EL7554IREZ

EL7554IREZ is a monolithic 4A DC/DC step-down regulator. It is a full-feature synchronous 4A step-down regulator capable of up to 96% efficiency. This device operates from 3V to 6V VIN input supply. With internal CMOS power FETs, the device can operate at upto 100% duty ratio, allowing for output voltage range from 0.8V upto nearly VIN. The adjustable high switching frequency of upto 1MHz enables the use of small components, making the whole converter occupy less than 0.58 square inch with components on one side of the PCB. The EL7554 operates at constant frequency PWM mode, making external synchronization possible. It features soft-start and full start-up control, which eliminates the in-rush current and enables users to control the start-up of multiple converters to any configuration with ease. Application includes point-of-regulation power supplies, FPGA Core and I/O supplies, DSP, CPU Core, and IO supplies, logic/Bus supplies, portable equipment.

• Integrated MOSFETs, 4A continuous output current
• Upto 96% efficiency, all ceramic capacitors
• Multiple supply start-up tracking, built-in ±5% voltage margining
• 0.58 in² footprint with components on one side of PCB
• Adjustable switching frequency to 1MHz, oscillator synchronization possible
• 100% duty ratio, junction temperature indicator
• Over-temperature protection, internal soft-start
• Variable output voltage down to 0.8V, power-good indicator
• Switching frequency range from 300KHz to 440KHz (VDD = VIN = 3.3V, TA = TJ = +25°C)
• 28 lead HTSSOP package, operating temperature range from -40°C to +85°C

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.