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IC REG BUCK ADJ 12A 28VQFN
1 Features
• Integrated 13.8– and 5.9-mΩ MOSFETs Support 12-A Continuous Output Current
• Adjustments Available Through PMBus™SWIFT™ – Voltage Margin and Adjustment
– Soft-Start Time
– Power-On Delay
– VDD UVLO Level
– Fault Reporting
– Switching Frequency
• Supports All Ceramic Output Capacitors
• Reference Voltage 600 mV ±0.5% Tolerance
• Output Voltage Range: 0.6 V to 5.5 V
• D-CAP3™ Control Mode With Fast Load-Step Response
• Auto-Skipping Eco-Mode™ for High Light-Load Efficiency
• FCCM for Tight Output Ripple and Voltage Requirements
• Eight Selectable Frequency Settings from 200 kHz to 1 MHz
• 3.5 mm × 4.5 mm, 28-Pin, QFN Package
• Server and Cloud-Computing Point-of-Load (POL) Products
• Broadband, Networking, and Optical Communications Infrastructure
• I/O Supplies
• Supported at the WEBENCH™ Design Center
3 Description
The TPS53915 is a small-sized, synchronous buck converter with an adaptive on-time D-CAP3 control
mode. The device offers ease-of-use and low external-component count for space-conscious power
systems.
This device features high-performance integrated MOSFETs, accurate 0.5% 0.6-V reference, and an integrated boost switch. Competitive features include very-low external-component count, fast loadtransient response, auto-skip mode operation, internal soft-start control, and no requirement for compensation. The device also features programmability and fault report via PMBus™ to simplify the power supply design.
A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS53915 is available in a 28-pin QFN package and is specified from –40°C to 85°C ambient temperature.
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