TPS53315RGFR Power Regulator IC Switching Voltage Regulators 12A Step-Down Reg

1 Features

• Conversion Input Voltage Range: 3 V to 15 V

• VDD Input Voltage Range: 4.5 V to 25 V

• Output Voltage Range: 0.6 V to 5.5 V

• 5-V LDO Output

• Integrated Power MOSFETs with 12-A Continuous Output Current

• <10-μA Shut Down Current

• Auto-Skip Eco-modeTM for Light-Load Efficiency

• D-CAPTM Mode with Fast Transient Response

• Selectable Switching Frequency from 250 kHz to 1 MHz with an External Resistor

• Built-in 1%, 0.6-V Reference

• 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable Internal Voltage Servo Soft-Start

• Pre-Charged Start-up Capability

• Integrated Boost Switch

• Adjustable Overcurrent Limit Via External Resistor

• Overvoltage/Undervoltage, UVLO and Over- Temperature Protection

• Support All Ceramic Output Capacitors

• Open Drain Power Good Indication

• 40-pin VQFN Package with Thermal Pad

2 Applications

• Server and Desktop Computers • Notebook Computers
• Telecommunication Equipments

3 Description

TPS53315 is a D-CAPTM mode, 12-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and small package power systems.

This device features single-rail input support, one 19- mΩ and one 7-mΩ integrated MOSFET, accurate 1%, 0.6 V Reference, and integrated boost switch. A sample of competitive features include: greater than 96% maximum efficiency, 3 V to 15 V wide input voltage range, very low external component count, D- CAPTM mode control for super fast transient, selectable auto-skip and PWM operation, internal soft-start control, adjustable frequency, and no need for compensation.

The conversion input voltage ranges from 3 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.

The TPS53315 is available in a 5 mm × 7 mm 40-pin, VQFN package and is specified from –40°C to 85°C.

Device Information