Monolithic 2Amp DC-DC Step-Down Regulator

The EL7562 is an integrated, synchronous step-down regulator with output voltage adjustable from 1.0V to 3.8V. It is capable of delivering 2A continuous current at up to 95% efficiency. The EL7562 operates at a constant frequency pulse width modulation (PWM) mode, making external synchronization possible. Patented on-chip resistorless current sensing enables current mode control, which provides cycle-by-cycle current limiting, over-current protection, and excellent step load response. The EL7562 is available in a fused-lead 16 Ld QSOP package. With proper external components, the whole converter fits into a less than 0.5 in2 area. The minimal external components and small size make this EL7562 ideal for desktop and portable applications.

Features
• Integrated synchronous MOSFETs and current mode controller
• 2A continuous output current
• Up to 95% efficiency
• 3.3V or 5V nominal input voltage
• Adjustable output from 1V to 3.8V
• Cycle-by-cycle current limit
• Precision reference
• ±0.5% load and line regulation
• Adjustable switching frequency to 1MHz
• Oscillator synchronization possible
• Internal soft-start
• Over-temperature protection
• Under-voltage lockout
• 16 Ld QSOP package
• Pb-free plus anneal available (RoHS compliant)

Applications
• DSP, CPU core and IO supplies
• Logic/Bus supplies
• Portable equipment
• DC-DC converter modules
• GTL + Bus power supply