Professional IC Distribution & Technical Solutions

The EL7556CM is a DC-DC converter IC manufactured by Elantec (now part of Intersil). Below are the factual specifications, descriptions, and features of the part:

Specifications:

• Manufacturer: Elantec (Intersil)
• Type: Synchronous Buck PWM Controller
• Input Voltage Range: 4.5V to 25V
• Output Voltage Range: Adjustable from 0.9V to 5.5V
• Switching Frequency: 300kHz
• Output Current: Up to 6A (with external MOSFETs)
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C
• Package: 16-SOIC

Descriptions:

The EL7556CM is a high-efficiency, synchronous buck PWM controller designed for step-down DC-DC conversion applications. It integrates control logic, gate drivers, and protection features to regulate output voltage efficiently. The IC requires external power MOSFETs to complete the switching converter circuit.

Features:

• Synchronous Rectification: Improves efficiency by reducing power loss.
• Adjustable Output Voltage: Set via external resistors.
• Soft-Start Function: Reduces inrush current during startup.
• Under-Voltage Lockout (UVLO): Ensures proper operation within input voltage range.
• Over-Current Protection (OCP): Safeguards against excessive load currents.
• Thermal Shutdown: Prevents damage from overheating.
• Low Dropout Operation: Maintains regulation even when input voltage is close to output.

This information is strictly technical and does not include application guidance or recommendations.