Description:

The TPS53513 device is a small-sized synchronous step-down buck converter with adaptive on-time D-CAP3™ control mode. This device is easy to use and requires a minimal number of external components, making it suitable for space-constrained power systems. The device features high-performance integrated MOSFETs, a 0.6V voltage reference with ±0.5% accuracy, and an integrated boost switch. Competitive features include an extremely low external component count, fast load transient response, automatic skip-mode operation, internal soft-start control, and compensation-free operation. Forced Continuous Conduction Mode (FCCM) helps meet the stringent voltage regulation accuracy requirements of high-performance DSPs and FPGAs. The TPS53513 device is available in a 28-pin VQFN package and is rated for operation over the ambient temperature range of –40°C to +85°C.

Features:

• Integrated 13.8mΩ and 5.9mΩ MOSFETs with 8A continuous output current

• Supports all ceramic output capacitors

• 600mV reference voltage (accuracy ±0.5%)

• Output voltage range: 0.6V to 5.5V

• D-CAP3™ control mode with fast load-step response (SWIFT™)

• Auto-skip Eco-mode™ for high efficiency at light loads

• Forced Continuous Conduction Mode (FCCM) for tight output ripple and voltage requirements

• 8 selectable frequency settings from 250kHz to 1MHz

• Pre-biased start-up capability

• Built-in output discharge circuit

• Open-drain power-good output

• 3.5mm × 4.5mm, 28-pin VQFN package

• Create custom designs using the TPS53513 with the WEBENCH® Power Designer

Applications:

• Server and cloud computing Point-of-Load (POL)

• Broadband, networking, and optical communication infrastructure

• Input/Output (I/O) power supplies