MaxLinear XRP7675

Description

The XRP7675 is a 3A capable synchronous current-mode PWM step down (buck) voltage regulator with improved light current load efficiency. A wide 4.5V to 18V input voltage range allows for single supply operations from industry standard 5V and 12V power rails.

With a 340kHz constant operating frequency and integrated high and low-side 100mΩ/100mΩ MOSFETs, the XRP7675 reduces the overall component count and solution footprint. Current-mode control provides fast transient response and cycle-by-cycle OCP. An adjustable soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 0.1µA. At light current loads, the XRP7675 operates in Discontinuous Conduction Mode (DCM) and is complemented by a pulse frequency modulation mode (PFM) to provide excellent conversion efficiency.

Built-in output over-voltage (open load), over temperature, cycle-by-cycle over-current, under-voltage lockout (UVLO) and hiccup mode short-circuit protection insures safe operation under abnormal operating conditions.

The XRP7675 is offered in a RoHS compliant, "green"/halogen free 8-pin Exposed Pad SOIC package.

Features

3A Continuous Output Current

• 4.5V to 18V Wide Input Voltage ◦0.925V to 16V Adjustable Output Voltage

• ◦2% Accuracy

• PWM Current Mode Control ◦340kHz Constant Operations

• ◦Up to 95% Efficiency

• Light Load Efficiency

• Programmable Soft-Start and Enable Function

• Built-in Thermal, Over Current, UVLO and Output Over Voltage Protections

• Pin/Function Upgrade to Exar XRP7665 and MPS MP1484/2307

• RoHS Compliant, "Green"/Halogen Free 8-Pin SOIC Package

Typical applications

• Portable Equipment
• Distributed Power Architecture
• Audio-Video Equipment
• Point of Load Converter

More information

• Datasheet
• IC product information