ADP3339AKCZ-3.3-RL: High-Performance 3.3V 1.5A Linear Voltage Regulator | Analog Devices
ADP3339AKCZ-3.3-RL: The Ultimate 3.3V 1.5A Linear Voltage Regulator for Precision Power Management
Engineered by Analog Devices Inc., the ADP3339AKCZ-3.3-RL stands as a benchmark in linear voltage regulation, delivering unmatched stability and efficiency for modern electronics. This 3.3V fixed-output LDO regulator is designed to meet the rigorous demands of compact, high-performance applications, making it a preferred choice for engineers worldwide.
In-Depth Technical Specifications
- Part Number: ADP3339AKCZ-3.3-RL (Analog Devices)
- Category: PMIC - Linear Voltage Regulators
- Output Voltage: 3.3V ( 1% accuracy)
- Maximum Input Voltage: 6V
- Dropout Voltage: Ultra-low 0.48V at 1.5A load
- Output Current: 1.5A continuous
- Quiescent Current: Just 200 A (typ.)
- Protections: Over-current (OCP), Over-temperature (OTP)
- Package: Space-saving SOT-223-3 (TO-261AA)
- Operating Range: -40 C to +85 C
- Compliance: RoHS compliant, Pb-free
Why Choose ADP3339AKCZ-3.3-RL? 5 Key Advantages
1. Exceptional Power Efficiency
With a remarkably low dropout voltage of 0.48V at full 1.5A load, this regulator maintains stable 3.3V output even when input voltage dips to 3.78V. The ultra-low 200 A quiescent current maximizes battery life in portable applications.
2. Military-Grade Thermal Performance
The advanced thermal design ensures reliable operation across -40 C to +85 C, with automatic shutdown at 125 C (typ.) via built-in over-temperature protection.
3. Robust Protection Circuitry
Integrated over-current protection (1.8A threshold) and thermal shutdown safeguard both the regulator and downstream components from damage during fault conditions.
4. Space-Optimized Packaging
The SOT-223-3 package (2.3mm height) occupies just 6.5mm 7mm board space - 50% smaller than conventional TO-252 packages while delivering superior thermal performance.
5. Simplified Design Integration
Requires only 1 F ceramic output capacitor for stability, reducing BOM cost and board space versus competitors needing 10 F capacitors.
Comprehensive Application Guide
Ideal Use Cases
- IoT Devices: Powering ESP32, Raspberry Pi Pico, and BLE modules
- Industrial Controls: PLCs, sensor interfaces, HMI panels
- Automotive Electronics: Infotainment systems, telematics units
- Medical Equipment: Portable monitors, diagnostic tools
- Consumer Electronics: Smart home devices, wearables
Design Considerations
For optimal performance:
- Maintain input voltage 3.8V for 1.5A loads
- Use 1 F X7R ceramic capacitor on output
- Provide 10mm copper pad for thermal dissipation
- Keep trace lengths < 20mm for best regulation
Competitive Comparison
| Parameter | ADP3339AKCZ-3.3-RL | LM1117 | TPS7A33 |
|---|---|---|---|
| Dropout Voltage | 0.48V @1.5A | 1.2V @1A | 0.3V @1A |
| Quiescent Current | 200 A | 5mA | 150 A |
| Package Size | SOT-223 (6.5 7mm) | SOT-223 | MSOP-8 |
| Protections | OCP, OTP | OTP only | OCP, OTP |
Purchasing Information
Available through authorized distributors:
- Digi-Key: Stock # 505-ADP3339AKCZ-3.3-RLCT-ND
- Mouser: Stock # 584-ADP3339AKCZ3.3RL
- Lead Time: Typically 8-12 weeks
- Pricing: $1.25/unit (1k quantities)
Conclusion: The Smart Choice for Power-Sensitive Designs
The ADP3339AKCZ-3.3-RL represents the pinnacle of linear regulator technology, combining Analog Devices' renowned precision with robust power delivery. Its exceptional thermal performance, compact footprint, and advanced protection features make it the optimal solution for:
- Space-constrained designs requiring high current
- Battery-powered applications needing ultra-low Iq
- Industrial systems demanding reliable operation
For engineers seeking a no-compromise 3.3V regulator, the ADP3339AKCZ-3.3-RL delivers unparalleled performance in one of the industry's smallest packages. Order samples today to experience its advantages in your next design.