The IHLP2525CZER100M01 is a power inductor manufactured by Vishay.
Specifications:
- Manufacturer: Vishay
- Series: IHLP
- Inductance: 10 µH
- Tolerance: ±20%
- Current Rating:
- Saturation Current (Isat): 2.5 A
- RMS Current (Irms): 3.0 A
- DC Resistance (DCR): 0.028 Ω (max)
- Frequency Range: Up to 5 MHz
- Operating Temperature Range: -55 °C to +125 °C
- Package/Case: 2525 (6.59 mm x 6.59 mm)
- Height: 4.32 mm
- Termination: SMD (Surface Mount)
- Shielding: Shielded
Descriptions:
- High-current, low-profile inductor designed for power applications.
- Suitable for DC-DC converters, voltage regulator modules (VRMs), and power supplies.
- Shielded construction reduces electromagnetic interference (EMI).
Features:
- High efficiency with low DCR.
- RoHS compliant.
- AEC-Q200 qualified for automotive applications.
- High thermal stability.
- Robust construction for high-reliability applications.
For detailed datasheets, refer to Vishay’s official documentation.
# IHLP2525CZER100M01: Application, Design Considerations, and Implementation
## Practical Application Scenarios
The IHLP2525CZER100M01 from Vishay is a high-current, low-profile inductor designed for demanding power electronics applications. Its 1.0 µH inductance, 10.2 A saturation current, and 11.5 A RMS current rating make it ideal for:
1. DC-DC Converters (Buck/Boost):
- Used in voltage regulator modules (VRMs) for CPUs, GPUs, and FPGAs, where high efficiency and compact size are critical.
- Minimizes switching losses in synchronous buck converters operating at 500 kHz–3 MHz frequencies.
2. Power Supply Filtering:
- Suppresses high-frequency noise in switch-mode power supplies (SMPS) for telecom and industrial equipment.
- Effective in LC filters for EMI reduction, particularly in 48 V intermediate bus architectures.
3. Automotive Systems:
- Supports ADAS, infotainment, and LED drivers due to AEC-Q200 compliance and stable performance under thermal stress (−55 °C to +125 °C).
4. Portable Electronics:
- Enables miniaturization in tablets and drones, where the 2.5 mm × 2.0 mm × 1.0 mm footprint is advantageous.
## Common Design Pitfalls and Avoidance Strategies
1. Thermal Management:
- Pitfall: Overlooking core losses at high frequencies can lead to premature failure.
- Solution: Derate current based on temperature rise (use Vishay’s I²t charts) and ensure adequate PCB copper area for heat dissipation.
2. Saturation Current Misapplication:
- Pitfall: Exceeding Isat (10.2 A) causes inductance drop, increasing ripple current.
- Solution: Design for peak currents ≤80% of Isat and simulate transient loads.
3. Layout-Induced Noise:
- Pitfall: Poor placement near switching nodes introduces parasitic capacitance.
- Solution: Follow manufacturer-recommended layouts—minimize loop area and use ground planes.
4. Frequency Limitations:
- Pitfall: Assuming optimal performance across all frequencies despite core material (iron alloy) losses above 3 MHz.
- Solution: Verify DCR (3.8 mΩ max) and core loss curves for the target frequency.
## Key Technical Considerations for Implementation
1. Parasitic Effects:
- Account for DCR’s impact on efficiency in high-current paths (e.g., use parallel inductors for >15 A loads).
2. Mechanical Stress:
- Avoid excessive board flexure; the IHLP’s non-shielded construction requires robust mounting.
3. Testing and Validation:
- Measure inductance under DC bias (L vs. I curves) to confirm stability in the operating range.
4. Alternate Part Selection:
- For higher frequencies (>5 MHz), consider Vishay’s IHLP-5050 series with lower core losses.
By addressing these factors, designers can leverage the IHLP2525CZER100M01