, offering a cost-effective alternative from a different series.
  • LM317DCYR --: Widely available adjustable linear regulator in SOT-223, similar function and current rating, easy drop-in for many FAN1616ASX applications.
  • AMS1117-ADJ --: Low-cost adjustable LDO regulator in SOT-223 with comparable current capability, commonly used as a substitute in power supply designs.
  • LD1117S33TR --: Popular SOT-223 linear regulator family with good availability; choose the adjustable or appropriate fixed version to match the original circuit.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips